INFORMATION

Speed up your internet by 20%

2007-07-29T01:21:00.000-07:00

Microsoft reserves 20% of your available bandwidth for their own
purposes like Windows Updates and interrogating your PC etc

You can get it back:

Click Start then Run and type "gpedit.msc" without quotes.This opens
the group policy editor. Then go to:
Local Computer Policy
then Computer Configuration
then Administrative Templates then Network then QOS Packet Scheduler
and then to Limit Reservable Bandwidth.

Double click on Limit Reservable bandwidth. It will say it is not
configured, but the truth is under the 'Explain' tab i.e."By default, the
Packet Scheduler limits the system to 20 percent of the bandwidth of a
connection, but you can use this setting to override the default."
So the trick is to ENABLE reservable bandwidth, then set it to ZERO.
This will allow the system to reserve nothing, rather than the default
20%.It works on Win 2000 as well.

How did you like it.please comment.

Note:This trick works only for windows xp sp2 professional and windows..
2000 professional.It does not work on windows xp sp2 home edition

Guidelines for Effective Data Presentations

2007-07-29T01:18:00.000-07:00

(June 2003) Population and health studies, demographic surveys, censuses, and other research findings can play a key role in guiding policy and resource-allocation decisions. Yet every year, millions of dollars are spent to produce research results that fail to reach decisionmakers in a way that they can understand and use.

This guide gives practical advice and examples in the art of presenting data to nonspecialist audiences. It is intended for people whose positions require interpreting and disseminating information to a variety of audiences that may not be familiar with statistics. Potential users of the guide include staff of statistical offices, research institutions, public- and private-sector population and health programs, monitoring and evaluation units, donor agencies, and universities.

It addresses a number of questions for developing effective presentations: What are the essential steps in organizing an effective presentation? What are the most common dos and don’ts for creating text and graphic slides? How can you make your presentation compelling and memorable? How can you ensure that a dissemination seminar will be well organized and successful?

The first four sections present practical techniques on how to organize and deliver effective presentations and organize a successful data dissemination seminar. The guide also contains two appendices with sample slides and reference material for preparing presentations in PowerPoint.

Acknowledgments; Introduction; Section 1: Six Steps to Developing an Effective Presentation; Section 2: Delivering an Oral Presentation (PDF: 564KB)

Section 3: Presentation Dos and Don’ts: Tips for Preparing Great Slides (PDF: 1.79KB)

Section 4: Preparing for a Data Dissemination Seminar; Section 5: Writing Research Results for the Media (PDF: 302KB)

Appendix 1: Sample Presentations on Population, Health, and Nutrition Topics; Appendix 2: Notes on Making Presentations in PowerPoint (PDF: 564KB)

Sample PowerPoint presentations from Appendix 1

1998 Census of Malawi District Profiles: Zomba (PPT: 514KB)
Nutrition in Bihar: India National Family Health Survey 2 (PPT: 260KB)
Family Planning and Quality of Care in Bihar: India National Family Health Survey 2 (PPT: 828KB)
Tanzania Reproductive and Child Health Survey (PPT: 570KB)
Maternal and Child Health: 2001 Nepal Demographic and Health Survey (PPT: 489KB)
Prevalence of Domestic Violence in Eastern Europe: Selected Findings From Reproductive Health Surveys in Latin America (PPT: 166KB)
Saving Pregnancies and Newborn Babies From Syphilis (PPT: 147KB)
Monitoring and Evaluation of AIDS Programs: Sexual Behavior (PPT: 1.9MB)

NOTEPAD FUN

2007-07-29T01:15:00.000-07:00

1. Open a blank Notepad file
2. Write .LOG as the first line of the file, followed by a enter. Save
the file and close it.
3. Double-click the file to open it and notice that Notepad appends the
current date and time to the end of the file and places the cursor on
the line after.
4. Type your notes and then save and close the file.

After that open the file and see the changes.

Marketing concepts...Real Funny !!

2007-07-29T01:13:00.002-07:00

Professor at IIMs explaining marketing concepts to Students


1. You see a gorgeous girl at a party. You go up to her and say: "I am
very
rich. "Marry me!" - That's Direct Marketing"

2. You're at a party with a bunch of friends and see a gorgeous girl.
One
of your friends goes up to her and pointing at you says: "He's very
rich.
"Marry him." -That's Advertising"

3. You see a gorgeous girl at a party. You go up to her and get her
telephone number. The next day, you call and say: "Hi, I'm very rich.
"Marry me - That's Telemarketing"

4. You're at a party and see gorgeous girl. You get up and straighten
your
tie, you walk up to her and pour her a drink, you open the door (of the
car) for her, pick up her bag after she drops it, offer her ride and
then
say: "By the way, I'm rich. Will you "Marry Me?" - That's Public
Relations

5. You're at a party and see gorgeous girl. She walks up to you and
says:"You are very rich! "Can you marry me?" - That's Brand Recognition

6. You see a gorgeous girl at a party. You go up to her and say: "I am
very
rich. Marry me!" She gives you a nice hard slap on your face. - "That's
Customer Feedback"

7. You see a gorgeous girl at a party. You go up to her and say: "I am
very
rich. Marry me!" And she introduces you to her husband. - "That's
demand
and supply gap"

8. You see a gorgeous girl at a party. You go up to her and before you
say
anything, another person comes and tells her: "I'm rich. Will you marry
me?" and she goes with him - "That's competition eating into your
market
share"

9. You see a gorgeous girl at a party. You go up to her and before you
say:
"I'm rich, Marry me!" your wife arrives. - "That's restriction for
entering
new markets"

way to save ur life during heart attack

2007-07-29T01:13:00.001-07:00

Let's say it's 6.15 pm and you're going home (alone of

course), after an unusually hard day on the job.

You're really tired, upset and frustrated.



Suddenly you start experiencing severe pain in your

chest that starts to radiate out into your arm and up

into your jaw. You are only about five miles from the

hospital nearest your home. Unfortunately you don't

know if you'll be able to make it that far. You have

been trained in CPR, but the guy that taught the

course did not tell you how to perform it on yourself.



HOW TO SURVIVE A HEART ATTACK WHEN ALONE

Since many people are alone when they suffer a heart

attack, without help,the person whose heart is beating

improperly and who begins to feel faint, has only

about 10 seconds left before losing consciousness.



However,these victims can help themselves by coughing

repeatedly and very vigorously. A deep breath should

be taken before each cough, and the cough must be deep

and prolonged, as when producing sputum from deep

inside the chest.



A breath and a cough must be repeated about every two

seconds without let-up until help arrives, or until

the heart is felt to be beating normally again.



Deep breaths get oxygen into the lungs and coughing

movements squeeze the heart and keep the blood

circulating. The squeezing pressure on the heart also

helps it regain normal rhythm. In this way, heart

attack victims can get to a hospital. Tell as many

other people as possible about this. It could save

their lives!!



A cardiologist says If everyone who gets this mail

sends it to 10 people, you can bet that we'll save at

least one life.

main drawbacks of FOREX trading

2007-07-29T01:10:00.001-07:00

Why is it that very few traders succeed in the Forex trading environment while the grand majority of traders fail to achieve success? There is no hard answer to this question, there are a few things that will put you one step ahead and will definitely put the odds in your favor.

The main purpose of this article is to guide you through some important aspects of Forex trading. But in a different way, instead of telling you what to do or the best way to do it, it will tell you what to avoid. Sometimes it is better to identify the main drawbacks on a discipline and then isolate them so we have the best results at a certain level of development.

The Holy Grail

Many traders spend years and years trying to find the Holy Grail of trading. That magic indicator or set of indicators, only known by a few traders, that will make them rich in a short period of time.

Fact: Well, there is no magic indicator, nor a set of indicators that will make anyone rich in a short period of time. The main reason of this is because market changes, every single moment is unique. Every Forex trading system will fail from time to time. Our work here is to find a Forex trading system that fits our personality as traders, otherwise the trader will find it hard to follow it.

Looking for Easy Money

Unfortunately most traders are attracted to the Forex market for this reason. Mainly because of the publicity showing or rather trying to show how easy is to trade and make money in the Forex market.

Fact: Yes, it is very easy to trade, anyone can do it. It is as hard as one click. But the second part of it isn't that easy. Making money or achieving consistent profitable results is hard. It requires lots of education, patience, discipline, commitment, and this list could go to infinite. In a few words, it is possible to have consistent profitable results, but definitely it is not easy.

Looking for Excitement

Some other traders are attracted to the Forex market or any other financial market because they think it is exciting to be a trader.

Fact: Yes, it is very exciting to trade the Forex market. But if this is the main reason you are still trading the Forex market, sooner or later you will discover the most expensive adventure you have ever known. Do some thinking on it.

Not Using Money Management

Most traders forget about this important aspect of trading. They think they shouldn't be using money management until they achieve consistent profitable results. They totally forget about the risk side of trading.

Fact: Money management allows your profits to increase geometrically, but also limits your risk on every single trade. Money management tells you how much to risk on each trade. Using money management is a must if you want to achieve your trading goals. By using money management you make sure you are going to be able to trade tomorrow, the next week, month and the following years.

Not Being Psychology Tuned

This is one of the most underestimated subjects when it comes to trading. One of the main principles of financial markets is that the price of each instrument is based on the perception of each individual participant “the crowd.” In other words the price of each instrument is determined by the fear, greed, ego and hope of all traders.

Fact: Being aware of all psychological issues that affect the decisions made by traders will definitely put the odds in your favor.

Lack of Education

Education is the base of knowledge on every discipline. As lawyers and doctors require several years of college until they get their degree, Forex traders also require long years of study. It is better to have someone experienced to guide you through your trading, since some information could take you in the wrong path.

Fact: The market teaches us invaluable lessons on every single trade made. The process of education for a Forex trader could take for ever. That's right, we never stop learning. We should be humble about the markets and our knowledge; otherwise the market will prove us wrong.

These are some of the most important barriers every trader faces when trying to trade successfully.

Trading successfully the Forex markets is no easy task, it requires a lot of hard work to do it right, but with the right education, you will put yourself closer to your trading goals.

Things u should know about FOREX trading

2007-07-29T01:08:00.000-07:00

How difficult is it to make money trading the Forex market? How much time does it take to actually be able to make a living trading the Forex market? These and other important aspects of trading are to be discussed in this article.

Trading the Forex market has many benefits over other financial markets, among the most important are: superior liquidity, 24hrs market, better execution, and others. Traders and investor see the Forex market as a new speculation or diversifying opportunity because of these benefits. Does this mean that it is easy to make money trading the Forex Market? Not at all.

Forex brokers agree that 90% of traders end up losing money, 5% of traders end up at break even and only 5% of them achieve consistent profitable results. With these statistics shown, I don't consider trading to be an easy task. But, is it harder to master any other endeavor? I don't think so, consider musicians, writers, or even other businesses, the success rates are about the same, there are a whole bunch of them who never got to the top.

Now that we know it is not easy to achieve consistent profitable results, a must question would be, Why is it that some traders succeed while others fail to trade successfully in the Forex market? There is no hard answer to this question, or a recipe to follow to achieve consistent profitable results. What we do know is that traders that reach the top think different. That's right, they don't follow the crowd, they are an independent part of the crowd.

A few things that separate the top traders from the rest are:

Education: They are very well educated in the matter; they have chosen to learn every single and important aspect of trading. The best traders know that every trade is a learning experience. They approach the Forex market with humility, otherwise the market will prove them wrong.

Forex trading system: Top traders have a Forex trading system. They have the discipline to follow it rigorously, because they know that only the trades that are signaled by their system have a greater rate of success.

Price behavior: They have incorporated price behavior into their trading systems. They know price action has the last word.

Money management: Avoiding the risk of ruin is a primary subject to the best traders. After all, you cannot succeed without funds in your trading account.

Trading psychology: They are aware of every psychological issue that affects the decisions made by traders. They have accepted the fact that every individual trade has two probable outcomes, not just the winning side.

These are, among others, the most important factors that influence the success rate of Forex traders.

We know now that it is not easy to make money trading the Forex market, but it is possible. We also discussed the most important factors that influence the rate of success of Forex traders. But, how much time does it take to have consistent profitable results? It is different from trader to trader. For some, it could take a life time, and still don't get the desired results, for some others, a few years are enough to get consistent profitable results. The answer to this question may vary, but what I want to make clear here is that trading successfully is a process, it's not something you can do in a short period of time.

Trading successfully is no easy task; it is a process and could take years to achieve the desired results. There are a few things though every trader should take in consideration that could accelerate the process: having a trading system, using money management, education, being aware of psychological issues, discipline to follow your trading system and your trading plan, and others.

Gonzo Engineering

2007-07-29T01:07:00.000-07:00

Should you fail to pilot your own ship, don’t be surprised at what inappropriate port you find yourself docked.

-- Tom Robbins in Jitterbug Perfume

If you probe the interstices of an industry increasingly dominated by Big Business, you’ll discover a microculture of hackers motivated by the mad bliss of invention, surviving on the sweet contagion of creative energy. Employment bonuses mean nothing here; fancy packaging and market share are viewed with contempt if a product lacks art. Beauty, now that’s the thing—the beauty of elegant code, of a robust network, of a balanced design that “just works” without duct tape and feature bloat.

It is from this culture that the Internet emerged, as well as the Open Source movement. Less obviously, it’s also a diverse community of home-shop machinists, PIC magicians, guerilla solar experimenters, human-powered vehicle designers, robotics hobbyists, amateur radio satellite builders, and countless other independent developers. If you want to see passionate invention without the sloppy overhead of a big R&D budget or the weird constraints of maximizing shareholder value, go find a hacker… someone who gets a techno-boner from circumventing limitations and knows how to get things done.

This has been my world for 30 years—a world where fun is the bottom line and livings are made on the opportunistic spinoffs of creativity, not selling one’s life for a salary. We subsist in the dark matter between industries, trolling flea markets and dumpsters for Obtainium, mail-ordering goodies, making holy pilgrimages to the surplus Mecca of Silicon Valley, re-purposing the detritus of corporate America to our own obsessive ends. Scattered among us are conjurers, alchemists, wizards, lone-wolf inventors, quirky entrepreneurs, larger-than-life writers, and the origins of more than a few disturbing geek stereotypes.

In this parallel universe, the motivation for creating is highly personal. In industry, you can bet that any massive development effort is associated with a business plan—there’s no room for slack in a bottom-line world, and seldom are things done for fun. But here, you’ll find entire lifetimes given over to chasing quixotic dreams; you’ll see personal fortunes whittled down to marginal subsistence in the name of invention and reputation. Occasionally there’s an imagined pot o’ gold, to be sure, but most likely it’s just a reassuring fiction to keep the spousal unit calm in the face of demonic focus, Every Goddamn Night Out There in the Shed. No, our motives are usually as guileless as passion itself: chasing daydreams, building tools, realizing obsessions, shattering limits, publishing, earning grins of appreciation from the cognoscenti and accolades from neophytes.

These are things that touch the soul more than the bank account, and there’s definitely a conceit about it—our sense of security lies more in our toolsets than our 401-Ks. We feel sorry for vested employees with their BMWs and well-appointed houses, even as we decorate our labs with rusted hand-me-down office furniture and pay for system upgrades by mining our hardware boneyards through eBay. But money is not the point. It’s the exhilaration of surfing the knee of the learning curve, the almost erotic bliss of a machine flickering to life—catching the spark and glowing while the rest of the world sleeps.

Of course, getting to that point can involve a ludicrous amount of work.

The Microship

OK, so what is it, exactly, that has induced fellow techies to devote their time and energy to a crazy technomadic quest, attracted sponsors, and gobbled up all of my available resources while my contemporaries have been feathering their nests? This project has been a moving target and an all-consuming obsession at the same time, and one of the biggest challenges has been holding on to a central vision that drives the design... even as it changes, sometimes radically, from year to year.

The machine has to satisfy the urges that spawned all this and be intrinsically sexy, yet address practical issues like serviceability and sufficient adherence to standards to ensure the availability of competent help. The underlying fantasy must be potent enough to withstand dead-ends, evolution of technology, and the cyclic wax and wane of passion. And it has to be beautiful, a bit weird (but never in a gratuitous sense!), and so profoundly enchanting to geek sensibilities that it takes on a life of its own and infuses the very dreams of the participants with visions of the system in action.

Why should you care about some bozo's boat? Simple: in this sprawling website, we are embarking on an exploration of gonzo engineering, an almost embarrassingly intimate look at how crazy unbalanced people can take an ambitious dream and pull together the resources to make it come true (and then go out and play). You’ll never get a corporate middle manager to admit it, but such lunacy, driven by emotion and other unquantifiable wild cards of the psyche, lies at the very heart of the design process. You can formalize tools and implement procedures all you like, but you can’t fit passion on a PERT chart; trying to do so will repel the very people you need most.

The first step is one of the most fun: indulging in a fantasy rich enough to trigger secret grins of hard-core technolust. That’s the stuff that makes otherwise sensible engineers willing to devote years, if that’s what it takes, to getting it right.

A Touch of Nomadness

I suppose I should begin with a philosophical perspective. After all, the Microship isn’t just a pedal/solar/sailboat, wireless-linked embedded system, or node in a flotilla of like-minded wanderers; nor is it just a telemetry probe, babe magnet, or sneaky way to get back on the corporate speaking circuit now that BEHEMOTH is retired alongside other silicon-encrusted marvels in The Computer History Museum.

One of the great secrets I’ve discovered is that even someone with stupendously bad work habits (like me) can get a prodigious amount accomplished by applying one simple and obvious technique: keep moving in the same direction for a long time. Unfortunately, that can lead one down the path of specialization—an essential part of the great symbiosis between those who dream and those who produce. Specialization along with its concomitant skills is obviously necessary to get real work done, but if you’re not careful it can also become a filter through which you see the world, attenuating everything that is not somehow related to your primary focus. Over time, this can cause severe perceptual distortion from which it can be difficult to recover (especially if said specialty ends up, not necessarily through any fault of your own, becoming an evolutionary dead end in a rapidly changing industry).

That’s an easy platitude for a self-proclaimed generalist to spout, but how do we resolve the problem? How do we hold on to a central design objective for a decade or more without becoming like one of those single-issue political or religious zealots who lose the broader context entirely and descend into extremism? It’s much easier to end up there than you might think, especially when you audaciously choose to chase a personal obsession rather than sell 40-hour weeks while hanging onto the remainder for your own sanity-preserving pursuits.

The trick is at once simple and fiendishly tricky: all it takes is caring so passionately about the project that it fills your daydreams, turns trade journals into treasure hunts, induces you to recruit your friends, inspires doodles, and overlays a sense of purpose onto every foray into the backwaters of the web. This is a lot to ask of a job that’s been dumped on you by management, and one of our central messages here is that if this crazy-talk of passion gets you all fired up and chafing at the bonds of a career that isn’t letting you play enough, then maybe some restructuring is in order. For there is simply no way that crank-turning, even by a well-oiled department full of Really Smart People, is going to give you a sustained rush of intense creative obsession; doing that requires a suite of characteristics that are generally regarded as pathological in a corporate environment:

Enough chutzpah to believe that you are doing something original and important, but the humility to steal shamelessly from the work of those who have preceded you
Enough schmoozing ability to induce others to buy in to the dream, but the stubbornness to continue believing in your mad quest when associates have given up on you
Enough optimistic naiveté to interpret catastrophic failures as steps along a continuous path, but the sensitivity to recognize the real gotchas (like your own change of heart) when they subtly appear
Enough arrogance to ignore the warnings and skepticism of people with far more experience, but the wisdom to shut up and listen quietly to the advice of practitioners in a completely unrelated field

People who behave this way are often described as having attitude problems, difficulty working well with others, and a tendency to jump around and not finish assignments. These are not the things managers look for in employees.

What I’m trying to tell you here is that if you are one of these troublesome folks, you need to shape your environment to support your passions: nothing is more important than removing the barriers that our culture erects around creative madmen, and few companies are willing to customize a job description to allow your brain to go berserk in its own juices. In severe cases, you might even need to jump ship and accept the insecurities that accompany working alone. (On the other hand, if you are in management and are trying to pull off the impossible, then you need to recognize and encourage the hackers in your midst, giving them the freedom to be profoundly annoying and unpredictable.)

All this is simply a contextual backdrop for the real point here, which is that massively audacious feats of creativity fall out of a way of thinking that is much more a lifestyle than a toolset. I find myself smirking at books about management and team-building, when virtually every world-changing cusp in the fabric of technology can be at least partly attributed to the obsessive-compulsive behavior of some intense character who broke the rules, dropped out of school, irritated colleagues, jumped between careers, got in trouble, or, as the schoolbooks used to say about the inventors I tended to identify with, “died alone in poverty, an embittered man.”

It seems we keep returning to this theme: a lifestyle of dedication to a mad dream, with everything else shoved aside as necessary to make room for equipment, learning curves, relationships with gurus and assistants, testing phases, and the endless quest for support. It’s not necessarily profitable, nor is it particularly fun (in the amusing sense), but there is something blissful about having a raison d’etre, a central passion, an unwavering navigational objective that allows every instant of your life to be tagged unambiguously with Distance To Go, Cross-Track Error, Estimated Time of Arrival, and Speed Over Ground. Such clarity may be illusory, but it beats floundering around every day, changing direction on a whim, and questioning your purpose even while working your butt off and looking forward mostly to evenings, weekends, vacations, and retirement.

It’s also no guarantee of success. But even going spectacularly down the tubes feels kind of noble when it’s part of your life’s enduring quest.

Still, I keep wanting to overlay some kind of formality on this. If the Microship is indeed to be a metaphor for gonzo engineering, as I claim, aren’t there a few rules we can apply that are a bit more useful than saying “just dream it,” like some incongruously successful relic of the 60s who became a crystal-sucker in the New Age fringes of Silicon Valley before stumbling into a founder’s pool during the can’t-fail dotcom boom? Like, it’s all about the fundamental vibrations of your creative energy, man…

Well, um, yes. But if this level of design is indeed a lifestyle, then the closest we can get to “formal tools” is a body of behaviors, attitudes, and hacks. Let’s put on an engineering hat and attempt to consider the problem in that light.

Formal Tools, Briefly Considered

Sometimes I wish I could claim that Microship development had been a tightly managed progression in which, beginning with a vaporous initial concept, we generated increasingly refined formal specification documents, mapped everything onto a PERT chart to establish dependencies, used that to drive human resources and purchasing departments, then underwent a tightly scheduled fabrication and coding phase focused on milestones and design reviews. That’s how big companies claim to do it… and, hey, we even have some nifty project-management software that knows how to convert TO-DO lists into pretty pictures.

During the BEHEMOTH era, I spent a very interesting afternoon at Trimble Navigation, makers of the bike’s GPS. These weren’t colorful, user-friendly handhelds wrapped around off-the-shelf chipsets back then; they were extremely complex DSP engines coupled with RF hybrid black magic that pushed just about every envelope in the book. I remember being captivated by a massive floor-to-ceiling PERT chart, spanning an entire hallway, the completed boxes bright yellow, the web of interconnections revealing Deep Understanding of the design process and accurate predictions of every step remaining. “I should do this for the bike,” I mused to my host. “It looks like a great tool.”

“Nah,” he replied. “Project management tools assign resources to tasks. You work alone. Just do something.”

He was right. Even with first-class volunteers and occasional contract help, Nomadic Research Labs is a tiny operation, a de facto non-profit, beset by overload and bad work habits, constantly challenged by such fundamental issues as demotivation, distraction, and lack of funds. A PERT chart in this environment would be masturbatory, and would presuppose a stable design.

Engineering in a Nutshell

What actually happened was much more organic, and I’ve noted with amusement that, despite protestations to the contrary among the engineering population, it’s typical of the way things usually work in industry. Here’s how to manage a huge, complex project:

Accept going in that your first tentative decomposition of the fundamental concept will yield an over-simplified TO-DO list, distorted by misunderstanding of key issues.
Avoiding all the items labeled TBDWL (To Be Dealt With Later) or ATAMO (And Then A Miracle Occurs), dive headlong into the well-defined parts, finishing some of the electronic design so early in the game that it is guaranteed to be obsolete before the physical substrate is built.
Blunder ahead on the non-obvious parts, getting pleasantly distracted by learning curves and occasional moments of certainty, only to discover basic flaws in your reasoning.
Now that you are forced to re-think the initial concept, map it onto newly recognized reality to yield a fresh TO-DO list (with new lab notebooks and computational tools to keep things lively) and another cycle of enthusiastic activity.
Repeat steps 3-4 countless times at varying levels of abstraction ranging from the entire system down to individual components.
Meanwhile, since technology evolves with frightening rapidity, acknowledge the fact that any computer-based system is such a moving target that if it’s not completed quickly, it will be irrelevant by the time it ships.
Respond by simplifying the design, further refining your objectives and abandoning dead-end ideas while doggedly pursuing others that have come to represent too large an economic or emotional investment to allow a graceful retreat.
Compromise here and there, bang out a few things that weren’t on the list, then add them and cross them off to make yourself feel good.
Get totally sidetracked a few times, and periodically dive into major development marathons to meet public deadlines like trade shows, pulling all-nighters in PFD mode (Procrastination Followed by Despair).
Announce new completion dates whenever a previously predicted one has passed, and keep driving your PR engine to maintain interest during a process that is a textbook illustration of Hofstadter’s Law (“Everything takes longer than you expect, even when you take into account Hofstadter’s law.”)

Part of this development heuristic is just sloppy management, but it also reflects the way we think. This is why engineering is, at its heart, an art form (and why the average completion time of a homebuilt boat is 135 years).

Perhaps the most interesting thing about this seemingly ugly process is that it’s iterative and self-correcting. Grandiose or stupid ideas may not be obvious during first-pass blue-sky analysis (when the project is glued together by wishful thinking), but it’s another story entirely when it all has to be converted into Clearly-Defined Tasks (CDTs) and drawings that make sense to machinists. Without some kind of closed-loop intellectual process to fine-tune your thinking, it would be impossible to get to the point where you can start using engineering tools to convert fantasies into contraptions.

Trying to shortcut this by starting on Day One with formal design methodologies can have the catastrophic effect of committing you to an ill-defined goal state, whereupon the end result is shaped more by your toolkit than by the supposed objective. That’s why so many products seem malformed, patched, and otherwise inelegant: management loves formal methods and looks askance upon such frivolous notions as approaching product design as a delicate blend of art and engineering. The exceptions, when they occur, are a joy to use. The rest miss the point, no matter how stylish their exterior or sophisticated their underlying technology.

So it appears that designing a system isn’t nearly as rigid a process as typical engineering textbooks would have you believe. Your component choices affect the shape of the thing you’re building; said shape in turn creates constraints that affect your choice of components. Such psychological race conditions can only be resolved by tweaking the granularity knob while adding inputs to your evolving mental model, until the correct solution congeals in a flash.

It’s easy, and here’s how to do it: Prop your feet up on your desk, relax, and form a fantasy of the desired results. Now turn it slowly in your head while calmly examining it from all sides, allowing input variables to float until an unanticipated combination satisfies your psychic fantasy-comparator and generates a flash of recognition. Since all your noodling is naturally saved in a big circular buffer called short-term memory, let this recognition event pre-trigger a snapshot of the conditions that immediately preceded it (before accumulated pondering-propagation delays introduce conceptual drift). There’s your design specification. Take that and run with it.

This is probably not an engineering methodology that makes managers comfortable, though it’s a good summary of life in the trenches. There is a pervasive myth that structured methods and sequential procedures, used in isolation, will get you there… but I’ve never seen it work that way. The tools don’t actually start to become useful until you’re quite thoroughly immersed, and that can take weeks of appearing, to outside observers, as if you are loafing.

A Sense of Urgency

Speaking of time, there’s another big difference between gonzo engineering and life in industry. Schedules and deadlines, the X-axis of project management, are anathema to the independent worker. Don’t tell me that I have until Monday morning at 9:00 to hand you a report on the solar array thermal retrofit; I’m still in the wall-staring phase on that one and expect to be here for days! I might emerge occasionally to troll the web for prior art to steal, get distracted by other parts of the project, or just say “screw it” and go sailing on a friend’s catamaran in the name of research, but a deadline? Imposing order on the project would send me on a search for something better suited to my interpretation of the term “work.”

Alas, life isn’t like that in a corporate environment, where people actually pay you to behave. Critical-path management, release dates, pre-production prototypes, purchasing cycles, trade shows… there are countless reasons why the long-suffering denizens of cubicles and labs are not given free rein to go with their instincts. But despite the importance of scheduling in coordinating a complex enterprise, there are huge costs involved: design compromises, sneaky shortcuts, employee burnout, kluged patches, bad assumptions, useless documentation, and incomplete testing, just to name a few. This is analogous to sailing: it is well understood that a sailor with no schedule always has fair winds. The people who find themselves calling MAYDAY in a Force 10 gale are usually those who have decided to push their luck for some time-related reason: they’re in a race, vacation’s almost over, the crew has to reach port in time to use a return ticket, or some arbitrary schedule laid out over charts and cruising guides in a cozy den long ago is now affecting the skipper’s judgment.

Working alone and with volunteers on something that will be done when it’s done (and not before), we have the luxury of ignoring the calendar—although with that comes the dangerous temptation to give in to the dreaded BEHEMOTH Effect (“Hey, here’s a cool gadget; let’s see how we can integrate it into the system!”) Somewhere in there is the right compromise, but we are going to assume that when you’re building your life around the Ultimate Project, schedules are not a factor.

Convenient, eh?

An Economic Aside

While we’re ignoring things, let’s talk about money. From an engineering perspective, this can be even more annoying than time—there’s nothing like “aggressive cost minimization” to take all the fun out of a design. Fortunately, one of the intrinsic features of passionate dream-chasing is that everything else is secondary, and it’s thus easy to justify spending as much as you have (and then some). Combine this with poverty consciousness, and one can get amazingly creative at scrounging. In addition to all the expensive bits from West Marine and McMaster-Carr, the Microship contains thousands of parts that were donated, bought surplus, extracted from dumpsters, horse-traded, repurposed, cannibalized, or fabricated on the cheap. But one issue that never came up was worrying about manufacturability and component cost. There’s a sort of certainty here that is immensely liberating: “This is the most important thing I can possibly be doing, so it doesn’t really matter what it costs to get the job done—I’ll afford it somehow.”

portrait PHOTORAPHY

2007-07-29T01:06:00.002-07:00

Portrait photography is probably the most popular form of photography out there. By this I’m not necessarily talking about professionals, but photo takers in general. The average family camera is most often used to take portraits of family members and friends in a given situation.

Taking a great portrait can be very hard work. Note that I said “great.” Any old portrait requires nothing more than a person, a pointed camera and a click.

If you want to become a great portrait photographer the most important asset to have is an interest in people. (If you’re looking to do pet portraits then you’ll need an interest in pets!!!) Before technique and lighting and lenses a portrait photographer must be able to elicit a good response from their subject. You have to be able to get the subject comfortable with you as the photographer as well as being around a camera in general. Then you have to get the person to reflect the desired mood whether it be playful, sad, inquisitive or tired. This all comes down to being good at relating with people. It has been said that a great portrait photographer will know more about their subject in an hour than some people know about their own friends in a lifetime.

A normal portrait photo will exclude any background detail. This can be achieved by using set backdrops or wide aperture settings to create a shallow depth of field. It should also be noted that in a standard portrait the subject must fill the frame. While different camera formats allow for more or less room around the subject (ie: square film vs. rectangular 35mm) you generally want at least 80% of the picture to be the subject.

You will also have to consider what type of lens to use. A wide lens is almost never used for portraits because it will always exaggerate a person’s features. A normal lens is good only when the photographer wants to present a very natural look. Even then, a telephoto is usually the best way to go. For 35mm photography it is common to use an 80mm or a 110mm lens. Larger lenses tend to flatter a person’s facial features by creating the illusion of a smaller nose. Be careful though, because large telephoto lenses often give a very shallow depth of field and that could mean a subject with sharp nose and eyes but a blurred everything else.

Other things to consider are types of film. With digital the “film effects” can be toyed with later. When using actual film though, you may want to keep in mind that people usually look best in black and white. If using color film, shop for something that highlights skin tones the best.

From here on out a lot of things come down to style. There is a general belief that portraits should never be sharp and instead photographers are encouraged to use softening filters. But when learning to become a great portrait photographer it’s up to you to decide what works best. As in any other photo field, go out and experiment as much as you can.

Disposable Camera

2007-07-29T01:06:00.001-07:00

Disposable camera: Taking photographs with disposable cameras

People use disposable cameras all the time because their cheap, easy and convenient. Still, some of the most common mistakes in photography happen because people don’t quite understand a few basic things about their disposable camera.

The biggest mistake by far is assuming that all disposable cameras are the same. This couldn’t be farther from the truth; yet time and again a customer will choose the less expensive camera thinking there’s no difference but price. I promise that there really are good and bad quality disposables.

First there is a difference between the film each disposable uses. Less expensive cameras often contain lesser quality films. This can result in very bland colors or worse. Don’t forget that even trusted brands like Kodak offer low and high end films. It is also important to make sure that the film in the camera is a good ISO. Since the lenses on disposable cameras are never what the professionals describe as “fast,” a high speed film is essential. If it will be used in the bright outdoors then a 200iso or 400iso is okay, but otherwise stick with the 800iso film. A lot of customers shy away from that option because 800iso is known for being grainy; even if that is the case it’s also a sacrifice worth making for clarity.

Almost all disposable cameras have a flash. Use it. Give yourself time before taking a picture to push the flash button to charge the flash. Make sure you don’t take the picture until the “flash ready” light is lit. When taking close-up shots of people it is almost always safer to use the flash than not. Trusting the available light is not only risky, but they type of film used in the camera assumes you will use the flash.

The exception to this rule is when the subject is just too far away. Remember that the flash can only light up subject within 10 feet or so. Notice the flashes that always go off from the stands at a sports game? Using the flash at those times will likely hurt your photograph. There is no way it will illuminate your subject, but it may bounce back from the guy in front of you.

The other distance to keep in mind is 3 feet. If you are taking a picture of something closer than that it will more than likely be out of focus. This isn’t a flaw, just an unfortunate fact of physics. Another reason for keeping the subject a bit farther away is that what you see through the viewfinder isn’t exactly what is seen by the lens. Again, physics. Once the subject is about 3 feet away then things are pretty much lined up. It’s still a good idea to leave room for mistakes at the top and bottom of the frame—just in case.

Once you’re okay with all of this then it’s as easy as grab a camera, point and shoot. Then, as long as you keep your finger away from the lens, you shouldn’t have a problem.

how to success

2007-07-29T00:59:00.000-07:00

PLAN while others are playing.


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STUDY while others are sleeping.


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DECIDE while others are delaying.


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PREPARE while others are daydreaming.


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BEGIN while others are procrastinating.


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WORK while others are wishing.


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SAVE while others are wasting .


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LISTEN while others are talking.


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SMILE while others are frowning.


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COMMEND while others are criticizing.


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PERSIST while others are quitting.


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Film Camera

2007-07-29T00:58:00.000-07:00

Film camera: Taking pictures using a film camera vs. digital camera

Are you still using film? Maybe you are thinking of going digital but aren’t sure what you’ll gain or lose. There are more differences between film and digital cameras to consider then just the medium, though the basic operation of both are very similar.

The first stage in taking pictures with film is the film itself. Loading film into a modern camera isn’t as tricky as it used to be, but it’s still harder then simply sliding in a memory chip. What type of film you use, however, can be a hard decision.

More than most people realize, there are a lot of different films available. Not only is the colour and black and white but also portrait films, tungsten films, daylight films and so on. What a lot of us are used to is consumer grade film that tries to balance all of these in to one. From there the photographer has to decide what film speed is needed. 100iso for sunlight and 400iso for indoors, perhaps. In contrast, a digital camera is capable of making all of these decisions for you.

Once the film’s in, taking the picture is similar in all camera types. Choose an automatic or manual setting then point and shoot. With the film camera, of course, the viewfinder is needed for composition. On most film cameras—those that aren’t SLR—what you see in the viewfinder isn’t exactly what is seen by the lens. The photographer must take extra care to make sure the subject is properly framed within the guidelines. Digital cameras are wonderful because of the monitor that shows the photographer exactly what’s being taken.

Film cameras win out on most digital cameras when it comes to speed of picture taking. With a digital camera there is a lot of stuff that goes on from the time you push the button until the time you can push the button again. The image has to be translated into something the processor can understand, then focused, captured, colour balanced and finally transferred to the memory chip. This causes delays before the picture can be taken and after it’s been taken. The resulting shutter lag is a common complaint. A film camera only has to focus before the shot is captured and advance the film afterwards.

When taking pictures on film the photographer always has to be more careful. There isn’t a limitless chip at their disposal and each shot costs money. Also, the quality of the picture can’t be previewed on a screen so it is very important for film users to plan ahead.

Film and digital cameras both offer a wide variety of similar accessories to help with photography. Flashes and lenses are commonly interchanged but filters are also important. Film users need to have physical filters available to help block out different kinds of light or to highlight parts of a scene. While these can be used on a digital camera, it’s less necessary because of already built in filters. Digital shots can also be taken RAW allowing the photographer to add filters and such later on. The film user doesn’t have this luxury, again bringing us back to planning ahead.

Both types of cameras are good and both offer their own benefits. A lot of professionals are still choosing to use both, digital for some things and film for another. For people just learning about photography and how film works the digital camera is often a great accessory to film in that it can be used to preview an idea before capturing it on celluloid

Phil Pivnick

black n white photography

2007-07-29T00:55:00.002-07:00

Black and white photography: Taking great black and white photographs

Photography in its simplest definition is the recording of light. When taking photographs in black and white, light and its interplay with the subject of your photo must be uppermost in your mind. With practice, you will develop the most essential skill necessary for good black and white photography -- being able to imagine your subject in black and white.

Seeing in black and white can be learned through paying close attention to the quality and direction of light. Examine the paintings of the Impressionists. These works are as much about the quality of light as they are about their subjects. One of the clearest examples is the haystack series by Claude Monet. Even though Monet’s subject and viewpoint are exactly the same in every painting, each of these paintings differs greatly because of the quality of light. It is this same consideration of light that the black and white photographer must keep in mind.

Considerations for black and white photography:

Viewpoint. The first and most important consideration of any photograph is viewpoint. What is your subject? What is it that you want to the photograph say or show.

Amount of light. Is there enough light to record your subject? The red that stands out brilliantly in an early evening color shot will be rendered gray in a black and white photo. Is there enough light to display your subject as you want it rendered?

Source of Light. Is the light source natural? Is your subject directly lit by the primary light source (sun, flash) or is the subject lit by reflection of light from clouds or off a large bright object?

Quality of Light. Direct light produces sharp dark shadows and contrast between light and dark. Diffused light, such as the light of a cloudy day, softens shadows and produces softer tones of gray in your photo.

Direction of Light. The direction of light has affects depth, dimension and detail. Side lighting produces greater dimensional effects. Front lighting reduces texture and depth. Back lighting highlights form and reduces detail.

Other Considerations. In black and white photography, as color is muted, other design elements gain in significance.

Shape – Shape is not only defined by the objects depicted but also by blocks of light and dark in the photo.
Tone – Tone is conveyed through the use of dark and light in the photograph. Dark toned photographs use shadows and dark gray areas to convey a mood such as sadness, emptiness, etc. Light toned photographs can convey moods such as openness or space.
Texture –The surface qualities of the subject give texture to a photograph. Texture can add realism or depth, and the lack of texture can add a mythic or ideal quality to a photo.
Lines – Lines give focus and structure to your photograph. Lines draw the viewer’s eye through the photograph. Lines add movement and tension.
Patterns – Pattern is the repetition of line and shape. Pattern can give rhythm and structure to a photograph.

o2 comes out of "COCOON"

2007-07-29T00:55:00.001-07:00

This time O2 started to spin cocoons. Yea, it's the phone "COCOON" we are talking about. Cocoon is a Triband GSM/GPRS/3G clamshell phone....

The beauty sports a white opaque exterior that has a hidden LED that puts on itself to show up caller ID and time in glowing green color. Make it a bedside FM radio alarm clock or just put in the earphone into the 3.5" audio jack and turn cocoon into a media center.

Cocoon sports a 2megapixel camera with autofocus and flash. The phone comes with huge 2GB of internal storage which is enough to put up all the that is expandable upto 4GB with the help of a MicroSD slot. You can stream music through the bluetooth using the A2DP technology or you can just use the 3.5" audio socket to put in your favorite earphones to feel the thump in your ears.

The phone is to hit stores in august. Till then just look at these pictures and dream about this marvel handset. Lets see if this phone could overtake the Walkman market of Sony Ericsson.

Google phone gadget has finally come to EUROPE

2007-07-29T00:53:00.003-07:00

Some time ago there were rumors on the Internet about Google Phone to be launched soon. I took this to my least attention as I thought Google would never dare step in to the hardware industry with competitors like Apple etc. But I guess RegHardware just proved that perhaps I was wrong.

Take a Look at The Google Phone

The LG’s KU-580 handset is the Google Phone for which we all have been waiting for. This great piece of gadget has all the Googe services you could imagine e.g. Google Search, Google Mail and Google Maps. The phone has got a similar scheme to the very famous LG Chocolate and has a 2 inch widescreen LCD to enhance your Google Phone experience through a 3G Connection.

Google Phone Gadget Features

Integrated FM Radio and MP3 Player
Bluetooth Stereo and 3D Sound Enhancement
2 Megapixel Clear Shot Camera
Built-in Google Services

Introduction to FOREX

2007-07-29T00:53:00.001-07:00

What is forex?

FOREX is short for FOReign (Currency) EXchange. The forex market is the international trading and exchange of currencies.

How does forex trading work?

Rather than trading on a regulated exchange like the stock markets around the world, forex itself is traded via the ‘over-the-counter’ market. This is like a series of private transactions between participants such as banks, which is why it is also known as the ‘interbank’ market

This highly liquid 24 hour market opens in New Zealand and Australia and then literally follows daylight hours around the globe with markets in Asia, the Middle East, Europe and America. This means it is continuously open from Monday morning to Friday evening and only closes down for a short weekend.

IS this a liquid market?

YES! In fact it is the biggest financial market by far with around $2 trillion EVERY DAY in turnover. London is the major world centre for forex, accounting for around one-third of trading volume, followed by New York, Tokyo, Frankfurt, Singapore, Hong Kong and Sydney.

The most traded currencies are:

US dollar (USD)
Euro (EUR)
Japanese Yen (JPY)
Pound Sterling (GBP)
Swiss Franc (CHF)
Australian Dollar (AUD)
Canadian Dollar (CAD)

However there are dozens more minor currencies which are traded.

Currencies are traded in pairs (also known as 'crosses') so for example, the most highly traded pair is the Euro - Dollar (EUR/USD).

Who trades Forex?

Governments and central banks, investment banks, retail banks, credit card companies, pension funds, international business corporations and hedge fund managers. On the smaller scale you will have individual speculators who trade the forex market, many who are able to do so via online forex brokers.

700mb picture taken by hubble space telescope

2007-07-29T00:51:00.000-07:00

Trust me I do not have any extra ordinary interest in galaxies and pictures taken through space telescopes but often one finds things that are worth mentioning to the masses. The thing to wonder is that what is so interesting about the galaxy picture you see above?

The Sharpest Galaxy Image Ever Taken

The picture you see above is rescaled and resized version of the sharpest image ever taken of the large “grand design” spiral galaxy M81. The actual size of the original picture that was taken through the Hubble Space Telescope is no less than 700 MB alone (almost 1 GB wow!). The image was released on 9 June 2007 at the American Astronomical Society Meeting in Honolulu, Hawaii.

The Hubble Telescope and The Spiral Galaxy

Thanks to the sharp view of the Hubble Space Telescope it was successful enough to resolve individual stars, along with open star clusters, globular star clusters, and even glowing regions of fluorescent gas of the galaxy that is located 11.6 million light-years away.

The original image has a resolution of 22620×15200 pixels and a size of 706 MB only!

http://www.spacetelescope.org/images/original/heic0710a.tif

You can also download a low resolution 4000×2688 version of the image which is only 6.2 MB in size!

http://www.spacetelescope.org/images/publicationjpg/heic0710a.jpg

and if you are lazy enough to give it a try. Just see the image posted on top of this story and it is just a smaller version of the original.

Resume writing TIPS

2007-07-29T00:50:00.002-07:00

OUTSIDE RESUME ::

Resume Format

Always have a .doc (Microsoft Word) format and .txt format of your resume with you. When you are filling your resume in websites, you need the text format and when you are sending resume through mail, it's better to send the .doc format.
Few companies may ask specifically for .rtf format. In such case, you don't have an option anyway.

Resume Size

Try to see to it that the .doc resume file size is less than 100 KB.

Resume File Name

Don't give some junk names as file name for the resume. If you keep use junk names, there is every possibility that your mail will travel to bulk/trash folder of recruiter. Your resume's file name should ideally denote your name, experience, technology, years of experience and company name. Keep some valid name for your resume.
Example: Resume_Chetana_J2EE_3 Years_INFOSYS.doc
Example: Resume_Chetana_FRESHER_B Tech_Computers.doc

Exclusive Mail IDs

Use only one (or maximum of 2) mail Ids exclusively for the purpose of recruitments. Do NOT use those mail Ids for any other purpose (Especially you should not use it for subscribing to any GROUP mails or FORWARD mails).

Standard Mail Service Providers

You must be careful about the service providers in which you open a mail account. Don't use the mail Ids/accounts from non-standard service providers. If they disconnect services suddenly, your mail ID fails and you need to resend resumes with new mail Id to all the companies you have already applied. So, always try to create mail Ids with standard service providers like Yahoo, Rediff, Google etc.
Choose both mail Ids from different mail service providers. In case, if one service provider experiences technical problems, you can use the other service provider. www.chetanasinterview.com

Mail Space

Always see to it that at least 50 % of your mailbox size is free. Delete unnecessary mails periodically.

Send from same mail ID

While sending the resume, preferably send it from the mail ID you have mentioned in your resume.

Always keep a copy

While sending the resume, always keep a CC/BCC to your mail ID (or at least keep your sent items ON) so that you will know whether the resume is attached properly and/or whether it's traveling to bulk mail folder. www.chetanasinterview.com

Subject Line

If the company mentions that a specific 'Job Code' has to be written in Subject Line, write that. If nothing specific, then give a proper subject line for your mail.
Example: Resume - J2EE - 3 Years Experience - INFOSYS - Bangalore

Covering Letter

Always try to include a "short" covering letter just containing your experience, current location, contact details (address & phone number) current company name, technology you are working in. Don't write too long covering letters. No HR will spend time on reading your long letters.

Short is Sweet

Don't make the resume too long. Keep it short & sweet. It should be less than 3 pages (and up to a maximum of 4). The HR will hardly have 1 minute to glance at your resume. He won't have the time to read story-like resume. So, be precise, clear and straight to the point.
Better use bullets for mentioning important points.

Check BULK mail folder

Check the BULK mail folder before blindly emptying it. I have seen people who lost call letters because of it.

INSIDE RESUME :: www.ChetanaSinterview.com

Header & Footer !

Always have a header & footer in your resume.
Header can contain a simple heading of your resume.
Footer should preferably contain the page number.

First Page is the best page to convey all about you !

Typically the HR expects all the important details in the first page. He receives hundreds of resumes and hardly gets 1 minute to look at your resume and so he won't bother to search your resume for the required details, if the details are not found in his first glance at your resume.

The first page of resume must contain the following things:

Personal Details : Full Name, Date of Birth, Passport Number.
Current Contact Details : Full Contact Address, Contact Phone Numbers, Mail ID & Alternate Mail ID.
Work Experience Summary : All the companies you have worked so far, Company Address, Website, Dates of Duration in each Company. Don't assume that everyone knows about your company. (You can highlight if your current company has any good quality levels like CMM/CMMI)
Job Responsibilities : Your job profile in your past companies. For example, you should highlight that you are working as 'Module Leader leading a team of 6 people' in your current company.
Skill Set Summary : Highlight all the technologies you know well. Don't include any technologies you have not worked on.
Certifications : Include any relevant certifications you have. That gives you an edge over others. www.chetanasinterview.com
Education Details Summary : Your Post Graduation, Graduation, Intermediate, 10 th details, Aggregate Percentage, Year of Pass out (Most important).

Contact Details at the top, not at bottom !

Contact Details should be at the top of resume, not at the bottom.
Never include the contact details in Header or Footer. They won't be visible properly.

Always provide an alternate mail ID !

Always provide an 'Alternate Mail Id' also (in case your original mail Id fails, it will be useful).
Do NOT give more than 2 mail Ids in resume. The recruiters as well as you will get confused which mail Id to send/receive call letters.

No one can save you if your Mail ID fails !

Check the mail Ids you provided in CV by sending a trial mail. (I have seen people giving Yahoo.com instead of Yahoo.co.in. If the mail Id fails when HR sends you call letter, no one can save you in this world. No HR will resend the call letter if your mail ID fails.)

Never use official mail ID ! (for Experienced people)

NEVER use OFFICIAL MAIL ID or OFFICIAL PHONE NUMBER in the resume. You must always provide the Personal mail Id & Personal Phone/Mobile Number. You can give the OFFICIAL MAIL ID for reference at the end the resume. www.chetanasinterview.com

Spell Check !

Always perform a spell check and grammar check on the resume. You don't deserve a job if you can't write your resume without mistakes.
There is nothing wrong in getting your resume reviewed by someone else. They might catch the mistakes that your eyes can never detect.

Educational details are important !

People (especially experienced people) think that they don't need to give the educational details. But they are important. If not all details, at least give the highest qualification, college/university name and aggregate percentage. (Some HR people simply delete the resumes without educational details.)

Reverse Chronological order !

Your latest job profile is more important than your first one. So, always write the details in reverse chronological order (start with the latest) especially when you are listing previous company details or educational qualification details.

Avoid Irrelevant Details !

Write straight to the point and only the details relevant to the job. (You don't need to include your family tree or how many children you have or what your wife does.)
Do not write stereotype sentences like 'I am sincere, intelligent, hardworking' etc. That's childish. Who in this world is not hardworking by the way?

Use simple Language !

Use simple English. You don't need to write complex jargon in the resume.

Write the Crux of Projects !
Don't write all about your projects. That will make the resume very lengthy. Write only the crux of the information. Following details would be enough.

Project Name, Team Size, Client Name, Duration of Project.
Short description of project (Not more than 5 to 6 lines).
Your role in project (This is very important).
Technologies used in project.

You should convey where you want to work !
Always include the following clearly in resume:

'Current Location' (mandatory). I have seen resumes in which there is no clue of where they are working currently. How can they expect a call letter ?
'Desired Location' (if you have a preference). Anyway freshers typically will not have a choice for the desired location. They better not to include it.

Experience !

Project Training done in your final academic year does not come under professional work experience. You can mention it, but not under 'Work Experience' section.
Always highlight your onsite (customer interaction experience) in your resume. That gives you an edge over others.

Salary Details

Better not to include current & expected compensation details in resume. You can convey them when you are asked to provide them during interview.

You are not submitting the application for matrimonial !

Do not include any photos in the resume unless specifically asked by the company.

You are not writing a love letter !

Avoid unwanted graphics: Either in resume or the covering letter, avoid jazzy graphic images, emoticons or multiple colors.
Avoid jazzy fonts: Preferably use some professional font (Arial or Times or Verdana) and use the same across. Use same font size across the resume (except for headings). Don't write each line in a different font and size.
However, you can use some decent shades (preferably gray color), to highlight important information. That makes the resume to look good when a printout is taken.

Take a print and see !

Take a printout of your resume and see. If you do not like it in the first look, the same will be with recruiters. (I know HR people who called candidates based on attractive resume.) So, revise it again.

same GD tips and scoring points

2007-07-29T00:50:00.001-07:00

GD Tips

1. Always be the initiator and concluder of the GD then being a participant.

2. But if you are particaipant always try to be the most vianl/key participant.

3. put points firmly and always try to get others support too.

4. if you find that the discussion os going offttrack then never loose an oppurtunity to bring it back to straem this is the best point to score max.

5. try to keep latest information on the topic.

6. be very polite , people may try to provoke you to to get more points but try to keep cool.

7. most important don't wait for your turn to speak when discussion is on. inturrupt politely if you want to put forward your points. http://www.ChetanaSinterview.com

8. last but not the least keep atab on the time given for discussion. score points by wrapping up the discussion if you feel that the discussion is heating but the time is going to be over.

9. during conclusion, do end with the conclusion note. that shows your leadership quality.

Best scoring points are:

1. initiation of discussion,

2.always keeping/trying tokeep discussion on track

3. conclusion on time

4. your capability to keep your cool and listen as well as putting your points.

Be a Leader.
GD basically means searching your team player, leadership, communication capability.

Interview Etiqutte

2007-07-29T00:49:00.000-07:00

Interview Etiqutte

First impressions can make or break an interview. Your clothes, hairstyle, gestures, and anything else an interviewer sees before you open your mouth make your first impression. Some estimates are that the first 30 seconds determine success or failure. Recruiters do not expect you to have a large career wardrobe. Buy a suit that looks good, fits well, is made well, and that will not bore you if you wear it every day for a week during recruiting season. However, there is more to "suiting up" for an interview than just wearing a suit.

Your Hair: A hairstyle that looks great with "college casual" may not work with a suit. Trim those ragged edges! Tame those tresses! Get that hair out of your eyes and off your collar! Women: if you need a big barrette for a pulled-back style, chose a simple one. Men: melt down those spikes!

Your Shoes: Shine 'em! Men: if you are buying a new pair, wing tips with laces are more professional than slip-ons or loafers. Women: If you are not accustomed to walking in heels, scuff the soles with an emery board so that you do not slip. Then, wear your sneakers to class and change right before the interview. www.chetanasinterview.com

Your Fragrance: Wearing any type of fragrance to an interview is not recommended. However, if you insist on being aromatic, do not wallow in it! Too many people are both allergic to or turned off by one scent or another, and your interviewer is sure to be one of those people.

Your Accessories: Nothing that jangles, clangs, dazzles, shimmers, or attracts more attention than you do. www.chetanasinterview.com

Your Glasses: Eye contact is important during an interview, so make sure your glasses are clean.

Your Pen: Buy a fresh new pen for the interview. A nice pen will make a better impression than your chewed up BIC.

Should a man wear an earring? Perhaps. But if you do, understand that most recruiters will think that an earring does not fit the company's image. You will have to be a very dynamic candidate to get past the "earring thing". It is probably best to interview without it.

Should a woman wear her engagement ring?

Sure. Questions about a candidate's marital status are almost certainly illegal. If the subject comes up, you can get the interview back on course by asking if marital status is one of the qualifications for the job. However if you do not want your wedding ring to be an issue at all, leave it at home.

11 reasons for rejection in the interview

2007-07-29T00:48:00.000-07:00

1. Poor attitude. Many candidates come across as arrogant. While employers can afford to be self-centered, candidates cannot.

2. Appearance. Many candidates do not consider their appearance as much as they should. First impressions are quickly made in the first three to five minutes.

3. Lack of research. It's obvious when candidates haven't learned about the job, company or industry prior to the interview. Visit the library or use the internet to research the company, then talk with friends, peers and other professionals about the opportunity before each meeting.

4. Not having questions to ask. Asking questions shows your interest in the company and the position. Prepare a list of intelligent questions in advance.

5. Not readily knowing the answers to interviewers' questions. Anticipate and rehearse answers to tough questions about your background, such as recent termination or an employment gap. Practicing with your spouse or a friend before the interview will help you to frame intelligent responses.

6. Relying too much on resumes. Employees hire people, not paper. Although a resume can list qualifications and skills, it's the interview dialogue that will portray you as a committed, responsive team player.

7. Too much humility. Being conditioned not to brag, candidates are sometimes reluctant to describe their accomplishments. Explaining how you reach difficult or impressive goals helps portray you as a committed, responsive team player.

8. Not relating skills to employers' needs. A list of sterling accomplishments means little if you can't relate them to a company's requirements. Reiterate your skills and convince the employer that you can "do the same for them".

9. Handling salary issues ineptly. Candidates often ask about salary and benefit packages too early. If they believe an employer is interested, they may demand inappropriate amounts and price themselves out of the jobs. Candidates who ask for too little undervalue themselves or appear desperate.

10. Lack of career direction. Job hunters who aren't clear about their career goals often can't spot or commit to appropriate opportunities. Not knowing what you want wastes everybody's time.

11. Job shopping. Some applicants, particularly those in certain high-tech, sales and marketing fields, will admit they're just "shopping" for opportunities and have little intention of changin jobs. This wastes time and leaves a bad impression with employers they may need to contact in the future.

TOP 10 windows vista FACTS

2007-07-29T00:47:00.000-07:00

Top 10 Interesting and Informative Facts about Windows Vista

1. Complete Name:
It is the only Windows ever with a complete name. (All others were either named after the years they were released in e.g Windows 95/98/2000 or named in short formed abbreviations e.g. Windows NT, Windows XP)

2. Largest Operating System Ever:
It is the largest Windows OS coming out. It is 1.4 times bigger than Windows XP (Meaning if you rate Windows Vista as 5 stars, then Windows Vista gets 7 stars definitely). Windows Vista will have the maximun number of editions too.

3. Graphics Hardware:
It will be the only Windows OS that will make use of the available hardware for its graphics needs.

4. Windows Sidebar:
It is the first Windows OS to have a integrated sidebar and widgets in it.

5. Aero Styles:
Though Aero Themes and Glassy Windows Styles are not uncommon. Windows Vista would still be the first Windows OS ever to use the Aero Style as default Windows Style.

6. Logon Music:
As Informed by Vista developers, It is the the only Windows OS to have the longest Startup/Logon Music ever.

7. Logoff Music:
Just as Vista is unique regarding the new logon music feature, it is also unique in the sense that it is the first Windows OS ever to have a human voice in Logoff/Shutdown music (Yes, Vista will have Female voice in Logoff Music).

8. Vista Beta Versions:
Vista boasts to own the most BETA versions as an OS (Windows XP got less).

9. Error Detection:
Windows Vista, if hangs, will tell us the reason why Windows has hung. It will be the only OS to tell us why it has hung up.

10. Microsoft Claim:
According to a claim by Microsoft, Vista cannot be hacked and it is difficult for Viruses to infect it. But with all those security holes it doesnt seem like a true fact now does it?

5 best replacements for ur windows notepad

2007-07-29T00:46:00.000-07:00

There are many applications in Microsoft Windows that do not come up to my taste and I find them quite boring and dull. Unfortunately the default Windows Notepad is one of them. Though it is one very simple and easy-to-use text editor but still it has very limited functions and is not at all recommended for hardcore users.

5 Best Replacements For Windows Notepad

I have a compiled a list of the 10 best alternatives to your Windows Notepad. These softwares just behave like Notepad in terms of function but all of them have unique extra added features that make them quite elite to Windows Notepad.

1. ProNotepad 2

ProNotepad 2 has some quick tools and tabbed browsing/editing feature.

2. Notepad++

Notepad++ is a free open source text editor that features syntax highlighting, multi-document view and you can even drag and drop files.

3. Notepad 2

Notepad 2 is another substitute for the legendary Windows Notepad. It makes itself unique as it runs out of box without any installation and does not touch your system registry. It also has syntax highlighting.

4. Metapad

Metapad is a sweet Windows Notepad replacement that is small and fast. It has all the features of Microsoft Notepad plus some extra added features.

5. NoteXpad 2.0

NoteXpad 2.0 is a replacement application for Microsoft Windows 5.0 and higher. It features command line open, insert date/time stamp on document and remembers screen position and size.

5 easy steps to capture images on web

2007-07-29T00:45:00.000-07:00

Whether you are a simple web developer or a creative blogger, in either cases you need to capture and post website screenshots in order to fulfill different tasks. There a lot of methods to take partial/full screenshots of a website but yet I have seen no one discuss this in detail even though it can be of great use.

Easy Methods To Take Full Website Screenshots

Today I will share with you all the tools and resources that you can use for free to take instant screenshots of a website and post them on your blog or anywhere you would like. Some of these tools take full website screenshots while others just take partial but all of them can come very handy at times.

Method # 1: Use The Common Print Screen Method

This is one of the most commonly used methods. In this method you just press “Print Screen” on your keyboard and the computer saves the screenshot to the memory. You can simply retrieve and paste this image by opening an image editor and pressing Ctrl-V combination. You can then save the screenshot for use on your blog or on a website.

Remember to go Fullscreen (F11) before pressing “Print Screen” in order to get good quality and full length screenshot.

Method # 2: Use Different Firefox Extensions

Page Saver is a very sexy firefox extension that lets you capture images of web pages. The thing I like about this extension is that you can take screenshot by just pressing a button on your firefox toolbar. It even gives you the option to either capture full length or scaled down images of web pages.

ScreenGrab is another similar and easy to use Firefox extension that grabs images of web pages.

Method # 3: Use Pagebull The Visual Search Engine

Pagebull is a visual search engine that displays results in form of image thumbnails. To be honest I don’t think there is any such use of other search engines as long as Google is in the spotlight but we can do a lot more using Pagebull than just search.

Type in the url of the web page of which you want to capture an image. Pagebull will generate a visual screenshot of that web page on the fly. Just hover over the “magnifying glass” icon near the bottom left of the image thumbnail and you will get a large web page screenshot of the url you requested. This is one of the best methods of taking a screenshot that I have discovered myself.

Method # 4: Use The WebShot Software

WebShot is a free and amazing utility allows you to take screenshots of web pages and save them as full sized images or thumbnails. Screenshots images can be output in the JPG, GIF, PNG, or BMP formats. The very best thing about this application is that it allows to take screenshots of multiple web pages at once.

Method # 5: Use The Double Conversion Method

This is a rather difficult and time-consuming method targeted for those users who can not use the alternative methods mentioned above. The theory behind this method is to save the web page and convert it to PDF and then use the PDF and convert it to Image. This method is one of my own inventions too (Ok! Ok! I know its crap but still it works lol)

Infosys Puzzles

2007-07-29T00:44:00.000-07:00

Brain Teaser No : 00765
Three men, including Gianni and three woman, including Sachi are in line at the BrentWood post office. Each has two different pieces of business to conduct.
1. The first person is a woman.
2. Carlos wants to send an overnight package.
3. Lau is just ahead of Pimentelli who is the same sex as Lau.
4. Gianni is two places ahead of the person who wants to buy stamps.
5. Knutson - who is the opposite sex than Rendler - isn't the person who wanted to complain about a mail carrier.
6. The six people, not necessarily in the same order are - Anthony, Donna, the person who wants to fill out a change-of-address form, the one who wants to buy a money order, the one who wants to send Airmail to Tibet and the second person in the line.
7. The four tasks of the last two people in line, not necessarily in the same order are - sending books fourth class, buying a money order, picking up a package and complaining about a mail carrier.
8. The person who wants to send books fourth class is just behind a person of the same sex.
9. Mary is just behind a person who wants to send an insured package.
10. The person who wants to send Airmail to Tibet is either two places ahead of or two places behind the one who wants to add postage to his or her meter.
11. Anthony isn't two places behind the who wants to pickup a registered letter.
12. Toriseza is two places ahead of the person who wants to pick up a package.
13. Knutson isn't just ahead of the person who wants to send an item parcel post.
Can you figure out where each customer is in the line, his or her full name (one surname is Loti) and the two things he or she wants to accomplish? Provide your answer is POSITION - FIRST NAME - LAST NAME - BUSINESS format.
A very TOUGH puzzle !!!
POS FIRST NAME LAST NAME BUSINESS
1 Sachi Loti â€¢ Fill Out a Change-of-Address Form
â€¢ Add Postage to Meter
2 Gianni Lau â€¢ Pick Up a Registered Letter
â€¢ Send an Item Parcel Post
3 Carlos Pimentelli â€¢ Overnight Package
â€¢ Send Airmail to Tibet
4 Donna Toriseza â€¢ Buy Stamps
â€¢ Send an Insured Package
5 Mary Knutson â€¢ Buy a Money Order
â€¢ Send Books fourth Class
6 Anthony Rendler â€¢ Complain About a Mail Carrier
â€¢ Pick Up a Package
============================
Brain Teaser No : 00250
There is a 50m long army platoon marching ahead. The last person in the platoon wants to give a letter to the first person leading the platoon. So while the platoon is marching he runs ahead, reaches the first person and hands over the letter to him and without stopping he runs and comes back to his original position.
In the mean time the whole platoon has moved ahead by 50m.
The question is how much distance did the last person cover in that time. Assuming that he ran the whole distance with uniform speed.
Submitted by : manojaba
Answer
The last person covered 120.71 meters.
It is given that the platoon and the last person moved with uniform speed. Also, they both moved for the identical amount of time. Hence, the ratio of the distance they covered - while person moving forward and backword - are equal.
Let's assume that when the last person reached the first person, the platoon moved X meters forward.
Thus, while moving forward the last person moved (50+X) meters whereas the platoon moved X meters.
Similarly, while moving back the last person moved [50-(50-X)] X meters whereas the platoon moved (50-X) meters.
Now, as the ratios are equal,
(50+X)/X = X/(50-X)
(50+X)*(50-X) = X*X
Solving, X=35.355 meters
Thus, total distance covered by the last person
= (50+X) + X
= 2*X + 50
= 2*(35.355) + 50
= 120.71 meters
Note that at first glance, one might think that the total distance covered by the last person is 100 meters, as he ran the total lenght of the platoon (50 meters) twice. TRUE, but that's the relative distance covered by the last person i.e. assuming that the platoon is stationary.
====================================
A contractor had employed 100 labourers for a flyover construction task. He did not allow any woman to work without her husband. Also, atleast half the men working came with their wives.
He paid five rupees per day to each man, four ruppes to each woman and one rupee to each child. He gave out 200 rupees every evening.
How many men, women and children were working with the constructor?
Answer
16 men, 12 women and 72 children were working with the constructor.
Let's assume that there were X men, Y women and Z children working with the constructor. Hence,
X + Y + Z = 100
5X + 4Y + Z = 200
Eliminating X and Y in turn from these equations, we get
X = 3Z - 200
Y = 300 - 4Z
As if woman works, her husband also works and atleast half the men working came with their wives; the value of Y lies between X and X/2. Substituting these limiting values in equations, we get
if Y = X,
300 - 4Z = 3Z - 200
7Z = 500
Z = 500/7 i.e. 71.428
if Y = X/2,
300 - 4Z = (3Z - 200)/2
600 - 8Z = 3Z - 200
11Z = 800
Z = 800/11 i.e. 72.727
But Z must be an integer, hence Z=72. Also, X=16 and Y=12
There were 16 men, 12 women and 72 children working with the constructor.
===================================
Brain Teaser No : 00438
Four friends - Arjan, Bhuvan, Guran and Lakha were comparing the number of sheep that they owned.
It was found that Guran had ten more sheep than Lakha.
If Arjan gave one-third to Bhuvan, and Bhuvan gave a quarter of what he then held to Guran, who then passed on a fifth of his holding to Lakha, they would all have an equal number of sheep.
How many sheep did each of them possess? Give the minimal possible answer.
Answer
Arjan, Bhuvan, Guran and Lakha had 90, 50, 55 and 45 sheep respectively.
Assume that Arjan, Bhuvan, Guran and Lakha had A, B, G and L sheep respectively. As it is given that at the end each would have an equal number of sheep, comparing the final numbers from the above table.
Arjan's sheep = Bhuvan's sheep
2A/3 = A/4 + 3B/4
8A = 3A + 9B
5A = 9B
Arjan's sheep = Guran's sheep
2A/3 = A/15 + B/5 + 4G/5
2A/3 = A/15 + A/9 + 4G/5 (as B=5A/9)
30A = 3A + 5A + 36G
22A = 36G
11A = 18G
Arjan's sheep = Lakha's sheep
2A/3 = A/60 + B/20 + G/5 + L
2A/3 = A/60 + A/36 + 11A/90 + L (as B=5A/9 and G=11A/18)
2A/3 = A/6 + L
A/2 = L
A = 2L
Also, it is given that Guran had ten more sheep than Lakha.
G = L + 10
11A/18 = A/2 + 10
A/9 = 10
A = 90 sheep
Thus, Arjan had 90 sheep, Bhuvan had 5A/9 i.e. 50 sheep, Guran had 11A/18 i.e. 55 sheep and Lakha had A/2 i.e. 45 sheep.
========================================
Brain Teaser No : 00590
You are locked inside a room with 6 doors - A, B, C, D, E, F. Out of which 3 are Entrances only and 3 are Exits only.
One person came in through door F and two minutes later second person came in through door A. He said, "You will be set free, if you pass through all 6 doors, each door once only and in correct order. Also, door A must be followed by door B or E, door B by C or E, door C by D or F, door D by A or F, door E by B or D and door F by C or D."
After saying that they both left through door B and unlocked all doors. In which order must you pass through the doors?
Answer
The correct order is CFDABE
It is given that one person came in through door F and second person came in through door A. It means that door A and door F are Entrances. Also, they both left through door B. Hence, door B is Exit.
As Exit and Entrance should alter each other and we know two Entrances, let's assume that the third Entrance is W. Thus, there are 6 possibilities with "_" indicating Exit.
(1) _W_A_F (2) _W_F_A (3) _F_W_A (4) _F_A_W (5) _A_W_F (6) _A_F_W
As door A must be followed by door B or E and none of them lead to the door F, (1) and (6) are not possible.
Also, door D must be the Exit as only door D leads to the door A and door A is the Entrance.
(2) _W_FDA (3) _F_WDA (4) _FDA_W (5) DA_W_F
Only door D and door C lead to the door F. But door D is used. Hence, door C must be the Exit and precede door F. Also, the third Exit is B and the W must be door E.
(2) BECFDA (3) CFBEDA (4) CFDABE (5) DACEBF
But only door B leads to the door C and both are Exits. Hence, (2) and (5) are not possible. Also, door F does not lead to door B - discard (3). Hence, the possible order is (4) i.e. CFDABE.
==================================
Brain Teaser No : 00187
There is a safe with a 5 digit number as the key. The 4th digit is 4 greater than the second digit, while the 3rd digit is 3 less than the 2nd digit. The 1st digit is thrice the last digit. There are 3 pairs whose sum is 11.
Find the number.
Answer
65292
As per given conditions, there are three possible combinations for 2nd, 3rd and 4th digits. They are (3, 0, 7) or (4, 1, 8) or (5, 2, 9)
It is given that there are 3 pairs whose sum is 11. All possible pairs are (2, 9), (3, 8), (4, 7), (5, 6). Now required number is 5 digit number and it contains 3 pairs of 11. So it must not be having 0 and 1 in it. Hence, the only possible combination for 2nd, 3rd and 4th digits is (5, 2, 9)
Also, 1st digit is thrice the last digit. The possible combinations are (3, 1), (6, 2) and (9, 3), out of which only (6, 2) with (5, 2, 9) gives 3 pairs of 11. Hence, the answer is 65292.
=======================================
Brain Teaser No : 00012
A person travels on a cycle from home to church on a straight road with wind against him. He took 4 hours to reach there.
On the way back to the home, he took 3 hours to reach as wind was in the same direction.
If there is no wind, how much time does he take to travel from home to church?
Answer
Let distance between home and church is D.
A person took 4 hours to reach church. So speed while travelling towards church is D/4.
Similarly, he took 3 hours to reach home. So speed while coming back is D/3.
There is a speed difference of 7*D/12, which is the wind helping person in 1 direction, & slowing him in the other direction. Average the 2 speeds, & you have the speed that person can travel in no wind, which is 7*D/24.
Hence, person will take D / (7*D/24) hours to travel distance D which is 24/7 hours.
Answer is 3 hours 25 minutes 42 seconds
=====================================
Brain Teaser No : 00306
If a bear eats 65 pounds in fish every day EXCEPT every 6th day which it only eats 45 pounds of fish.
If the bear continues this, how many pounds of fish will it eat in 200 days?
Submitted by : David
Answer
The bear will eat 12,340 pounds of fish in 200 days.
It is given that on every 6th day beareats 45 pounds of fish i.e. on day number 6, 12, 18, 24, .... 192, 198 the bear eats 45 pounds of fish.
Total number of 6th days = 200/6 = 33 (the bear eats 45 pounds)
Hence, the normal days are = 200 - 33 = 167 (the bear eats 65 pounds)
Thus, in 200 days, the bear will eat
= (167) * (65) + (33) * (45)
= 10855 + 1485
= 12,340 pounds
=====================================
Brain Teaser No : 00546
Ankit and Tejas divided a bag of Apples between them.
Tejas said, "It's not fair! You have 3 times as many Apples I have." Ankit said, "OK, I will give you one Apple for each year of your age." Tejas replied, "Still not fair. Now, you have twice as many Apples as I have." "Dear, that's fair enough as I am twice older than you.", said Ankit.
Ankit went to Kitchen to drink water. While Ankit was in Kitchen, Tejas took apples from Ankit's pile equal to Ankit's age.
Who have more apples now?
Answer
At the end, Ankit and Tejas, both have the same number of apples.
Let's assume that initially Tejas got N apples and his age is T years. Hence, initially Ankit got 3N apples and his age is 2T years.
Operation Ankit's Apples Tejas's Apples
Initially 3N N
Ankit gave T apples to Tejas
(equals age of Tejas) 3N - T N + T
Tejas took 2T apples from Ankit's pile
(equals age of Ankit) 3N - 3T N + 3T
It is given that after Ankit gave T apples to Tejas, Ankit had twice as many apples as Tejas had.
3N - T = 2*(N + T)
3N - T = 2N + 2T
N = 3T
From the table, at the end Ankit have (3N - 3T) apples and Tejas have (N + 3T) apples. Substituting N = 3T, we get
Ankit's apples = 3N - 3T = 9T - 3T = 6T
Tejas's apples = N + 3T = 3T + 3T = 6T
Thus, at the end Ankit and Tejas, both have the same number of apples.
===========================================
Brain Teaser No : 00326
The sum of their (father, mother and son) ages is 70. The father is 6 times as old as the son.
When the sum of their ages is twice 70, the father will be twice as old as the son.
How old is the mother?
Submitted by : Tim Sanders
Answer
The mother is 29 years and 2 months old.
Let's assume that son is X years old. Hence, father is 6X years old and mother is (70-7X) years old.
It is given that the sum of their ages is 70, which will total 140 after 70/3 years.
After 70/3 years, son will be (X + 70/3) years old and father will be (6X + 70/3) years old. Also, it is given that after 70/3 years, the father will be twice as old as the son. Thus,
(6X + 70/3) = 2 * (X + 70/3)
6X + 70/3 = 2X + 140/3
4X = 70/3
X = 35/6
Hence, their ages are
Son = X = 35/6 = 5 years and 10 months
Father = 6X = 6(35/6) = 35 years
Mother = (70 - 7X) = 70 - 7(35/6) = 29 years and 2 months
============================================
Brain Teaser No : 00040
Assume for a moment that the earth is a perfectly uniform sphere of radius 6400 km. Suppose a thread equal to the length of the circumference of the earth was placed along the equator, and drawn to a tight fit.
Now suppose that the length of the thread is increased by 12 cm, and that it is pulled away uniformly in all directions.
By how many cm. will the thread be separated from the earth's surface?
Answer
The cicumference of the earth is
= 2 * PI * r
= 2 * PI * 6400 km
= 2 * PI * 6400 * 1000 m
= 2 * PI * 6400 * 1000 * 100 cm
= 1280000000 * PI cm
where r = radius of the earth, PI = 3.141592654
Hence, the length of the thread is = 1280000000 * PI cm
Now length of the thread is increasd by 12 cm. So the new length is = (1280000000 * PI) + 12 cm
This thread will make one concentric circle with the earth which is slightly away from the earth. The circumfernce of that circle is nothing but (1280000000 * PI) + 12 cm
Assume that radius of the outer circle is R cm
Therefore,
2 * PI * R = (1280000000 * PI) + 12 cm
Solving above equation, R = 640000001.908 cm
Radius of the earth is r = 640000000 cm
Hence, the thread will be separatedfrom the earth by
= R - r cm
= 640000001.908 - 640000000
= 1.908 cm
================================
Brain Teaser No : 00319
Substitute digits for the letters to make the following relation true.
S T I L L
+ W I T H I N
--------------------
L I M I T S
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter S, no other letter can be 3 and all other S in the puzzle must be 3.
Answer
The value of L must be one more than W i.e. L=W+1 and there must be one carry from S+I=I. Also, the value of S must be 9 as S+I=I with one carry from T+T=M, which means that the value of T must be greater than 4.
From I+H=I, the value of H must be 0 as the value of S is 9.
Now, applying all those constraints and using trial-n-error, we get two possible answers.
9 7 1 6 6 9 8 5 3 3
+ 5 1 7 0 1 3 + 2 5 8 0 5 6
--------------- ---------------
6 1 4 1 7 9 3 5 6 5 8 9
==============================================
Brain Teaser No : 00271
Substitute digits for the letters to make the following Division true
O U T
-------------
S T E M | D E M I S E
| D M O C
-------------
T U I S
S T E M
----------
Z Z Z E
Z U M M
--------
I S T
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter M, no other letter can be 3 and all other M in the puzzle must be 3.
Submitted by : Calon
Answer
C=0, U=1, S=2, T=3, O=4, M=5, I=6, Z=7, E=8, D=9
It is obvious that U=1 (as U*STEM=STEM) and C=0 (as I-C=I).
S*O is a single digit and also S*T is a single digit. Hence, their values (O, S, T) must be 2, 3 or 4 (as they can not be 0 or 1 or greater than 4).
Consider, STEM*O=DMOC, where C=0. It means that M must be 5. Now, its simple. O=4, S=2, T=3, E=8, Z=7, I=6 and D=9.
O U T 4 1 3
------------- -------------
S T E M | D E M I S E 2 3 8 5 | 9 8 5 6 2 8
| D M O C | 9 5 4 0
------------- -------------
T U I S 3 1 6 2
S T E M 2 3 8 5
---------- ----------
Z Z Z E 7 7 7 8
Z U M M 7 1 5 5
-------- --------
I S T 6 2 3
Also, when arranged from 0 to 9, it spells CUSTOMIZED.
============================
Brain Teaser No : 00107
If you look at a clock and the time is 3:15.
What is the angle between the hour and the minute hands? ( The answer to this is not zero!)
Answer
7.5 degrees
At 3:15 minute hand will be perfactly horizontal pointing towards 3. Whereas hour hand will be towards 4. Also, hour hand must have covered 1/4 of angle between 3 and 4.
The angle between two adjacent digits is 360/12 = 30 degrees.
Hence 1/4 of it is 7.5 degrees.
==================================
Brain Teaser No : 00170
A series comprising of alphabets contains 13 letters. The first seven letters in the given series are A, E, F, H, I, L, M
Can you find the next two letters?
Answer
The next letters in the series are N, O, R, S, U, X.
The pattern is - letters whose English names (Phonetic Pronunciations) start with vowels.
===============================================
Brain Teaser No : 00180
Which number in the series does not fit in the given series:
1 4 3 16 6 36 7 64 9 100
Answer
This is a series with odd positions containing position number whereas even positions containing square of the position.i.e. even position numbers are 4 16 36 64 100 and odd position numbers are 1 3 5 7 9
Hence, 6 does not fit in the series. It should be 5.
===============================================
Brain Teaser No : 00434
What are the next three numbers in the given series?
1 1 2 1 2 2 3 1 2 2 3 2 3 3 4 1 2 2 3 2 3 3 4 2 3 3 ?
Answer
The next three numbers in the series are 4, 3, 4.
The pattern is - the number of 1's in the binary expansion of the positive integers starting from 1.
Number Binary Equivalent # of 1's
1 1 1
2 10 1
3 11 2
4 100 1
5 101 2
6 110 2
7 111 3
8 1000 1
9 1001 2
10 1010 2
11 1011 3
12 1100 2
13 1101 3
14 1110 3
15 1111 4
16 10000 1
17 10001 2
18 10010 2
19 10011 3
20 10100 2
21 10101 3
22 10110 3
23 10111 4
24 11000 2
25 11001 3
26 11010 3
27 11011 4
28 11100 3
29 11101 4
The other way of looking at it is - break up the series into lines as follow:
1
1 2
1 2 2 3
1 2 2 3 2 3 3 4
1 2 2 3 2 3 3 4 2 3 3 4 3 4 4 5
A new line can be created by writing previous line followed by the previous line with 1 added to each number.
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Brain Teaser No : 00552
A cricket team of 11 players lined up in a straight line to have their photograph. The captain was asked to stand in the center of the line-up.
1) Bharat and Bhavin stood to the right of the captain
2) Two players stood between Bhagat and Bhairav
3) Seven players stood between Bhadrik and Bhanu
4) Bhavesh stood to the right of Bhuvan
5) Bhola and Bhumit stood either side of Bhagat
6) Bhavik and Bhumit stood to the left of the captain
7) Six players stood between Bhavin and Bhagat
8) Two players stood between Bhagat and Bhavik
Who is the captain? Can you tell the positions of all the palyers?
Answer
Players from left to right : Bhavik, (Bhadrik/Bhanu), (Bhola/Bhumit), Bhagat, (Bhola/Bhumit), BHUVAN, Bhairav, (Bharat/Bhavesh), (Bharat/Bhavesh), (Bhadrik/Bhanu), Bhavin
Let's number the positions 1 to 11 from left to right. Hence, the captain is at position 6. Now, looking at the clues 7, 5, 2 and 8 together:
Poistion 1 - Bhavik or Bhairav
Position 3 - Bhumit or Bhola
Position 4 - Bhagat
Position 5 - Bhumit or Bhola
Poistion 7 - Bhavik or Bhairav
Position 11 - Bhavin
From clue (3), the only possible positions for Bhadrik and Bhanu are Position 2 and Position 10.
Now there are 3 positions remaining - 6, 8 and 9 and remaining 3 players are Bhuvan, Bharat and Bhavesh. But from clue (1), Bharat stood to the right of the captain i.e. Bharat must be on position 8 or 9 as position 6 is for the captain. So either Bhuvan or Bhavesh is the captain.
From (4), Bhavesh stood to the right of Bhuvan. Hence, Bhuvan is the captain.
Players from left to right are : Bhavik, (Bhadrik/Bhanu), (Bhola/Bhumit), Bhagat, (Bhola/Bhumit), BHUVAN, Bhairav, (Bharat/Bhavesh), (Bharat/Bhavesh), (Bhadrik/Bhanu), Bhavin.
Thus,
* Bhavik(1), Bhagat(4), Bhuvan(6), Bhairav(7) and Bhavin(11) are the players whose positions are fixed.
* Bhadrik and Bhanu are at position 2 or 10.
* Bhola and Bhumit are at position 3 or 5.
* Bharat and Bhavesh are at position 8 or 9.
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Brain Teaser No : 00854
In the middle of the confounded desert, there is the lost city of "Ash". To reach it, I will have to travel overland by foot from the coast. On a trek like this, each person can only carry enough rations for five days and the farthest we can travel in one day is 30 miles. Also, the city is 120 miles from the starting point.
What I am trying to figure out is the fewest number of persons, including myself, that I will need in our Group so that I can reach the city, stay overnight, and then return to the coast without running out of supplies.
How many persons (including myself) will I need to accomplish this mission?
Answer
Total 4 persons (including you) required.
It is given that each person can only carry enough rations for five days. And there are 4 persons. Hence, total of 20 days rations is available.
1. First Day : 4 days of rations are used up. One person goes back using one day of rations for the return trip. The rations remaining for the further trek is for 15 days.
2. Second Day : The remaining three people use up 3 days of rations. One person goes back using 2 days of rations for the return trip. The rations remaining for the further trek is for 10 days.
3. Third Day : The remaining two people use up 2 days of rations. One person goes back using 3 days of rations for the return trip. The rations remaining for the further trek is for 5 days.
4. Fourth Day : The remaining person uses up one day of rations. He stays overnight. The next day he returns to the coast using 4 days of rations.
Thus, total 4 persons, including you are required.
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Brain Teaser No : 00348
There are 10 statements written on a piece of paper:
1. At least one of statements 9 and 10 is true.
2. This either is the first true or the first false statement.
3. There are three consecutive statements, which are false.
4. The difference between the numbers of the last true and the first true statement divides the number, that is to be found.
5. The sum of the numbers of the true statements is the number, that is to be found.
6. This is not the last true statement.
7. The number of each true statement divides the number, that is to be found.
8. The number that is to be found is the percentage of true statements.
9. The number of divisors of the number, that is to be found, (apart from 1 and itself) is greater than the sum of the numbers of the true statements.
10. There are no three consecutive true statements.
Find the minimal possible number?
Submitted by : Milind Gadagkar
Answer
The numebr is 420.
If statement 6 is false, it creates a paradox. Hence, Statement 6 must be true.
Consider Statement 2:
* If it is true, it must be the first true statement. Otherwise, it creates a paradox.
* If it is false, it must be the second false statement. Otherwise, it creates a paradox.
In both the cases, Statement 1 is false.
As Statement 1 is false, Statement 9 and Statement 10 both are false i.e. there are three consecutive true statements.
1 2 3 4 5 6 7 8 9 10
False - - - - True - - False False
Let\'s assume that Statement 3 is false i.e. there are no three consecutive false statements. It means that Statement 2 and Statement 8 must be true, else there will be three consecutive false statements.
1 2 3 4 5 6 7 8 9 10
False True False - - True - True False False
Also, atleast two of Statements 4, 5 and 7 must be true as there are three consecutive true statements.
According to Statement 8, the number that is to be found is the percentage of true statements. Hence, number is either 50 or 60. Now if Statement 7 is true, then the number of each true statement divides the number, that is to be found. But 7 and 8 do not divide either 50 or 60. Hence, Statement 7 is false which means that Statement 4 and 5 are true. But Statement 5 contradicts the Statement 8. Hence, our assumption that Statement 3 is false is wrong and Statement 3 is true i.e. there are 3 consecutive false statements which means that Statement 8 is false as there is no other possibilities of 3 consecutive false statements.
Also, Statement 7 is true as Statement 6 is not the last true statement.
1 2 3 4 5 6 7 8 9 10
False - True - - True True False False False
According to Statement 7, the number of each true statement divides the number, that is to be found. And according to Statement 5, the sum of the numbers of the true statements is the number, that is to be found. For all possible combinations Statement 5 is false.
There 3 consecutive true statements. Hence, Statement 2 and Statement 4 are true.
1 2 3 4 5 6 7 8 9 10
False True True True False True True False False False
Now, the conditions for the number to be found are:
1. The numebr is divisible by 5 (Statement 4)
2. The numebr is divisible by 2, 3, 4, 6, 7 (Statement 7)
3. The number of divisors of the number, that is to be found, (apart from 1 and itself) is not greater than the sum of the numbers of the true statements. (Statement 9)
The minimum possible number is 420.
The divisors of 420, apart from 1 and itself are 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210. There are total of 22 divisors. Also, the sum of the numbers of the true statements is 22 (2+3+4+6+7=22), which satisfies the third condition.
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Brain Teaser No : 00186
500 men are arranged in an array of 10 rows and 50 columns according to their heights.
Tallest among each row of all are asked to come out. And the shortest among them is A.
Similarly after resuming them to their original positions, the shortest among each column are asked to come out. And the tallest among them is B.
Now who is taller A or B ?
Answer
No one is taller, both are same as A and B are the same person.
As it is mentioned that 500 men are arranged in an array of 10 rows and 50 columns according to their heights. Let's assume that position numbers represent their heights. Hence, the shortest among the 50, 100, 150, ... 450, 500 is person with height 50 i.e. A. Similarly the tallest among 1, 2, 3, 4, 5, ..... 48, 48, 50 is person with height 50 i.e. B
Now, both A and B are the person with height 50. Hence both are same.
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Brain Teaser No : 00021
A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager.
According to his will: First give one coin to manager. 1/5th of the remaining to the elder son. Now give one coin to the manager and 1/5th of the remaining to second son and so on..... After giving coins to 5th son, divided the remaining coins among five daughters equally.
All should get full coins. Find the minimum number of coins he has?
Answer
We tried to find out some simple mathematical method and finally we wrote small C program to find out the answer. The answer is 3121 coins.
Here is the breakup:
First son = 624 coins
Second son = 499 coins
Third son = 399 coins
Forth son = 319 coins
Fifth son = 255 coins
Daughters = 204 each
Manager = 5 coins
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Brain Teaser No : 00302
There are 20 people in your applicant pool, including 5 pairs of identical twins.
If you hire 5 people randomly, what are the chances you will hire at least 1 pair of identical twins? (Needless to say, this could cause trouble ;))
Submitted by : Tim Sanders
Answer
The probability to hire 5 people with at least 1 pair of identical twins is 25.28%
5 people from the 20 people can be hired in 20C5 = 15504 ways.
Now, divide 20 people into two groups of 10 people each :
G1 - with all twins
G2 - with all people other than twins
Let's find out all possible ways to hire 5 people without a single pair of indentical twins.
People from G1 People from G2 No of ways to hire G1 without a single pair of indentical twins No of ways to hire G2 Total ways
0 5 10C0 10C5 252
1 4 10C1 10C4 2100
2 3 10C2 * 8/9 10C3 4800
3 2 10C3 * 8/9 * 6/8 10C2 3600
4 1 10C4 * 8/9 * 6/8 * 4/7 10C1 800
5 0 10C5 * 8/9 * 6/8 * 4/7 * 2/6 10C0 32
Total 11584
Thus, total possible ways to hire 5 people without a single pair of indentical twins = 11584 ways
So, total possible ways to hire 5 people with at least a single pair of indentical twins = 15504 - 11584 = 3920 ways
Hence, the probability to hire 5 people with at least a single pair of indentical twins
= 3920/15504
= 245/969
= 0.2528
= 25.28%
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Brain Teaser No : 00408
A woman took a certain number of eggs to the market and sold some of them.
The next day, through the industry of her hens, the number left over had been doubled, and she sold the same number as the previous day.
On the third day the new remainder was tripled, and she sold the same number as before.
On the fourth day the remainder was quadrupled, and her sales the same as before.
On the fifth day what had been left over were quintupled, yet she sold exactly the same as on all the previous occasions and so disposed of her entire stock.
What is the smallest number of eggs she could have taken to market the first day, and how many did she sell daily? Note that the answer is not zero.
Submitted by : Dan Allen
Answer
She took 103 eggs to market on the first day and sold 60 eggs everyday.
Let's assume that she had N eggs on the first day and she sold X eggs everyday. Putting down the given information in the table as follow.
Days Eggs at the start of the day Eggs Sold Eggs Remaining
Day 1 N X N-X
Day 2 2N-2X X 2N-3X
Day 3 6N-9X X 6N-10X
Day 4 24N-40X X 24N-41X
Day 5 120N-205X X 120N-206X
It is given that she disposed of her entire stock on the fifth day. But from the table above, the number of eggs remaining are (120N-206X). Hence,
120N - 206X = 0
120N = 206X
60N = 103X
The smallest value of N and X must be 103 and 60 respectively. Hence, she took 103 eggs to market on the first day and sold 60 eggs everyday.
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Brain Teaser No : 00483
Four couples are going to the movie. Each row holds eight seats. Betty and Jim don't want to sit next to Alice and Tom. Alice and Tom don't want to sit next to Gertrude and Bill. On the otherhand, Sally and Bob don't want to sit next to Betty and Jim.
How can the couples arrange themselves in a row so that they all sit where they would like?
Submitted by : Tara Smith
Answer
From the given data, it can be inferred that:
(Sally & Bob) NOT (Betty & Jim) NOT (Alice & Tom) NOT (Gertrude & Bill)
(A) NOT (B) means A and B can not seat next to each other.
Now, it is obvious that (Betty & Jim) and (Alice & Tom) will occupy the corner seats as both of them can have only one neighbour. Therefore,
(Gertrude & Bill) will seat next to (Betty & Jim)
(Sally & Bob) will seat next to (Gertrude & Bill)
(Alice & Tom) will seat next to (Sally & Bob)
Thus, there are two possible arrangements - a mirror images of each other.
1. (Betty & Jim) - (Gertrude & Bill) - (Sally & Bob) - (Alice & Tom)
2. (Alice & Tom) - (Sally & Bob) - (Gertrude & Bill) - (Betty & Jim)
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Brain Teaser No : 00528
Substitute digits for the letters to make the following relation true.
N E V E R
L E A V E
+ M E
-----------------
A L O N E
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter M, no other letter can be 3 and all other M in the puzzle must be 3.
Answer
A tough one!!!
Since R + E + E = 10 + E, it is clear that R + E = 10 and neither R nor E is equal to 0 or 5. This is the only entry point to
solve it. Now use trial-n-error method.
N E V E R 2 1 4 1 9
L E A V E 3 1 5 4 1
+ M E + 6 1
----------------- -----------------
A L O N E 5 3 0 2 1
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Brain Teaser No : 00118
Shahrukh speaks truth only in the morning and lies in the afternoon, whereas Salman speaks truth only in the afternoon and lies in the morning.
A says that B is Shahrukh.
Is it morning or afternoon and who is A - Shahrukh or Salman?
Answer
It is Afternoon and A can be Salman or Shahrukh. If A is Salman, he is speaking truth. If A is Shahrukh, he is lying.
Want to confirm it? Consider following 4 possible answers and check for its truthness individually.
1. It is Morning and A is Shahrukh
2. It is Morning and A is Salman
3. It is Afternoon and A is Shahrukh
4. It is Afternoon and A is Salman
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Brain Teaser No : 00161
Mr. D'souza has bought four cars - Merc, Honda, Ford, Zen - as presents for his sons' birthdays, all of which are next week. Given the following information, what will each son get?
Alan will not get the Honda unless Barry gets the Merc and Denzil gets the Ford. Barry will not get the Ford unless Carl gets the Zen and Alan gets the Merc. Denzil will not get the Zen unless Alan gets the Honda and Barry gets the Merc. Alan will not get the Merc unless Carl gets the Zen and Denzil gets the Ford. Barry will not get the Merc unless Alan gets the Zen and Denzil gets the Ford. Alan will not get the Zen unless Barry gets the Honda and Carl gets the Merc. Carl will not get the Zen unless Barry gets the Honda and Alan gets the Ford. Alan will not get the Ford unless Barry gets the Zen and Denzil gets the Honda. Carl will not get the Merc unless Denzil gets the Honda.
Answer
Let's put given 9 information in a table. The person in Bold Font will not get the corresponding car unless the persons in Normal Font get the corresponding cars. Also, the person will Italics will get the remaining car.
Merc Honda Ford Zen
1 Barry Alan Denzil Carl
2 Alan Denzil Barry Carl
3 Barry Alan Carl Denzil
4 Alan Barry Denzil Carl
5 Barry Carl Denzil Alan
6 Carl Barry Denzil Alan
7 Denzil Barry Alan Carl
8 Carl Denzil Alan Barry
9 Carl Denzil ? ?
Now, let's assume that Alan gets the Merc. Then from (4), Barry gets the Honda, Denzil gets the Ford and Carl gets the Zen. But from (7), Carl will not get the Zen unless Barry gets the Honda and Alan gets the Ford. Thus, it contradicts the original assumption. Hence, Alan will not get the Merc.
Let's assume that Alan gets the Honda. Then from (1), Barry gets the Merc, Denzil gets the Ford and Carl gets the Zen. But from (5) or from (7), it contradicts the original assumption. Hence, Alan will not get the Honda.
Let's assume that Alan gets the Ford. Then from (8), Carl gets the Merc, Denzil gets the Ford and Barry gets the Zen - which does not contradict any of the statement.
Similaly, you can assume that Alan gets the Zen. (which is contradictory to (9))
Hence, Alan gets the Ford, Barry gets the Zen, Carl gets the Merc and Denzil gets the Honda.
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Brain Teaser No : 00110
In a certain game, if 2 wixsomes are worth 3 changs, and 4 changs are worth 1 plut, then 6 plutes are worth how many wixsomes?
Answer
It is given that
2 wixsomes = 3 changs
8 wixsomes = 12 changs ----- (I)
Also, given that
4 changs = 1 plut
12 changs = 3 plutes
8 wixsomes = 3 plutes ----- From (I)
Therefore,
6 plutes = 16 wixsomes
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Brain Teaser No : 00267
A stick of length 1 is divided randomly into 3 parts.
What is the probability that a triangle can be made with those three parts?
Answer
The probability, that a triangle can be made by randomly dividing a stick of length 1 into 3 parts, is 25%
A triangle can be made, if and only if, sum of two sides is greater than the third side. Thus,
X1 < x3 =" 1" is =" (1/2)" is =" (1/2)" is =" (1/2)" made =" (1/4)" made =" 1" is =" 1" 9="11" 6="9" 12="14" 8="11" 6="10" 12="14" 8="11" 6="10" 15="17" 10="13" 6="11" 15="17" 10=" 13" 6="11" 21="23" 14="17" 7="13" 26="28" 13="17" 30="32" 20="23" 15="19" 12="17" 10="16" 33="35" 22="25" 11="17" 35="37" 14="19" 10="17" 36="38" 24="27" 18="22" 12="18" 9="17" 40 =" 20" 40 =" 10" 40 =" 5" 40 =" 4" 40 =" 1" to =" 0.5" 025 =" 1" are =" (" 22770 =" 22935" is =" (Total" 9="18:" 8="9" n =" any" n="369)" d =" the" n="369" d="3)" p =" is" n="369" d="3" n="369" d="3," p="1001001" p="369369369" n="111." d="3" p="1001001" p="111111111" n="111111111." d="9" p="1000000001000000001" p="111111111..." n="1111111..." n="1111111..." number =" 29" number =" 2" 9 =" 11" number =" (11)" 1 =" 13" number =" (13)" 3 =" 17" number =" (17)" 7 =" 25" number =" (25)" 5 =" 32" number =" (32)" 2 =" 37" number =" (37)" 7 =" 47" number =" (47)" 7 =" 58" m="1." s="9" m="1." o="0," m="1," y="2," e="5," n="6," d="7," r="8," s="9" 2 ="=" are =" 11" 21 =" 11" 21 =" 192" directions =" 1/2" r =" (-1/4)" directions =" 1" r =" (-1/4)" 0 ="=" 2 =" C" 15 =" C" f =" 16" c =" 47." son ="=" 64p2 =" 64*63" bishop =" 64*14" rook =" 28*7" 13 =" 560" is =" (896" 4032 =" 13/36" 3611 ="=" a="1," car="CAR" f="0," a="F" r="F" i="2," yyau="T," r="3," ilyi="YYI," l="4," ilyi="YYI" i="2" y="5," 4="24Y2" c="6," 4="2452" e="9," c="R" u="7" t="8" 8 ="=" b="C," c="A" b="C," a =" 1," b =" 2," c =" 3," d =" 4" b =" C" 2 =" 3" c =" A" 3 =" 1" b =" C" 2 =" 3" f =" J" 6 =" 10" 12480 =" 26N2" 12480 =" 0" n="24." kg ="=" 100 =" 19%" is =" PI" 7 =" 3.14159265" 7 =" 21.99115" y =" NLY" h="0" h =" L" p =" 2N" n =" N" y =" P" l =" p" n="1," p="2," y="5," l="7" e="9." l="8" e="10" y="5," n="1," p="2," l="7," e="9," h="0" ay="PNH," f="6" a="3." 0 ="=" number =" 0!" number =" 1!" number =" 2!" number =" 3!" number =" 4!" number =" 5!" 120 =" 20" number =" 6!" 720 =" 20" number =" 7!" 5040 =" 40" number =" 8!" 40320 =" 20" number =" 9!" 362880 =" 80" number =" 10!" 3628800 =" 00" number =" 11!" 39916800 =" 00" 11131221133112132113212221 ="=" x =" 120" x =" 240" x =" 240" x =" 21.8182" x =" 21" x =" 5*X" 6 =" 0" 6 ="=" boys =" 12" girls =" 5" m =" 60" 14 =" 60" 6m =" 46" m2 =" 60" 15m =" 60" 8m =" 60" m2 =" 65" 14m =" 65" 8m =" 65" m2 =" 72" 14m =" 72" 8m =" 72" m =" 9" 36 =" 38" 18 =" 21" 12 =" 16" 9 =" 14" 6 =" 13" 9 =" 13" 6 =" 11" 4 =" 10" d="12," 10="25," 19="25" b="3," 28 =" 25," sam =" 41," mala =" 37," 3 =" one" 9 =" one" 27 =" one" 2 =" one" 0 =" zEro" 4 =" Four" 8 =" eiGht" 3 =" tHree" 5 =" fIve" hand =" 180" 11x =" 30" x =" 30/11" are =" 2" 11 =" 60/11" is =" 4" seconds ="=" burnt =" XL/6" burnt =" XL/4" remaining =" L" remaining =" L" 6 =" (4" x =" 12" 2x =" 6" x =" 3" in =" (" 50 =" 18250." oc2 =" OD2" oc2 =" 202" oc =" 28.28427" cx =" 20" ox =" OC" ox =" 28.28427" ox =" 8.28427" op2 =" OQ2" op2 =" (3.5)2" op =" 4.94974" py =" 3.5" oy =" OP" oy =" 4.94974" oy =" 8.44974"> OX i.e. smaller sphere requires more space than the space available. Hence, smaller sphere of 7 cms diameter can not pass through the space between the big sphere, the wall and the floor.
The puzzle can be solved by another method.
Draw a line tangent to the big sphere at the point X such that X is the closest point to the origin O on sphere. The tanget will cut X and Y axes at A and B respectively such that OA=OB. [See Fig III] From above, OX=8.28427 cms.
From the right angle triangle OAB, we can deduct that
OA = OB = 11.71572 cms
AB = 16.56854 cms
Now, the diameter of the inscribed circle of right angle triangle is given by d = a + b - c where a <= b < is =" OA" ab =" 11.71572" 56854 =" 6.86291" first =" 5" second =" 6" third =" 5" fourth =" 6" fifth =" 5" sixth =" 5" seventh =" 7" eighth =" 6" ninth =" 5" tenth =" 5" number =" 2" one =" 3" number =" 6" one =" 7" number =" 62" number =" 63" a =" 1/51" b =" 2/53" 1 =" (1/51)" a =" 50/51" b =" 1/53" 2 =" (50/51)" is =" 2" 2703 =" 0.0192378" 16p16 =" 16!" 8p8 =" 8!" 2p2 =" 2!" is =" (16!)" 800 ="=" mony =" 500-X" tv =" 800-X" tv =" 1000-X" plus =" 1500" x =" 200" mony =" 2000" x =" 500" tv =" 2500" x =" 700" 3700 =" 4000" x =" 300" s="1," i="2," l="3," a="4," n="5," e="6" d="9" 2 =" 2^1" 11 =" 2^1" 75 =" 2^1" 700 =" 2^1" 8476 =" 2^1" 126125 =" 2^1" 2223277 =" 2^1" 45269998 =" 2^1" 8 ="=" p =" PI" every =" (12" minutes =" 65.45" minutes =" 65" 38 =" 65" a="1," b="2," c="3," d="4" number =" 15(O)" number =" 20(T)" number =" 20(T)" number =" 6(F)" number =" 6(F)" number =" 19(S)" number =" 19(S)" number =" 5(E)" number =" 14(N)" 42 ="=" plane =" 10" plane =" 180" started =" 20" point =" 180" 20 =" 200" miles ="=" y ="=" 1000 =" 1" 1000 =" 1001" 1000 =" 1" 1000 =" 1000" x="56" y="72" number =" 1" 2 =" 2" number =" 2" 3 =" 6" number =" 3" 4 =" 12" number =" 4" 5 =" 20" number =" 5" 6 =" 30" number =" 6" 7 =" 42" number =" 7" 8 =" 56" number =" 8" 9 =" 72" number =" 2" number =" 2" 4 =" 6" number =" 6" 6 =" 12" number =" 12" 8 =" 20" number =" 20" 10 =" 30" number =" 30" 12 =" 42" number =" 42" 14 =" 56" number =" 56" 16 =" 72" g="0," h="1," y="2," t="3," e="4," i="5," w="6," f="7," n="8," o="9" e =" T" 2y =" Y" 2 ="=" is =" 41664" favourables =" 2" 8c3 =" 2" 56 =" 112" is =" 112" 41664 =" 1" 372 =" 0.002688" t =" N(N-1)" 46 =" (N+X)(N+X-1)" 46 =" (N+X)(N+X-1)" 46 =" N2" 46 =" 2NX" 46 =" (2N" 46 =" 0" 1 =" 45" 2n =" 46" n =" 23" x =" 1" 1 =" 21" 2n =" 22" n =" 11" x =" 2" n =" 16," 16 =" 10" 15 =" 11" 14 =" 12" 13 =" 13" 12 =" 14" 11 =" 15" 10 =" 16" 9 =" 17" 8 =" 20" 7 =" 22" 6 =" 24" 5 =" 31" 4 =" 100" 3 =" 121" 2 =" 10000" 10000 ="=" glory ="=" 2m =" 3B" m =" B" m =" B" 2m =" 3B" 2 =" 3B" k =" B" b =" 9" b =" 9" b =" 3" kapil="2," madanlal="4," binni="3," runout="1" kapil="1," madanlal="3," binni="2," runout="1" kapil="0," madanlal="2," binni="1," runout="1" school =" B" school =" 2*B" college =" (3/4)(2*B)" graduation =" [(7/3)B]" 9 ="=" a="2," b="1," c="9," d="4," e="3," f="8," g="6," h="5," i="7" ghi =" 9" def =" 6" abc =" 3" a="2," b="1," c="9," d="4," e="3," f="8," g="6," h="5," i="7" 9 ="=" 4 =" 12" 6 =" 32" 8 =" 66" 10 =" ??" 80 ="=" 9x =" X" 8y =" 10X" 4y =" 5X" x="4," y="5" 1 =" 720" x =" (1/6)" remaining ="=" 120 =" 72" 120 =" 80" 48 =" 32" 32 =" 40" bangles ="=" 2 =" 2^1" 12 =" 2^2" 360 =" 2^3" 75600 =" 2^4" 174636000 =" 2^5" 5244319080000 =" 2^6" x =" N2" x2 =" N2" 2x2 =" N2" x2 =" (N2" x2 =" N(N+1)/2" n =" 8," x =" 6" n =" 49," x =" 35" n =" 288," x =" 204" n =" 1681," x =" 1189" n =" 9800," x =" 6930" truth =""> today is Thursday
Assume that Prof. Ahmad is lying => today is Monday
Similarly, Assume Prof. Joshi is telling truth => today is Sunday
Assume that Prof. Joshi is lying => today is Thrusday.
Hence, today is Thrusday, Prof. Ahmad is telling truth and Prof. Joshi is lying.
Teaser 2 :
Assume that First Prof. is telling truth => Thursday, Friday, Saturday or Sunday
Assume that First Prof. is lying => Thursday, Friday or Saturday
Similarly, Assume Second Prof. is telling truth => Monday, Tuesday, Wednesday or Sunday
Assume that Second Prof. is lying => Monday, Tuesday, Wednesday
The only possibility is Sunday and both are telling truth.
Teaser 3 :
A simple one. First Prof. says - "I lie on Sunday" which is false as both the Prof. tell truth on sunday. It means the first statement made by the First Prof. is also false. It means the First Prof. tells truth on Saturday. Hence First Prof. is Prof. Ahmad and he is lying. It means that today is either Monday, Tuesday or Wednesday.
It is clear that Second Prof. is Prof. Joshi.
Assume that he is telling truth => today is Wednesday
Assume that he is lying => today is Saturday.
Hence, today is Wednesday !!!
=======================================
Brain Teaser No : 00088
Find the values of each of the alphabets.
N O O N
S O O N
+ M O O N
----------
J U N E
Answer
Using trial and error. There are 2 solutions to it and may be more.
2 4 4 2
1 4 4 2
+ 5 4 4 2
----------
9 3 2 6
4 1 1 4
5 1 1 4
+ 0 1 1 4
----------
9 3 4 2
=================================
Brain Teaser No : 00252
A man received a cheque. The rupees has been transposed for paise and vice versa. After spending 5 rupees 42 paise, he discovered that he now had exactly six times the value of the correct cheque amount.
What amount should he have received?
Answer
He received 6 rupees and 44 paise.
Let's assume that he received a cheque of X rupees and Y paise i.e. (100X + Y)
The amount received by him = 100Y + X
After spending 5 rupees 42 paise, the remaining amount is (100Y + X - 542) which is 6 times the original amount. Thus,
(100Y + X - 542) = 6*(100X + Y)
100Y + X - 542 = 600X + 6Y
94Y = 599X + 542
Using trial-n-error, we get X=6 and Y=44
Hence, he should have received 6 rupees and 44 paise.
====================================
Brain Teaser No : 00024
A person wanted to withdraw X rupees and Y paise from the bank. But cashier made a mistake and gave him Y rupees and X paise. Neither the person nor the cashier noticed that.
After spending 20 paise, the person counts the money. And to his surprise, he has double the amount he wanted to withdraw.
Find X and Y. (1 Rupee = 100 Paise)
Answer
As given, the person wanted to withdraw 100X + Y paise.
But he got 100Y + X paise.
After spending 20 paise, he has double the amount he wanted to withdraw. Hence, the equation is
2 * (100X + Y) = 100Y + X - 20
200X + 2Y = 100Y +X - 20
199X - 98Y = -20
98Y - 199X = 20
Now, we got one equation; but there are 2 variables. We have to apply little bit of logic over here. We know that if we interchange X & Y, amount gets double. So Y should be twice of X or one more than twice of X i.e. Y = 2X or Y = 2X+1
Case I : Y=2X
Solving two equations simultaneously
98Y - 199X = 20
Y - 2X = 0
We get X = - 20/3 & Y = - 40/2
Case II : Y=2X+1
Solving two equations simultaneously
98Y - 199X = 20
Y - 2X = 1
We get X = 26 & Y = 53
Now, its obvious that he wanted to withdraw Rs. 26.53
======================================================
Brain Teaser No : 00158
Consider the sum: ABC + DEF + GHI = JJJ
If different letters represent different digits, and there are no leading zeros, what does J represent?
Answer
The value of J must be 9.
Since there are no leading zeros, J must be 7, 8, or 9. (JJJ = ABC + DEF + GHI = 14? + 25? + 36? = 7??)
Now, the remainder left after dividing any number by 9 is the same as the remainder left after dividing the sum of the digits of that number by 9. Also, note that 0 + 1 + ... + 9 has a remainder of 0 after dividing by 9 and JJJ has a remainder of 0, 3, or 6.
The number 9 is the only number from 7, 8 and 9 that leaves a remainder of 0, 3, or 6 if you remove it from the sum 0 + 1 + ... + 9. Hence, it follows that J must be 9.
===================================================
Brain Teaser No : 00323
Find next two numbers in the series :
100, 365, 24, 60, ?, ?
Answer
The next two numbers are 60 and 1000.
The pattern is breaking down the time from Century to miliseconds.
There are 100 years in a century.
There are 365 days in a year.
There are 24 hours in a day.
There are 60 minutes in an hour.
There are 60 seconds in a minute.
There are 1000 miliseconds in a second.
Hence, the sequence is : 100, 365, 24, 60, 60, 1000
======================================================
Brain Teaser No : 00031
Find sum of digits of D.
Let
A= 19991999
B = sum of digits of A
C = sum of digits of B
D = sum of digits of C
(HINT : A = B = C = D (mod 9))
Answer
The sum of the digits od D is 1.
Let E = sum of digits of D.
It follows from the hint that A = E (mod 9)
Consider,
A = 19991999
< 20002000 =" 22000" 10002000 =" 1024200" 106000 =" 106800" 9 =" 61200" 9 =" 45" 9 =" 18" 1999 =" 1" 19991999 =" 1" e="1." 3 =" 4" 6 =" 8" 9 =" 12" boys =" 90" girls =" 81" class =" 84" g =" 84*(B+G)" 81g =" 84B" 6b =" 3G" 2b =" G"> Amar-6, Akbar-4, Anthony-9
2> Amar-6, Akbar-8, Anthony-5
In both the cases, we know that Amar have 6 children and hence Amar is the speaker.
============================================
Brain Teaser No : 00089
There are 20 poles with a constant distance between each pole. A car takes 24 second to reach the 12th pole.
How much will it take to reach the last pole.
Answer
The car will take 41.45 seconds to reach the last pole.
Let the distance between two poles is X.
The car takes 24 seconds to reach the 12th pole. It means it travels distance of 11X in 24 seconds.
To reach the 20th pole car has to travel 19X. So time taken to reach there is
= (19X * 24) / 11X
= (19 * 24) / 11
= 41.45 seconds
============================================
Brain Teaser No : 00032
Find the smallest number N which has the following properties:
1. its decimal representation has 6 as the last digit.
2. If the last digit 6 is erased and placed in front of the remaining digits, the resulting number is four times as great as the original number N.
Answer
The smallest such number is 153846.
Assume that the number N is
N = BnBn-1Bn-2 ... B3B26
as its given that 6 is the last digit.
Now after erasing 6 and putting it in front of the remaining digits, we get
Nnew = 6BnBn-1Bn-2 ... B3B2
Also given that Nnew is 4 times the N. Also note that the last digit Nnew is second last digit of N and so on. The required result is
BnBn-1Bn-2 ... B3B26
X 4
--------------------
6BnBn-1Bn-2 ... B3B2
So start multiplying and put nth digit of Nnew to (n + 1)th digit of N and you will get result as
1 5 3 8 4 6
X 4
---------------
6 1 5 3 8 4
Hence, the number is 153846
=======================================
Brain Teaser No : 00167
What are the chances that at least two out of a group of fifty people share the same birthday?
Submitted by : Erin
Answer
The probability of atleast two out of a group of 50 people share the same birthday is 97%
Probability of atleast two share the same birthday = 1 - probability of all 50 have different birthdays
Probability of all 50 have different birthday
= 365/365 * 364/365 * 363/365 * ... * 317/365 * 316/365
= (365 * 364 * 363 * 362 * ... * 317 * 316)/36550
= 0.0296264
Probability of atleast two share the same birthday
= 1 - 0.0296264
= 0.9703735
= 97% approx.
Thus, the probability of atleast two out of a group of 50 people share the same birthday is 97%
This explains why in a school/college with classrooms of 50 students, there are at least two students with a birthday on the same day of the year. Also, if there are 23 people in the room, then there are 50% chances that atleast two of them have a birthday on the same day of the year!!!
===============================
Brain Teaser No : 00168
Chintu put some Black marbles and some White marbles into a jar. He then asked his brother Pintu to take out a marble. Pintu drew out a Black marble. Chintu asked Pintu to draw out another marble, and again he drew out a Black marble.
Pintu thought there must be more Black marbles than White marbles in the jar and asked Chintu, "I wonder what is the probability of me drawing a Black marble on a third try?"
Chintu replied, "Exactly 9/10 of what it was of drawing a Black marble on your first draw."
Can you help Pintu to determine how many marbles of each colour had been in the jar in the beginning? Give the minimal possible answer. Also, Pintu knew that there were at least seven marbles in the jar in the beginning.
Answer
There were 8 Black marbles and 4 White marbles in the jar.
Let's assume that initially there are total N marbles. Also, B and W are the number of Black and White marbles respectively. Thus, N = B + W
The probability of drawing a Black marble on the first draw = B/(B+W)
Similarly, after drawing 2 Black marbles, the probability of drawing a Black marble on the third draw = (B-2)/(B+W-2)
Chintu said that the probability of drawing a Black marble on third draw (after drawing Black marbles on first two draws) is exactly 9/10 of what it was of drawing a Black marble on first draw.
(B - 2) / (B + W - 2) = (9 / 10) * B / (B + W)
10 * (B + W) * (B - 2) = 9 * B * (B + W - 2)
10B2 - 20B + 10BW - 20W = 9B2 + 9BW - 18B
B2 - 2B + BW - 20W = 0
We know that N = B + W, hence substitute W = N - B
B2 - 2B + B(N - B) - 20(N - B) = 0
B2 - 2B + BN - B2 - 20N + 20B = 0
18B + BN - 20N = 0
B(18 + N) = 20N
B = 20N / (18 + N)
Now, we know that the value of N is at least 7. Hence, using trial-n-error on the equation, the minimal value of N must be 12 so that B=8 and W=4.
Hence, initially there were 8 Black marbles and 4 White marbles in the jar.
==============================================
Brain Teaser No : 00669
Anna, her brother - Andre, her daughter - Ami, and her son, Adam are tennis players. As a game of doubles
1. Anna's brother is directly across the net from Ami.
2. Adam is diagonally across the net from the worst player's sibling.
3. The best player and the worst player are on the same side of the
net.
Who is the best player?
Answer
The best player is Andre.
Find out all possible arrangement such that no condition is contradicted.
From (1), there are two possible arrangements. Discarding two arrangements which are identical to following two.
Andre Anna Andre Adam
------------------ AND ------------------
Ami Adam Ami Anna
(I) (II)
From (2), Anna is the worst player in Case I and Adam is the worst player in Case II.
From (3), Andre is the best player in both the cases.
Hence, the best player is Andre.
========================================
Brain Teaser No : 00675
Elizabeth is engaged.
* Her fiancÃ© is either Arthur, Barry, Colin or Derek.
* Each of the four men and Elizabeth either always tells the truth or always lies.
* Arthur says: "Exactly one of us four men always tells the truth."
* Barry says: "Exactly one of us four men always tells the lies."
* Colin says: "Arthur or Barry is Elizabeth's fiancÃ©."
* Elizabeth says: "My fiancÃ© and I either both always tell truth or both always lie."
Who is Elizabeth's fiancÃ©?
Answer
Barry is Elizabeth's fiancÃ©.
Analyse the statements made by Colin and Elizabeth first.
From (6), if Elizabeth always tells the truth, then her fiancÃ© always tells the truth and if Elizabeth always lies, then her fiancÃ© always tells the truth. Hence, Elizabeth's fiancÃ© always tells the truth.
Let's assume that statement made by Colin (5) is false. Then Colin lied and Derek is the truth-telling fiancÃ©. But then statement made by Arthur can not be true (if true, then there are 2 truth-tellers which contradicts itself). And it can not be false either (if false, then there are at least 2 truth-tellers, which makes Barry's statement false and
hence there is just a one truth-teller i.e. Derek, again contradiction!!!). Hence statement made by Arthur contradicts itself. So the statement made by Colin is true i.e. Arthur or Barry is Elizabeth's fiancÃ©.
As statement made by Colin is true, the statement made by Arthur is false. Then because Elizabeth's fiancÃ© always tells the truth, Barry is Elizabeth's fiancÃ©. Then the statement made by Barry is true and thus Derek always tells the truth.
Thus, Barry is Elizabeth's fiancÃ©.
=====================================
Brain Teaser No : 00680
A group of fewer than 10 girls found a number of gold-coins which they were able to divide equally among them.
After this division had been done, Lalita - one of the girls, suggested that it would be more equitable to divide the gold-coins by families rather than by individuals. Among the them, there were two groups with two sisters, of course Lalita was not in either group. The rest of the girls were unrelated to each other. A re-division by families would have meant that the gold-coins per family were 5 more than the gold-coins per girl.
The girls argued among themselves over this way of dividing the gold-coins. Before a final decision is made, Ash - one of the girls, decided that she did not want any gold-coins. Her share was equally divided (without breaking/cutting any gold-coin) among the other girls.
Finally, Lalita decided to withdraw her suggestion of dividing the gold-coins by families.
How many girls were there and how many gold-coins did each girl end up with?
Answer
There were total 6 girls. Each end up with 12 gold-coins.
The number of gold-coins is evenly divisible by the number of girls as well as the number of families.
Let's assume that N is the number of gold-coins each girl received initially and G is the total number of girls.
Then, total number of gold-coins = NG
If the gold-coins had been divided by families rather than by individuals, the number of recipients would be (G - 2) and each share would be (N + 5).
Again, total number of gold-coins = (N + 5)(G - 2)
But, the total number of the gold-coins is the same.
NG = (N + 5)(G - 2)
NG = NG -2N +5G -10
2N = 5G -10
N = (5/2)G - 5
Now, N and G are the positive integers and also total number of gold-coins must be divisible by G, (G-1) and (G-2). This is because initially there were G girls; then since it was divided family wise, the total number of units, the coins were to be divided would be (G-2) (as two groups had two sisters, so two girls got combined as one group, one per group); and after Ash backed out, there were (G-1) girls.
Now trying different EVEN values for G, starting with 2; there were total 6 girls and 60 gold-coins. The gold-coins are divided among 5 girls and hence each girl ends up with 12 gold-coins.
==========================================
Brain Teaser No : 00150
What are the next two letters in this sequence?
A, B, H, F, M, C, I, G, T, D, O, ?, ?
Answer
The next letters in the sequence are J, U, E, X etc.
A is the first letter of the alphabet with symmetry about the vertical axis. B is the first letter of the alphabet with symmetry about the horizontal axis. H is the first letter of the alphabet with symmetry about both, the vertical axis and the horizontal axis. F is the first letter of the alphabet with no symmetry.
The sequence then repeats with the second letter of the alphabet with symmetry about the vertical axis, the horizontal axis, both the axes and no axes i.e. M, C, I and G
The third letters of the alphabet are T, D, O and J.
The fourth letters of the alphabet are U, E, X and L.
==============================================
Brain Teaser No : 00160
A family photo contained:
one grandfather, one grandmother;
two fathers, two mothers;
six children, four grandchildren;
two brothers, two sisters;
three sons, three daughters;
one father-in-law, one mother-in-law, one daughter-in-law, one son-in-law
30 people you may think, but no, what is the least number of people here?
Answer
There are total 8 people.
Four children - 2 boys and 2 girls, their mother and father, and one set of grandparents - EITHER mother's mother and father's father OR mother's father and father's mother.
==========================================
Brain Teaser No : 00263
There are 4 novels - Thriller, Mystery, Romance and Science Fiction - writen by Ambrose, Richards, Hooper and Walsh, and published by Alpha, Beta, Gamma and Theta not in necessarily in the same order.
* The book by Ambrose is published by Theta.
* The Thriller is published by Alpha.
* The Science Fiction novel is by Hooper and is not published by Gamma.
* The Romance novel is by Walsh.
Who are the Author and the Publisher of each novels?
Answer
(Thriller-Richards-Alpha), (Mystery-Ambrose-Theta), (Romance-Walsh-Gamma), (Science Fiction-Hooper-Beta)
From (1), (2) and (3) the Science Fiction novel is by Hooper and published by Beta.
From (4) the Romance novel is by Walsh and published by Gamma.
Now it is obvious that the Mystery is published by Theta and written by Ambrose. And the Thriller is published by Alpha and written by Richards.
Novel Type Author Publisher
Thriller Richards Alpha
Mystery Ambrose Theta
Romance Walsh Gamma
Science Fiction Hooper Beta
=======================================
Brain Teaser No : 00103
Three friends divided some bullets equally. After all of them shot 4 bullets the total number of bullets remaining is equal to the bullets each had after division. Find the original number divided.
Answer
18
Assume that initial there were 3*X bullets.
So they got X bullets each after division.
All of them shot 4 bullets. So now they have (X - 4) bullets each.
But it is given that,after they shot 4 bullets each, total number of bullets remaining is equal to the bullets each had after division i.e. X
Therefore, the equation is
3 * (X - 4) = X
3 * X - 12 = X
2 * X = 12
X = 6
Therefore the total bullets before division is = 3 * X = 18
====================================
Brain Teaser No : 00278
What are the next two in the series?
st, nd, rd, th, th, ..., ...
Submitted by : Christopher Colon
Answer
The answer is th and th
The pattern is the suffix of each number when counted i.e. 1st, 2nd, 3rd, 4th, 5th, 6th, 7th and so on
====================================
Brain Teaser No : 00288
Five friends with surname Batliwala, Pocketwala, Talawala, Chunawala and Natakwala have their first name and middle name as follow.
1. Four of them have a first and middle name of Paresh.
2. Three of them have a first and middle name of Kamlesh.
3. Two of them have a first and middle name of Naresh.
4. One of them have a first and middle name of Elesh.
5. Pocketwala and Talawala, either both are named Kamlesh or neither is named Kamlesh.
6. Either Batliwala and Pocketwala both are named Naresh or Talawala and Chunawala both are named Naresh.
7. Chunawala and Natakwala are not both named Paresh.
Who is named Elesh?
Answer
Pocketwala is named Elesh.
From (1) and (7), it is clear that Batliwala, Pocketwala and Talawala are named Paresh.
From (6) and (5), if Pocketwala or Talawala both are named Kamlesh, then either of them will have three names i.e. Paresh, Kamlesh and Naresh. Hence, Pocketwala and Talawala both are not named Kamlesh. It means that Batliwala, Chunawala and Natakwala are named Kamlesh.
Now it is clear that Talawala and Chunawala are named Naresh. Also, Pocketwala is named Elesh.
=========================================
Brain Teaser No : 00414
Sarika multiplied 414 by certain number and obtained 69958 as the answer. But she found that there is some error in the answer - both the 9s in the answer are wrong and all the other digits are correct.
Can you find the correct answer?
Answer
The correct answer is 60858.
If you divide 69958 by 414, you will get 168.98. Hence, assume some three digit number and multiply it by 414 and use 6**58 as the answer.
Assume three digit number such that
* * *
4 1 4
-------------
* * *
* * * 0
* * * 0 0
-------------
6 * * 5 8
It is obvious that the last digit of the assumed number must be 7.
* * 7
4 1 4
-------------
* * 8
* * 7 0
* * 8 0 0
-------------
6 * * 5 8
Now, the second last digit of the assumed number must be 4 or 9. Also, the first digit of the assumed number must be 1 as the first digit of the answer is 6. Using trial and error for above two conditions, the answer is
1 4 7
4 1 4
-------------
5 8 8
1 4 7 0
5 8 8 0 0
-------------
6 0 8 5 8
===========================================
Brain Teaser No : 00422
What are the next three numbers in the given series?
0 1 1 2 1 2 1 3 2 2 1 3 1 2 2 4 1 3 1 3 2 2 1 ? ? ?
Answer
The next three numbers are 4, 2 and 2
The pattern is - the number of factors in prime factorization of positive integers. Note that all prime number positions are 1 in the given series.
Number Prime Factorization Factors in Prime Factorization
1 1 0
2 2 1
3 3 1
4 2*2 2
5 5 1
6 2*3 2
7 7 1
8 2*2*2 3
9 3*3 2
10 2*5 2
Thus, the next few numbers in the given series are:
4 2 2 3 3 1 3 1 5 2 2 2 4 1 2 2 4 1 3 1 3 3 2 1 5 2 3 2 3 1 4 2 4 2 2 1 ...
Note that 1 is neither a Prime number nor a Composite number.
===========================================================
Brain Teaser No : 00464
Find the next two numbers in the series:
1, 8, 11, 18, 80, 81, _, _
Answer
The next two numbers are 82 and 83.
The pattern is : the list of positive integers beginning with a VOWEL.
1(One), 8(Eight), 11(Eleven), 18(Eighteen), 80(Eighty), 81(Eighty-one)
Hence, the next numbers are 82(Eighty-two), 83(Eighty-three), 84(Eighty-four), .....
It is not a series comprise of 0, 1 and 8. If so, 10 must be there.
===================================
Brain Teaser No : 00154
There are 4 mugs placed upturned on the table. Each mug have the same number of marbles and a statement about the number of marbles in it. The statements are: Two or Three, One or Four, Three or One, One or Two.
Only one of the statement is correct. How many marbles are there under each mug?
Answer
A simple one.
As it is given that only one of the four statement is correct, the correct number can not appear in more than one statement. If it appears in more than one statement, then more than one statement will be correct.
Hence, there are 4 marbles under each mug.
======================================
Brain Teaser No : 00254
One of the four people - Mr. Clinton, his wife Monika, their son Mandy and their daughter Cindy - is a singer and another is a dancer. Mr. Clinton is older than his wife and Mady is older than his sister.
1. If the singer and the dancer are the same sex, then the dancer is older than the singer.
2. If neither the singer nor the dancer is the parent of the other, then the singer is older than the dancer.
3. If the singer is a man, then the singer and the dancer are the same age.
4. If the singer and the dancer are of opposite sex then the man is older than the woman.
5. If the dancer is a woman, then the dancer is older than the singer.
Whose occupation do you know? And what is his/her occupation?
Answer
Cindy is the Singer. Mr. Clinton or Monika is the Dancer.
From (1) and (3), the singer and the dancer, both can not be a man. From (3) and (4), if the singer is a man, then the dancer must be a man. Hence, the singer must be a woman.
CASE I : Singer is a woman and Dancer is also a woman
Then, the dancer is Monika and the singer is Cindy.
CASE II : Singer is a woman and Dancer is also a man
Then, the dancer is Mr. Clinton and the singer is Cindy.
In both the cases, we know that Cindy is the Singer. And either Mr. Clinton or Monika is the Dancer.
======================================
Brain Teaser No : 00272
What are the next two numbers in this series?
1, 4, 1, 5, 9, 2, _, _
Submitted by : Alex Crosse
Answer
Next two numbers are 6 and 5.
The patten is the each digit in the value of PI after the decimal point. The value of mathematical constant PI is 3.1415926536.
================================
Brain Teaser No : 00275
There are two ropes. Each one can burn in exactly one hour. They are not necessarily of the same length or width as each other. They also are not of uniform width (may be thiner/wider in middle than on the end), thus burning half of the rope is not necessarily 1/2 hour.
By burning the ropes, how do you measure exactly 45 minutes worth of time?
Answer
If you light both ends of one rope simultaneously, it will burn in exactly a 1/2 hour. Thus, burn one rope from both ends and the other rope from only one end. Once the one rope (which is burning from both ends) finally burns out (and you know a 1/2 hour has elapsed), you also know that the other rope (which is burning from only one end) has exactly 1/2 hour left to burn. Since you only want 45 minutes, light the second end of the rope. This remaining piece will burn in 15 minutes. Thus, totaling 45 minutes.
====================================
Brain Teaser No : 00393
Which of the following day(s) can't be the last day of a century?
Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Justify your answer.
Answer
The last day of a century can not be Tuesday, Thursday or Saturday.
A normal year has 365 days whereas a leap year has 366 days. Every year which is divisible by 4 is called a leap year. Also, every 4th century is a leap year but no other century is a leap year.
1 normal year = 365 days = 52 weeks + 1 day
1 leap year = 366 days = 52 weeks + 2 day
Thus, a normal year has 1 odd day whereas a leap year has 2 odd days.
100 years
= 76 normal years + 24 leap years
= 76*[52 weeks + 1 day] + 24*[52 weeks + 2 day]
= (76*52) weeks + 76 days + (24*52) weeks + 48 days
= 5200 weeks + 124 days
= 5217 weeks + 5 days
i.e. 100 years contain 5 odd days
Similarly,
200 years contain 10 odd days i.e. 3 odd days.
300 years contain 15 odd days i.e. 1 odd days.
400 years contain (20+1) odd days i.e. 0 odd days.
Note that 400 years contain one more leap year.
Also, we have Sunday for 0 odd day, Monday for 1 odd day, Tuesday for 2 odd days, and so on...
Thus, last day of first century is Friday. (5 odd days)
Last day of second century is Wednesday. (3 odd days)
Last day of third century is Monday. (1 odd days)
Last day of forth century is Sunday. (0 odd days)
Since the order is repeating in successive cycles, the last day of a century can not be Tuesday, Thursday or Saturday.
==================================
Brain Teaser No : 00474
Given any whole number take the sum of the digits, and the product of the digits, and multiply these together to get a new whole number.
For example, starting with 6712, the sum of the digits is (6+7+1+2) = 16, and the product of the digits is (6*7*1*2) = 84. The answer in this case is then 84 x 16 = 1344.
If we do this again starting from 1344, we get (1+3+4+4) * (1*3*4*4) = 576
And yet again (5+7+6) * (5*7*6) = 3780
At this stage we know what the next answer will be (without working it out) because, as one digit is 0, the product of the digits will be 0, and hence the answer will also be 0.
Can you find any numbers to which when we apply the above mentioned rule repeatedly, we never end up at 0?
Answer
Three such numbers are 1, 135 and 144.
It seems that most numbers will eventually end up at 0 when we apply the rule repeatedly. But there are a few numbers that have the property that when we apply the rule repeatedly, we never end up at 0.
Start with 332, then we get (3+3+2) * (3*3*2) = 144
And then (1+4+4) * (1*4*4) = 144
Thus if we reach 144, we stay there however many times we apply this rule. We say that 144 is fixed by this rule. Now try 233 or 98 or 332 or 1224. They all fall into the same group i.e. we reach 144.
There is another number that is fixed by this rule; it is 1 (because the sum of the digits of 1 is 1, and the product of the digits is 1 so, starting with 1, the answer is 1 * 1 = 1).
And the third one is 135.
If you know some other numbers, do let us know.
=====================================
Brain Teaser No : 00510
Substitute digits for the letters to make the following addition problem true.
W H O S E
T E E T H
A R E
+ A S
-------------------
S W O R D S
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter H, no other letter can be 3 and all other H in the puzzle must be 3.
Answer
It is obvious that S=1 and T=9.
Also, (H + E) should be greater than 10 and hence, (E + H + E) must 20. Thus, there are 3 possible values for (E, H) pair: (6, 8) or (7, 6) or (8, 4). Use trial-n-error and everything will fit-in.
W H O S E 2 8 5 1 6
T E E T H 9 6 6 9 8
A R E 4 7 6
+ A S + 4 1
------------------- -------------------
S W O R D S 1 2 5 7 3 1
==============================================
Brain Teaser No : 00595
Substitute digits for the letters to make the following addition problem true.
I
A G R E E
+ I T S
-------------------
T O U G H
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter S, no other letter can be 3 and all other S in the puzzle must be 3.
Answer
I=7, A=2, G=9, R=4, E=5, T=3, S=6, O=0, G=9, H=8
It is obvious that T=A+1. Also, G=9, O=0 and R+I>10. Hence, T>1
There must be a carry from the units. Hence E+T=8. So (E, T) can be (6, 2), (5, 3), (3, 5), (2, 6) or (1, 7).
Now, use trial-n-error and solve it.
I 7
A G R E E 2 9 4 5 5
+ I T S + 7 3 6
------------------- -------------------
T O U G H 3 0 1 9 8
==========================================
Brain Teaser No : 00010
In a contest of intelligence, three problems A, B and C were posed.
* Among the contestants there were 25 who solved at least one problem each.
* Of all the contestants who did not solve problem A, the number who solved B was twice the number who solved C.
* The number of participants who solved only problem A was one more than the number who solved problem A and at least one other problem.
* Of all students who solved just one problem, half did not solve problem A.
How many students solved only problem B?
Answer
6 students solved only problem B
X => Students who solved only problem A
Y => Students who solved only problem B
Z => Students who solved only problem C
P => Students who solved both problem B and problem C
From 4 :
Students who solved only problem A = Students who solved only problem B + Students who solved only problem C
X = Y + Z
From 3 :
Students who solved problem A and at least one other = X - 1
From 2 :
(Y + P) = 2 * (Z + P)
Y + P = 2 * Z + 2 * P
Z = (Y - P) / 2
From 1 and Figure:
X + X - 1 + Y + Z + P = 25
2*X + Y + Z + P = 26
2*(Y + Z) + Y + Z + P = 26 (from 4)
3*Y + 3*Z + P = 26
3*Y + 3* (Y - P) / 2 + P = 26 (from 2)
6*Y + 3*Y - 3*P + 2*P = 52
9*Y - P = 52
Y = (52 + P) / 9
Now, it is obvious that all values are integer. Hence, P must be 2 and Y must be 6.
So 6 students solved only problem B.
===========================================
Brain Teaser No : 00355
Montu, Bantu, Chantu and Pintu have pets.
Montu says, "If Pintu and I each have a dog, then exactly one of Bantu and Chantu has a dog."
Bantu says, "If Chantu and I each have a cat, then exactly one of Montu and Pintu has a dog."
Chantu says, "If Montu and I each have a dog, then exactly one of Bantu and Pintu has a cat."
Pintu says, "If Bantu and I each have a cat, then exactly one of Bantu and I has a dog."
Only one of the four is telling the truth. Who is telling the truth?
Answer
Bantu is telling the truth.
For a IF-THEN statement to be false, IF part has to be true and THEN part has to be false.
Since only one statement is true and remaining three are false, IF part of three statements are true & THEN part of one statement is true. Let's put the given information in table. The pet-name in the normal text represents the IF part and the pet-name in round brackets represents the THEN part.
Montu Bantu Chantu Pintu
Montu says Dog (Dog) (Dog) Dog
Bantu says (Dog) Cat Cat (Dog)
Chantu says Dog (Cat) Dog (Cat)
Pintu says Cat
(Dog) Cat
(Dog)
It is clear that the IF part of the statements made by Montu, Chantu and Pintu are true as they do not contradict each other. And the IF part of the statement made by Bantu is false.
Thus, Bantu is telling the truth.
Montu have a Dog and may or may not have a Cat.
Bantu have a Cat.
Chantu have a Dog.
Pintu have a Dog and a Cat.
=================================
Brain Teaser No : 00496
Karan bought a little box of midget matches, each one inch in length. He found that he could arrange them all in the form of a triangle whose area was just as many square inches as there were matches.
He then used up six of the matches, and found that with the remainder he could again construct another triangle whose area was just as many square inches as there were matches.
And using another six matches he could again do precisely the same.
How many matches were there in the box originally?
Note that the match-box can hold maximum of 50 matches.
Answer
Initially, there were 42 or 36 matches in the match-box.
There are 42 matches in the box with which he could form a triangle 20, 15, 7, with an area of 42 square inches. After 6 matches had been used, the remaining 36 matches would form a triangle 17, 10, 9, with an area of 36 square inches. After using another 6 matches, the remaining 30 matches would form a triangle 13, 12, 5, with an area of 30 square inches. After using another 6, the 24 remaining would form a triangle 10, 8, 6, with an area of 24 square inches.
Thus, there are two possible answers. There were either 42 or 36 matches in the match-box.
Also it is interesting to know that there are just 5 such triangles for which the perimeter and the area is the same (assuming all sides are integers) and they are :
1. 24 (10, 8, 6)
2. 30 (13, 12, 5)
3. 36 (17, 10, 9)
4. 42 (20, 15, 7)
5. 60 (29, 25, 6)
===================================
Brain Teaser No : 00524
Last Saturday Milan went for the late night show and came late. In the morning family members asked him which movie did he see. He gave different answers to everyone.
* He told to his father that he had gone to see MONEY.
* According to his mom, he saw either JOHNY or BABLU.
* His elder brother came to know that he saw BHABI.
* To his sister, he told ROBOT.
* And his grandpa heard that he saw BUNNY.
Thus, Milan gave six movie names, all five letter words. But he saw some other movie with five letter word. Moreover, each of the six movie names mentioned above has exactly two letters common with the movie he saw. (with the same positions)
Can you tell which movie did Milan see?
Answer
Milan saw BOBBY.
The six movie names are - MONEY, JOHNY, BABLU, BHABI, ROBOT and BUNNY.
Compare MONEY and JOHNY. They have O common at the second place and Y common at the fifth place. Also, they can't have two different letters each, common with the required movie as the letters in remaining three places are all different. Thus, the required movie must have either O at the second place or Y at the fifth place or both.
Similarly, comparing JOHNY and BUNNY - the required movie must have either N at the fourth place or Y at the fifth place or both. Also, comparing MONEY and BUNNY - the required movie must have either N at the third place or Y at the fifth place or both.
From the above 3 deduction, either Y is at fifth place or O is at the second place and N is at the third & fourth place. The later combination is not possible as BABLU, BHABI & ROBOT will need at least 3 other letters which makes the required movie 6 letter long. Hence, the required movie must have Y at the fifth place.
Now Y is not there in BABLU and BHABI at the fifth place and they have only B common at the first place. Hence, B must be the first letter.
As B is at the first place and Y is at the fifth place and every movie has exactly 2 letters common with the required movie. From BUNNY, the required movie do not have U at the second place and N at the third and fourth place. Now looking at JOHNY and MONEY, they must have O common at the second place.
Using the same kind of arguments for BABLU, BHABI and ROBOT, we can conclude that Milan saw BOBBY.
=========================================
Brain Teaser No : 00499
Six cabins numbered 1-6 consecutively, are arranged in a row and are separated by thin dividers. These cabins must be assigned to six staff members based on following facts.
1. Miss Shalaka's work requires her to speak on the phone frequently throughout the day.
2. Miss Shudha prefers cabin number 5 as 5 is her lucky number.
3. Mr. Shaan and Mr. Sharma often talk to each other during their work and prefers to have adjacent cabins.
4. Mr. Sinha, Mr. Shaan and Mr. Solanki all smoke. Miss Shudha is allergic to smoke and must have non-smokers adjacent to her.
5. Mr. Solanki needs silence during work.
Can you tell the cabin numbers of each of them?
Answer
The cabins from left to right (1-6) are of Mr. Solanki, Mr. Sinha, Mr. Shaan, Mr. Sharma, Miss Shudha and Miss Shalaka.
From (2), cabin number 5 is assigned to Miss Shudha.
As Miss Shudha is allergic to smoke and Mr. Sinha, Mr. Shaan & Mr. Solanki all smoke, they must be in cabin numbers 1, 2 and 3 not necessarily in the same order. Also, Miss Shalaka and Mr. Sharma must be in cabin 4 and 6.
From (3), Mr. Shaan must be in cabin 3 and Mr. Sharma must be in cabin 4. Thus, Miss Shalaka is in cabin 6.
As Mr. Solanki needs silence during work and Mr. Shaan is in cabin 3 who often talks to Mr. Sharma during work, Mr. Solanki must be in cabin 1. Hence, Mr. Sinha is in cabin 2.
Thus, the cabins numbers are
1# Mr. Solanki,
2# Mr. Sinha,
3# Mr. Shaan,
4# Mr. Sharma,
5# Miss Shudha,
6# Miss Shalaka
===============================
Brain Teaser No : 00541
A CAR has a value of 1 and a TRACTOR has a value of 2.
What is the value of an AIRPLANE? Note that AIRPLANE costs more than CAR or TRACTOR.
Submitted by : Lynda
Answer
AIRPLANE has a value of 4.
The value of each vehicle equals the total number of vowels in the word.
CAR has 1 vowel i.e. A
TRACTOR has 2 vowels i.e. A O
AIRPLANE has 4 vowels i.e. A I A E
There is one more possible answer: The value of each vehicle equals the total number of DISTINCT vowels in the word. So the value of AIRPLANE will be 3.
========================================
Brain Teaser No : 00235
Consider a number 235, where last digit is the sum of first two digits i.e. 2 + 3 = 5.
How many such 3-digit numbers are there?
Answer
There are 45 different 3-digit numbers.
The last digit can not be 0.
If the last digit is 1, the only possible number is 101. (Note that 011 is not a 3-digit number)
If the last digit is 2, the possible numbers are 202 and 112.
If the last digit is 3, the possible numbers are 303, 213 and 123.
If the last digit is 4, the possible numbers are 404, 314, 224 and 134.
If the last digit is 5, the possible numbers are 505, 415, 325, 235 and 145.
Note the pattern here - If the last digit is 1, there is only one number. If the last digit is 2, there are two numbers. If the last digit is 3, there are three numbers. If the last digit is 4, there are four numbers. If the last digit is 5, there are five numbers. And so on.....
Thus, total numbers are
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45
Altogether then, there are 45 different 3-digit numbers, where last digit is the sum of first two digits.
==============================
Brain Teaser No : 00284
While sitting in a club where all single men tell the truth and all married men lie, a woman is approached by three men.
She asks the first guy if he is married, but the music is so loud that she can not hear his answer.
So she turns to the second guy, who tells her, "The first guy said, 'I am married', but he is really single."
Then she turns to the third guy, who says, "The second guy is single."
Can you determine the marital status of each of the three men?
Submitted by : Marie
Answer
All three are married.
A single man would always say that he is single. And a married man would also always say that he is single. It means that no man in the club would say that he is married. Thus, the second man is lying, so the second man is married.
Since the second man (always lies) says the first man is single, the first man is married.
Similarly, the third man incorrectly says that the second man is single. Hence, the third man is lying and he is married.
Thus, all three are lying and hence, married.
=============================
Brain Teaser No : 00435
Substitute digits for the letters to make the following Division true
G E T
-------------
N U T | G I N G E R
| N U T
-------------
E I N E
G U A O
---------
T T O R
E O G D
-------
U A O
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter U, no other letter can be 3 and all other U in the puzzle must be 3.
Submitted by : Calon
Answer
I=0, G=1, E=2, T=3, A=4, R=5, O=6, U=7, N=8, D=9
At a first glance, it is obvious that G=1, E=2 and T=3. Everything else is pretty simple now.
1 2 3
-------------
8 7 3 | 1 0 8 1 2 5
| 8 7 3
-------------
2 0 8 2
1 7 4 6
---------
3 3 6 5
2 6 1 9
-------
7 4 6
=======================================
Brain Teaser No : 00023
There is a grid of 20 squares by 10 squares. How many different rectangles are possible?
Note that square is a rectangle.
Answer
11550
The Generic solution to this is:
Total number of rectangles = (Summation of row numbers) * (Summation of column numbers)
Here there are 20 rows and 10 columns or vice versa. Hence, total possible rectangles
= ( 20 + 19 + 18 + 17 + 16 + .... + 3 + 2 + 1 ) * ( 10 + 9 +8 + 7 + .... + 3 + 2 + 1)
= ( 210 ) * (55)
= 11550
Hence, total 11,550 different rectangles are possible.
If you don't believe it, try formula on some smaller grids like 4x2, 3x2, 3x3 etc...
===================================
Brain Teaser No : 00115
Four prisoners escape from a prison.
The prisoners, Mr. East, Mr. West, Mr. South, Mr. North head towards different directions after escaping.
The following information of their escape was supplied:
* The escape routes were North Road, South Road, East Road and West Road
* None of the prisoners took the road which was their namesake
* Mr. East did not take the South Road
* Mr.West did not the South Road
* The West Road was not taken by Mr. East
What road did each of the prisoners take to make their escape?
Answer
Put all the given information into the table structure as follow:
North Road South Road East Road West Road
Mr. North No
Mr. South No
Mr. East No No No
Mr. West No No
Now from table, two things are obvious and they are:
* Mr.North took the South Road
* Mr.East took the North Road
Put this information into the table, Also keep in mind that the prisoners head towards different directions after escaping.
North Road South Road East Road West Road
Mr. North No YES No No
Mr. South No No
Mr. East YES No No No
Mr. West No No No
Now from the table:
* Mr.West took the East Road
* Mr.South took the West Road
So the answer is:
* Mr.North took the South Road
* Mr.South took the West Road
* Mr.East took the North Road
* Mr.West took the East Road
======================================
Brain Teaser No : 00216
When Socrates was imprisoned for being a disturbing influence, he was held in high esteem by his guards. All four of them hoped that something would occur that would facilitate his escape. One evening, the guard who was on duty intentionally left the cell door open so that Socrates could leave for distant parts.
Socrates did not attempt to escape, as it was his philosophy that if you accept society's rules, you must also accept it's punishments. However, the open door was considered by the authorities to be a serious matter. It was not clear which guard was on that evening. The four guards make the following statements in their defense:
Aaron:
A) I did not leave the door open.
B) Clement was the one who did it.
Bob:
A) I was not the one who was on duty that evening.
B) Aaron was on duty.
Clement:
A) Bob was the one on duty that evening.
B) I hoped Socrates would escape.
David:
A) I did not leave the door open.
B) I was not surprised that Socrates did not attempt to escape.
Considering that, in total, three statements are true, and five statements are false, which guard is guilty?
Answer
David is the guilty.
Note that "All four of them hoped that something would occur that would facilitate his escape". It makes Clement's statement B True and David's statement B False.
Now consider each of them as a guilty, one at a time.
Aaron Bob Clement David True
Stmts
A B A B A B A B
If Aaron is guilty False False True True False True True False 4
If Bob is guilty True False False False True True True False 4
If Clement is guilty True True True False False True True False 5
If David is guilty True False True False False True False False 3
Since in total, three statements are true and five statements are false. It is clear from the above table that David is the guity.
==================================
Brain Teaser No : 00296
Substitute digits for the letters to make the following subtraction problem true.
S A N T A
- C L A U S
-----------------
X M A S
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter M, no other letter can be 3 and all other M in the puzzle must be 3.
Answer
One of the simplest brain teaser as there are total 26 possible answers.
It is obvious that S=C+1. Since A-S=S, it is clear that A=2*S or 2*s-10. Also, L and X are interchangeable.
SANTA - CLAUS = XMAS
24034 - 16492 = 7542
24034 - 17492 = 6542
24074 - 15432 = 8642
24074 - 18432 = 5642
24534 - 16492 = 8042
24534 - 18492 = 6042
24794 - 16452 = 8342
24794 - 18452 = 6342
24804 - 15462 = 9342
24804 - 19462 = 5342
24974 - 16432 = 8542
24974 - 18432 = 6542
36806 - 27643 = 9163
36806 - 29643 = 7163
36156 - 27693 = 8463
36156 - 28693 = 7463
62132 - 54206 = 7926
62132 - 57206 = 4926
62172 - 53246 = 8926
62172 - 58246 = 3926
62402 - 53276 = 9126
62402 - 59276 = 3126
62712 - 53286 = 9426
62712 - 59286 = 3426
62932 - 58206 = 4726
62932 - 54206 = 8726
========================
Brain Teaser No : 00844
Scientist decided to do a study on the population growth of rabbits. Inside a controlled environment, 1000 rabbits were placed.
Six months later, there were 1000Z rabbits. At the beginning of the 3rd year, there were roughly 2828Z rabbits, which was 4 times what the scientists placed in there at the beginning of the 1st year.
If Z is a positive variable, how many rabbits would be there at the beginning of the 11th year?
Submitted by : David Johnson
Answer
At the beginning of the 11th year, there would be 1,024,000 rabbits.
At the beginning, there were 1000 rabbits. Also, there were 4000 rabbits at the beginning of third year which is equal to 2828Z. Thus, Z = 4000/2828 i.e. 1.414 (the square root of 2)
Note that 2828Z can be represented as 2000*Z*Z (Z=1.414), which can be further simplified as 1000*Z*Z*Z*Z
Also, it is given that at the end of 6 months, there were 1000Z rabbits.
It is clear that the population growth is 1.414 times every six months i.e. 2 times every year. After N years, the population would be 1000*(Z^(2N)) i.e. 1000*(2^N)
Thus, at the beginning of the 11th year (i.e. after 10 years), there would be 1000*(2^10) i.e. 1,024,000 rabbits.
=====================================
Brain Teaser No : 00036
A number of 9 digits has the following properties:
* The number comprising the leftmost two digits is divisible by 2, that comprising the leftmost three digits is divisible by 3, the leftmost four by 4, the leftmost five by 5, and so on for the nine digits of the number i.e. the number formed from the first n digits is divisible by n, 2<=n<=9. * Each digit in the number is different i.e. no digits are repeated. * The digit 0 does not occur in the number i.e. it is comprised only of the digits 1-9 in some order. Find the number. Answer The answer is 381654729 One way to solve it is Trial-&-Error. You can make it bit easier as odd positions will always occupy ODD numbers and even positions will always occupy EVEN numbers. Further 5th position will contain 5 as 0 does not occur. The other way to solve this problem is by writing a computer program that systematically tries all possibilities. ================================= Brain Teaser No : 00127 Grass in lawn grows equally thick and in a uniform rate. It takes 24 days for 70 cows and 60 days for 30 cows to eat the whole of the grass. How many cows are needed to eat the grass in 96 days? Answer 20 cows g - grass at the beginning r - rate at which grass grows, per day y - rate at which one cow eats grass, per day n - no of cows to eat the grass in 96 days From given data, g + 24*r = 70 * 24 * y ---------- A g + 60*r = 30 * 60 * y ---------- B g + 96*r = n * 96 * y ---------- C Solving for (B-A), (60 * r) - (24 * r) = (30 * 60 * y) - (70 * 24 * y) 36 * r = 120 * y ---------- D Solving for (C-B), (96 * r) - (60 * r) = (n * 96 * y) - (30 * 60 * y) 36 * r = (n * 96 - 30 * 60) * y 120 * y = (n * 96 - 30 * 60) * y [From D] 120 = (n * 96 - 1800) n = 20 Hence, 20 cows are needed to eat the grass in 96 days. ============================================= Brain Teaser No : 00164 Substitute digits for the letters to make the following relation true. W O R L D + T R A D E ------------- C E N T E R Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter W, no other letter can be 3 and all other W in the puzzle must be 3. Answer A tough one. It is obvious that C=1. Also, the maximum possible value of E is 7. Now, start putting possible values of D, E and R as they occure frequently and use trial-n-error. W O R L D 5 3 6 8 4 + T R A D E + 7 6 0 4 2 ------------ ------------ C E N T E R 1 2 9 7 2 6 ============================================= Brain Teaser No : 00391 In the following multiplication, certain digits have been replaced with asterisks (*). Replace all the asterisks such that the problem holds the result. * * 7 X 3 * * ---------- * 0 * 3 * 1 * * 5 * ------------- * 7 * * 3 Answer A simple one. 1 1 7 X 3 1 9 ---------- 1 0 5 3 1 1 7 3 5 1 ------------- 3 7 3 2 3 ================================= Brain Teaser No : 00468 A blindfolded man is asked to sit in the front of a carrom board. The holes of the board are shut with lids in random order, i.e. any number of all the four holes can be shut or open. Now the man is supposed to touch any two holes at a time and can do the following. * Open the closed hole. * Close the open hole. * Let the hole be as it is. After he has done it, the carrom board is rotated and again brought to some position. The man is again not aware of what are the holes which are open or closed. How many minimum number of turns does the blindfolded man require to either open all the holes or close all the holes? Note that whenever all the holes are either open or close, there will be an alarm so that the blindfolded man will know that he has won. Submitted by : Vikrant Ramteke Answer The blindfolded man requires 5 turns. 1. Open two adjacent holes. 2. Open two diagonal holes. Now atleast 3 holes are open. If 4th hole is also open, then you are done. If not, the 4th hole is close. 3. Check two diagonal holes. * If one is close, open it and all the holes are open. * If both are close, open any one hole. Now, two holes are open and two are close. The diagonal holes are in the opposite status i.e. in both the diagonals, one hole is open and one is close. 4. Check any two adjacent holes. * If both are open, close both of them. Now, all holes are close. * If both are close, open both of them. Now, all holes are open. * If one is open and one is close, invert them i.e. close the open hole and open the close hole. Now, the diagonal holes are in the same status i.e. two holes in one diagonal are open and in other are close. 5. Check any two diagonal holes. * If both are open, close both of them. Now, all holes are close. * If both are close, open both of them. Now, all holes are open. ======================================== Brain Teaser No : 00807 How many possible combinations are there in a 3x3x3 rubics cube? In other words, if you wanted to solve the rubics cube by trying different combinations, how many might it take you (worst case senerio)? How many for a 4x4x4 cube? Submitted by : Sarah Flod Answer There are 4.3252 * 10^19 possible combinations for 3x3x3 Rubics and 7.4012 * 10^45 possible combinations for 4x4x4 Rubics. Let's consider 3x3x3 Rubics first. There are 8 corner cubes, which can be arranged in 8! ways. Each of these 8 cubes can be turned in 3 different directions, so there are 3^8 orientations altogether. But if you get all but one of the corner cube into chosen positions and orientations, only one of 3 orientations of the final corner cube is possible. Thus, total ways corner cubes can be placed = (8!) * (3^8)/8 = (8!) * (3^7) Similarly, 12 edge cubes can be arranged in 12! ways. Each of these 12 cubes can be turned in 2 different directions, so there are 2^12 orientations altogether. But if you get all but one of the edge cube into chosen positions and orientations, only one of 2 orientations of the final edge cube is possible. Thus, total ways edge cubes can be placed = (12!) * (2^12)/2 = (12!) * (2^11) Here, we have essentially pulled the cubes apart and stuck cubes back in place wherever we please. In reality, we can only move cubes around by turning the faces of the cubes. It turns out that you can't turn the faces in such a way as to switch the positions of two cubes while returning all the others to their original positions. Thus if you get all but two cubes in place, there is only one attainable choice for them (not 2!). Hence, we must divide by 2. Total different possible combinations are = [(8!) * (3^7)] * [(12!) * (2^11)] / 2 = (8!) * (3^7) * (12!) * (2^10) = 4.3252 * 10^19 Similarly, for 4x4x4 Rubics total different possible combinations are = [(8!) * (3^7)] * [(24!)] * [(24!) / (4!^6)] / 24 = 7.4011968 * 10^45 Note that there are 24 edge cubes, which you can not turn in 2 orientations (hence no 2^24 / 2). Also, there are 4 center cubes per face i.e. (24!) / (4!^6). You can switch 2 cubes without affecting the rest of the combination as 4*4*4 has even dimensions (hence no division by 2). But pattern on one side is rotated in 4 directions over 6 faces, hence divide by 24. ====================================== Brain Teaser No : 00093 There is a number that is 5 times the sum of its digits. What is this number? Answer is not 0. Answer The number is 45, simply because 45 = 5 * (4 + 5) How does one find this number? Let T be the digit in the tens place and U be the digit in the units place. Then, the number is 10*T + U, and the sum of its digits is T + U. The following equation can be readily written: 10*T + U = 5*(T + U) or 10*T + U = 5*T + 5*U or 5*T = 4*U Thus, T / U = 4 / 5 Since T and U are digits, T must be 4 and U must be 5. ==================================== Brain Teaser No : 00273 Eleven boys and girls wait to take their seats in the same row in a movie theater. There are exactly 11 seats in the row. They decided that after the first person sits down, the next person has to sit next to the first. The third sits next to one of the first two and so on until all eleven are seated. In other words, no person can take a seat that separates him/her from at least one other person. How many different ways can this be accomplished? Note that the first person can choose any of the 11 seats. Answer There are 1024 different ways. This is the type of Brain Teaser that can be solved using the method of induction. If there is just a one person and one seat, that person has only one option. If there are two persons and two seats, it can be accomplished in 2 different ways. If there are three persons and three seats, it can be accomplished in 4 different ways. Remember that no person can take a seat that separates him/her from at least one other person. Similarly, four persons and four seats produce 8 different ways. And five persons with five seats produce 16 different ways. It can be seen that with each additional person and seat, the different ways increase by the power of two. For six persons with six seats, there are 32 different ways. For any number N, the different possible ways are 2(N-1) Thus, for 11 persons and 11 seats, total different ways are 210 i.e. 1024 ======================== Brain Teaser No : 00340 Find the next in the set: AZFR, LARU, AMAS, SBNS, KICI, ???? Submitted by : Milind Gadagkar Answer The next word in the series is AAEA. If you collect the corresponding letter from each word, they are names of the places. Consider the following five names : A L A S K A Z A M B I A F R A N C E R U S S I A First letter of each word : A Z F R Second letter of each word : L A R U Third letter of each word : A M A A Forth letter of each word : S B N S Fifth letter of each word : K I C I Sixth letter of each word : A A E A Hence, the answer is AAEA. ============================ Brain Teaser No : 00477 Suppose five bales of hay are weighed two at a time in all possible ways. The weights in pounds are 110, 112, 113, 114, 115, 116, 117, 118, 120, and 121. How much does each bale weigh? Submitted by : Travis Lara Answer They weigh 54, 56, 58, 59, 62 pounds. Let's assume that the weight of five bales are B1, B2, B3, B4 and B5 pounds respectively. Also, B1 <= B2 <= B3 <= B4 <= B5 It is given that five bales of hay are weighed two at a time in all possible ways. It means that each of the bale is weighted four times. Thus, 4*(B1 + B2 + B3 + B4 + B5) = (110 + 112 + 113 + 114 + 115 + 116 + 117 + 118 + 120 + 121) 4*(B1 + B2 + B3 + B4 + B5) = 1156 (B1 + B2 + B3 + B4 + B5) = 289 pounds Now, B1 and B2 must add to 110 as they are the lightest one. B1 + B2 = 110 Similarly, B4 and B5 must add to 121 as they are the heaviest one. B4 + B5 = 121 From above three equation, we get B3 = 58 pounds Also, it is obvious that B1 and B3 will add to 112 - the next possible higher value. Similarly, B3 and B5 will add to 120 - the next possible lower value. B1 + B3 = 112 B3 + B5 = 120 Substituting B3 = 58, we get B1 = 54 and B5 = 62 From 2 & 3 equations, we get B2 = 56 and B4 = 59 Hence, the weight of five bales are 54, 56, 58, 59 and 62 pounds. ================================ Brain Teaser No : 00461 Buffalo produces 10 pounds of milk daily, a cow produces 1 pound of milk daily, and sheep produce 1/4 pound of milk daily. I need exactly 100 pounds of milk from exactly 100 different animals daily. Also, I should use all 3 types of animals. How do I get it? Submitted by : JK Answer There are 7 possible answers to it. Assume that there are B Buffaloes, C Cows and S Sheep. It is given that a Buffalo produces 10 pounds of milk, a Cow produces 1 pound of mile and a Sheep produces 0.25 pound of milk. Also, we need 100 pound of milk from exactly 100 animals, we get 2 equations. 10*B + C + 0.25*S = 100 --------- (I) B + C + S = 100 --------- (II) Subtracting equation (II) from equation (I) 9*B - 0.75*S = 0 36*B - 3*S = 0 (multiplied by 4) 12*B - S = 0 (division by 3) 12*B = S Now, for different values of B, we will get multiple solutions. * 1 Buffalo, 12 Sheep, 87 Cows * 2 Buffaloes, 24 Sheep, 74 Cows * 3 Buffaloes, 36 Sheep, 61 Cows * 4 Buffaloes, 48 Sheep, 48 Cows * 5 Buffaloes, 60 Sheep, 35 Cows * 6 Buffaloes, 72 Sheep, 22 Cows * 7 Buffaloes, 84 Sheep, 9 Cows ======================================= Brain Teaser No : 00526 What are the next two number in the series? 1, 2, 4, 7, 28, 33, 198, ?, ? Answer The next two numbers are 205 and 1640. The pattern is : 1 + 1 * 2 + 3 * 4 + 5 * 6 + 7 * 8 + 9 * 10 or to the current number add and multiply alternatively by the number's position to get the next number. First number = 1 Second number = 1 + 1 = 2 Third number = 2 * 2 = 4 Fourth number = 4 + 3 = 7 Fifth number = 7 * 4 = 28 Sixth number = 28 + 5 = 33 Seventh number = 33 * 6 = 198 Eight number = 198 + 7 = 205 Ninth number = 205 * 8 = 1640 Tenth number = 1640 + 9 = 1649 ================================== Brain Teaser No : 00537 There is a 4-character code, with 2 of them being letters and the other 2 being numbers. How many maximum attempts would be necessary to find the correct code? Note that the code is case-sensitive. Submitted by : Destructo_girl Answer The maximum number of attempts required are 16,22,400 There are 52 possible letters - a to z and A to Z, and 10 possible numbers - 0 to 9. Now, 4 characters - 2 letters and 2 numbers, can be selected in 52*52*10*10 ways. These 4 characters can be arranged in 4C2 i.e. 6 different ways - the number of unique patterns that can be formed by lining up 4 objects of which 2 are distinguished one way (i.e. they must be letters) and the other 2 are distinguished another way (i.e. they must be numbers). Consider an example : Let's assume that @ represents letter and # represents number. the 6 possible ways of arranging them are : @@##, @#@#, @##@, #@@#, #@#@, ##@@ Hence, the required answer is = 52*52*10*10*6 = 16,22,400 attempts = 1.6 million approx. Thanks to Tim Sanders for opening BrainVista's brain !!! ============================= Brain Teaser No : 00643 A, B and C are three points on a straight line, not necessarily equidistant with B being between A and C. Three semicircles are drawn on the same side of the line with AB, BC and AC as the diameters. BD is perpendicular to the line ABC, and D lies on the semicircle AC. If the funny shaped diagram between the three semicircles has an area of 1000 square cms, find the length of BD. Answer The length of BD is 35.68 cms There are 3 right-angled triangles - ABD, CBD and ADC. From ABD, AB^2 + BD^2 = AD^2 ------ I From CBD, CB^2 + BD^2 = CD^2 ------ II From ADC, AD^2 + CD^2 = AC^2 ------ III Adding I and II, AB^2 + BC^2 + 2*BD^2 = AD^2 + CD^2 ------ IV FROM III and IV AB^2 + BC^2 + 2*BD^2 = AC^2 AB^2 + BC^2 + 2*BD^2 = (AB+CB)^2 2*BD^2 = 2*AB*CB BD^2 = AB*CB BD = SQRT(AB*CB) Given that funny shaped diagram beween three semicircles has an area of 1000 square cms. [PI/2 * (AC/2)^2] - [PI/2 * (AB/2)^2] - [PI/2 * (BC/2)^2] = 1000 PI/8 * [AC^2 - AB^2 - BC^2] = 1000 PI * [(AB+BC)^2 - AB^2 - BC^2] = 8000 PI * [2*AB*BC] = 8000 AB * BC = 4000/PI Hence BD = SQRT(4000/PI) = 35.68 cms where PI = 3.141592654 Hence, the length of BD is 35.68 cms. ================================== Brain Teaser No : 00142 There are four groups of Mangoes, Apples and Bananas as follows: Group I : 1 Mango, 1 Apples and 1 Banana Group II : 1 Mango, 5 Apples and 7 Bananas Group III : 1 Mango, 7 Apples and 10 Bananas Group IV : 9 Mango, 23 Apples and 30 Bananas Group II costs Rs 300 and Group III costs Rs 390. Can you tell how much does Group I and Group IV cost? Answer Group I costs Rs 120 and Group IV costs Rs 1710 Assume that the values of one mango, one apple and one banana are M, A and B respectively. From Group II : M + 5A + 7B = 300 From Group III : M + 7A + 10B = 390 Subtracting above to equations : 2A + 3B = 90 For Group I : = M + A + B = (M + 5A + 7B) - (4A + 6B) = (M + 5A + 7B) - 2(2A + 3B) = 300 - 2(90) = 300 - 180 = 120 Similarly, for Group IV : = 9M + 23A + 30B = 9(M + 5A + 7B) - (22A + 33B) = 9(M + 5A + 7B) - 11(2A + 3B) = 9(300) - 11(90) = 2700 - 990 = 1710 Thus, Group I costs Rs 120 and Group IV costs Rs 1710. ============================= Brain Teaser No : 00580 In Column-I below, are given some words. These have been translated into a code language. The code equivalents of the words in Column-I are given in Column-II, not necessarily opposite to the corresponding words. Also, the codes for the different letters in each word have also not been given the same order as these letter occur in the original word. COLUMN-I COLUMN-II ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ TAPE moi COP lhhpok TIE nls ROTATE nhpk SAY nkpl TREAT msr YEAR khlph SIP hrp TYRE pmlh Can you decode the individual letter codes? Answer We first find the exact codes of the each given words. ROTATE is a 6-letter word. So its code is lhhpok. And h is for T. TREAT is a 5-letter word. So its code is khlph. The 4-letter words are TAPE, YEAR, TYRE and codes are nhpk, nkpl, pmlh. YEAR and TYRE have 3 letters in common (Y, E, R). They must be either nhpk or nkpl. Hence, the code for TAPE is pmlh and m is for P. Also the code for TYRE is nhpk (as h is for T) and the code for YEAR is nkpl. The 3-letter words are COP, TIE, SAY, SIP and codes are moi, nls, msr, hrp. The code for TIE is hrp. The code for SIP is msr. The code for COP is moi. And the code for SAY is nls. Thus, the words and their codes are: ROTATE lhhpok TREAT khlph TAPE pmlh TYRE nhpk YEAR nkpl TIE hrp COP moi SIP msr SAY nls So far we know that h is for T and m is for P. In SAY and SIP, the common letter is S stands for s. In TYRE and SAY, the common letter Y stands for n. Thus, in SAY, the remaining letter A stands for l. In TIE and SIP, the common letter I stands for r. Thus, in TIE, the remaining letter E stands for p. In ROTATE and COP, the common letter O stands for o. Thus, in ROTATE, the remaining letter R stands for k. Also, in COP, the remaining letter C stands for i. Summerizing h-T, i-C, k-R, l-A, m-P, n-Y, o-O, p-E, r-I, s-S ======================================== Brain Teaser No : 00266 What are the next two letters in the series? E, O, E, R, E, X, N, T, E, _, _ Submitted by : Katie Cinquegrana Answer The next two letters in the series are N and N The pattern is - Last letter of the numbers starting from 1 when written in English i.e. onE, twO, threE, fouR, fivE, siX, seveN, eighT, ninE, teN, eleveN, twelvE, etc... ===================================== Brain Teaser No : 00274 Find all sets of consecutive integers that add up to 1000. Submitted by : James Barberousse Answer There are total 8 such series: 1. Sum of 2000 numbers starting from -999 i.e. summation of numbers from -999 to 1000. (-999) + (-998) + (-997) + ..... + (-1) + 0 + 1 + 2 + ..... + 997 + 998 + 999 + 1000 = 1000 2. Sum of 400 numbers starting from -197 i.e. summation of numbers from -197 to 202. (-197) + (-196) + (-195) + ..... + (-1) + 0 + 1 + 2 + ..... + 199 + 200 + 201 + 202 = 1000 3. Sum of 125 numbers starting from -54 i.e. summation of numbers from -54 to 70. (-54) + (-53) + (-52) + ..... + (-1) + 0 + 1 + 2 + ..... + 68 + 69 + 70 = 1000 4. Sum of 80 numbers starting from -27 i.e. summation of numbers from -27 to 52. (-27) + (-26) + (-25) + ..... + (-1) + 0 + 1 + 2 + ..... + 50 + 51 + 52 = 1000 5. Sum of 25 numbers starting from 28 i.e. summation of numbers from 28 to 52. 28 + 29 + 30 + 31 + 32 + 33 + 34 + 35 + 36 + 37 + 38 + 39 + 40 + 41 + 42 + 43 + 44 + 45 + 46 + 47 + 48 + 49 + 50 + 51 + 52 = 1000 6. Sum of 16 numbers starting from 55 i.e. summation of numbers from 55 to 70. 55 + 56 + 57 + 58 + 59 +60 + 61 + 62 + 63 + 64 + 65 + 66 + 67 + 68 + 69 + 70 = 1000 7. Sum of 5 numbers starting from 198 i.e. summation of numbers from 198 to 202. 198 + 199 + 200 +201 + 202 = 1000 8. Sum of 1 number starting from 1000. 1000 = 1000 ============================== Brain Teaser No : 00437 One side of the bottom layer of a triangular pyramid has 12 balls. How many are there in the whole pyramid? Note that the pyramid is equilateral and solid. Submitted by : Angela Parr Answer There are total 364 balls. As there are 12 balls along one side, it means that there are 12 layers of balls. The top most layer has 1 ball. The second layer has 3 (1+2) balls. The third layer has 6 (1+2+3) balls. The fourth layer has 10 (1+2+3+4) balls. The fifth layer has 15 (1+2+3+4+5) balls. Similarly, there are 21, 28, 36, 45, 55, 66 and 78 balls in the remaining layers. Hence, the total number of balls are = 1 + 3 + 6 + 10 + 15 + 21 + 28 + 36 + 45 + 55 + 66 + 78 = 364 balls ================================ Brain Teaser No : 00146 Sachin, Dravid and Ganguly played in a Cricket match between India and England. * None of them scored more than 99 runs. * If you add the digits of the runs scored by Sachin to his own score, you will get the runs scored by Dravid. * If you reverse the digits of the runs scored by Dravid, you will get the runs scored by Ganguly. * The total runs scored by them is 240. Can you figure out their individual scores? Answer Sachin, Dravid and Ganguly scored 75, 87 and 78 respectively. Sachin's score must be less than 86, otherwise Dravid's score would be more than 99. Also, he must have scored atleast 42 - incase Dravid and Ganguly scored 99 each. Also, as none of them scored more than 99 and the total runs scored by them is 240; their individual scores must be around 80. Now, use trial-n-error method to solve the teaser. =========================== Brain Teaser No : 00196 Veeru says to Jay, "Can you figure out how many Eggs I have in my bucket?" He gives 3 clues to Jay: If the number of Eggs I have 1. is a multiple of 5, it is a number between 1 and 19 2. is not a multiple of 8, it is a number between 20 and 29 3. is not a multiple of 10, it is a number between 30 and 39 How many Eggs does Veeru have in his bucket? Answer 32 eggs Let's apply all 3 condition separately and put all possible numbers together. First condition says that if multiple of 5, then the number is between 1 and 19. Hence, the possible numbers are (5, 10, 15, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39) Second condition says that if not a multiple of 8, then the number is between 20 and 29. Hence, the possible numbers are (8, 16, 20, 21, 22, 23, 25, 26, 27, 28, 29, 32) Third condition says that if not a multiple of 10, then the number is between 30 and 39. Hence, the possible numbers are (10, 20, 31, 32, 33, 34, 35, 36, 37, 38, 39) Only number 32 is there in all 3 result sets. That means that only number 32 satisfies all three conditions. Hence, Veeru have 32 eggs in his bucket. =================================== Brain Teaser No : 00222 Consider a chessboard with a single Rook. A Rook can move any number of square sideways/forward, but not diagonally. What is the minimum number of moves the Rook needs to make, in order to pass over all the squares on the chessboard and return to the original position? Note: Take any square as a starting position for the Rook. Answer 16 moves As a Rook can move any number of square sideways/forward, but not diagonally and there are 8 rows and 8 columns on the chessboard; the Rook needs minimum 16 moves to pass over all the squares and return to the original position. ================================= Brain Teaser No : 00295 For a TV talk show on Bollywood, the producer must choose a group of two Directors and two Musicians. At least one of them must be an Actor and at least one a Singer. 1. Available Directors are Mahesh Bhatt, Karan Johar, Subhash Ghai, Aditya Chopra and Ashutosh. 2. Available Musicians are A R Rehman, Annu Malik, Sandeep Chowta and Aadesh Srivastava. 3. Shubash Ghai, A R Rehman and Annu Malik are Actors. 4. Aditya Chopra and Aadesh Srivastava are Singers. 5. A R Rehman will not seat in the same room with Subhash Ghai, and will take part only if Mahesh Bhatt is there. 6. Aditya Chopra refuses to take part with Annu Malik. 7. Ashutosh refuses to take part with Aadesh Srivastava. How many acceptable groups can the producer put together? Answer The producer can put 9 acceptable groups together. Your basic solution step is to make a table of the possible persons and qualifications on the Musicians side, with the possible combinations on the Directors side. Note that A R Rehman insists on Mahesh Bhatt being present, but the reverse is not true. Also, remember that there must be at least one actor and at least one singer. The valid combinations are: Musician Director ---------------------------------------------------------- (A R Rehman, Sandeep Chowta) (Mahesh Bhatt, Aditya Chopra) (A R Rehman, (Mahesh Bhatt, Karan Johar) Aadesh Srivastava) (Mahesh Bhatt, Aditya Chopra) (Annu Malik, (Mahesh Bhatt, Karan Johar) Aadesh Srivastava) (Mahesh Bhatt, Subhash Ghai) (Karan Johar, Subhash Ghai) (Sandeep Chowta, (Mahesh Bhatt, Subhash Ghai) Aadesh Srivastava) (Karan Johar, Subhash Ghai) (Aditya Chopra, Subhash Ghai) Thus, there are total 9 acceptable groups. ======================================== Brain Teaser No : 00570 * A is the father of two children - B and D who are of different sexes. * C is B's spouse. * E is the same sex as D. * B and C have the two children - F who is the same sex as B and G who is the same sex as C. * E's mother, H who is married to L, is the sister of D's mother, M. * E and E's spouse, I have two children - J and K who are the same sex as I. Note that no persons have married more than once. Also, there are more number of females than males. Can you tell how many females are there? Answer There are 7 females and 6 males. Assume that there are four sexes - male, female, X and Y. Prepare the following tree based on the data given : sister L(m) - H(f) -------------------- M(f) - A(m) | | | | E(x) - I(y) D(x) B(y) - C(x) | | | | J(y) K(y) F(y) G(x) It is clear that there are altogether 13 persons - 2 males, 2 females, 4 Xs and 5 Ys. It is given that there are more number of females than male. Hence, all Y must represent female. Thus, there are 7 females and 6 males. =========================================== Brain Teaser No : 00614 Place the numbers from 1 to 15 in the blocks below, without repeating any of them, such a way that the sum of the numbers in any two adjacent blocks is always a perfect square. [] [] [] [] [] [] [] [] [] [] [] [] [] [] [] A whole number is said to be a perfect square if it is equal to some whole number multiplied by itself. e.g. 36 (6*6), 121 (11*11) Answer [9] [7] [2] [14] [11] [5] [4] [12] [13] [3] [6] [10] [15] [1] [8] Find out all the possible pairs of the numbers from 1 to 15 that sum up to a perfect square. 1: (1,3), (1,8), (1,15) 2: (2,7), (2,14) 3: (3,6), (3,13) 4: (4,5), (4,12) 5: (5,4), (5,11) 6: (6,3), (6,10) 7: (7,2), (7,9) 8: (8,1) 9: (9,7) 10: (10,6), (10,15) 11: (11,5), (11,14) 12: (12,4), (12,13) 13: (13,3), (13,12) 14: (14,2), (14,11) 15: (15,1), (15,10) Note that there are 2 numbers that with just a one pair i.e. (8,1) and (9,7). Thus, 8 and 9 must be at the end. [9] [7] [] [] [] [] [] [] [] [] [] [] [] [1] [8] Now, 7 have only one other pair i.e. (7,2) [9] [7] [2] [] [] [] [] [] [] [] [] [] [] [1] [8] Similarly, there is only one other pair of 2 i.e. (2,14) [9] [7] [2] [14] [] [] [] [] [] [] [] [] [] [1] [8] Following the same procedure, the final solution is [9] [7] [2] [14] [11] [5] [4] [12] [13] [3] [6] [10] [15] [1] [8] =================================== Brain Teaser No : 00311 Replace the letters with the correct numbers. T W O X T W O --------- T H R E E Submitted by : Timmy Chan Answer T=1, W=3, O=8, H=9, R=2, E=4 1 3 8 x 1 3 8 ------------ 1 9 0 4 4 You can reduce the number of trials. T must be 1 as there is multiplication of T with T in hundred's position. Also, O can not be 0 or 1. Now, you have to find three digit number whose square satisfies above conditions and square of that has same last two digits. Hence, it must be between 102 and 139. ======================================= Brain Teaser No : 00319 Substitute digits for the letters to make the following relation true. S T I L L + W I T H I N -------------------- L I M I T S Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter S, no other letter can be 3 and all other S in the puzzle must be 3. Answer The value of L must be one more than W i.e. L=W+1 and there must be one carry from S+I=I. Also, the value of S must be 9 as S+I=I with one carry from T+T=M, which means that the value of T must be greater than 4. From I+H=I, the value of H must be 0 as the value of S is 9. Now, applying all those constraints and using trial-n-error, we get two possible answers. 9 7 1 6 6 9 8 5 3 3 + 5 1 7 0 1 3 + 2 5 8 0 5 6 --------------- --------------- 6 1 4 1 7 9 3 5 6 5 8 9 ========================================= Brain Teaser No : 00444 Silu and Meenu were walking on the road. Silu said, "I weigh 51 Kgs. How much do you weigh?" Meenu replied that she wouldn't reveal her weight directly as she is overweight. But she said, "I weigh 29 Kgs plus half of my weight." How much does Meenu weigh? Answer Meenu weighs 58 Kgs. It is given that Meenu weighs 29 Kgs plus half of her own weight. It means that 29 Kgs is the other half. So she weighs 58 Kgs. Solving mathematically, let's assume that her weight is X Kgs. X = 29 + X/2 2*X = 58 + X X = 58 Kgs ================================== Brain Teaser No : 00665 The three of us made some bets. First, Waldo won from Molly as much as Waldo had originally. Next, Molly won from Spike as much as Molly then had left. Finally, Spike won from Waldo as much as Spike then had left. We ended up having equal amounts of money. I started with 50 cents. Who am I? Answer I am Molly. Let Waldo start with W, Molly with M, and Spike with S. Following the above account we get the following progression of money: W = 2*W, M = M-W M = 2*(M-W), S = S-(M-W) = S+W-M S = 2*(S+W-M), W = 2*W-(S+W-M) = W+M-S And so Waldo finished with W+M-S, Molly with 2*(M-W), and Spike with 2*(S+W-M). Since these must all be equal, we have three equations and three unknowns, so solve; this gives us that 4*M = 5*S and 3*S = 4*W. Now, if S = 1/2 this implies that W = 3/8 = 37.5 cents, an impossible amount of money to start with. If W = 1/2 this implies that S = 2/3, again an impossible amount to start with. Finally, if M = 1/2 this implies that S = 2/5 = 40 cents, W = 3/10 = 30 cents, which works. It follows that I am Molly. ================================ Brain Teaser No : 00210 There are 10 cups placed on a table such that 3 are face up and 7 are bottom up. A move is defined as inverting a pair (compulsorily) of cups. What is the minimum number of moves required to make all the cups face the same way? Answer It is not at all possible. There is no way that one can do that with given Move. A move is defined as inverting a pair of cups, compulsorily. Also, there are odd number of cups face up (3)and odd number of cups bottom up (7). Now whenever you make a move you have to invert 2 cups compulsorily. Hence, always odd number of cups will be face up and bottom up, whatever move you make. ==================================== Brain Teaser No : 00366 There are three bulbs on 19th floor and there are three switches X, Y and Z on the ground floor. Each switch belongs to one bulbs, not necessarily in order. You can switch on or off as many times you want but you can go on 19th floor only once. How will you find out which swich belongs to which bulb? Note that you are the only person over there. You can't go outside and can't use any tools. Answer The bulb becomes hot, if you keep it on for some time. This is the characteristics of the bulb and we can use it to solve the teaser. Switch on the switch X and wait for some time say 10 minutes, then switch it off. Now switch on the switch Y and go up to the 19th floor and check the bulbs. The bulb which is hot but not lit corresponds to switch X. The bulb which is lit corresponds to switch Y. The third bulb which is not lit and is cold corresponds to switch Z. ===================================== Brain Teaser No : 00650 Laloo, Baloo and Naloo were at the Health Club on the same day this month. 1. They all joined the health club last month. 2. One of them goes every 2 days, another one goes every 3 days and the third one goes every 7 days. 3. Laloo went to the health club for the first time this month on a Monday, Baloo went to the health club for the first time this month on a Wednesday and Naloo went to the health club for the first time this month on a Friday. 4. Exactly one of them was at the health club on the first day of this month. On which day of this month did Laloo, Baloo and Naloo meet? Note that here "this month" means any one month in general. Answer They met on the 27th of this month. Find out individual dates on which they were at the club. From (2), 2-day man went to the health club for the first time this month on the 1st or 2nd. Also, 3-day man went to the health club for the first time this month on the 1st, 2nd or 3rd. There are two possible cases: Case I : Laloo went on Monday, the 1st and every two days thereafter. Baloo went on Wednesday, the 3rd and every three days thereafter. Naloo went on Friday, the 5th and every seven days thereafter. Then, Laloo's dates - 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31 Baloo's dates - 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 Naloo's dates - 5, 12, 19, 26 Case II : Baloo went on Wednesday, the 1st and every two days thereafter. Naloo went on Friday, the 3rd and every three days thereafter. Laloo went on Monday, the 6th and every seven days thereafter. Then, Baloo's dates - 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31 Naloo's dates - 3, 6, 9, 12, 15, 18, 21, 24, 27, 30 Laloo's dates - 6, 13, 20, 27 It is given that they were at the club on the same day this month, then Case I is not possible. And from Case II, they met on the 27th of this month. ======================================= Brain Teaser No : 00053 A man is going to an Antique Car auction. All purchases must be paid for in cash. He goes to the bank and draws out $25,000. Since the man does not want to be seen carrying that much money, he places it in 15 evelopes numbered 1 through 15. Each envelope contains the least number of bills possible of any available US currency (i.e. no two tens in place of a twenty). At the auction he makes a successful bid of $8322 for a car. He hands the auctioneer envelopes number(s) 2, 8, and 14. After opening the envelopes the auctioneer finds exactly the right amount. How many ones did the auctioneer find in the envelopes? Answer Each envelope contains the money equal to the 2 raised to the envelope number minus 1. The sentence "Each envelope contains the least number of bills possible of any available US currency" is only to misguide you. This is always possible for any amount !!! One more thing to notice here is that the man must have placed money in envelopes in such a way that if he bids for any amount less than $25000, he should be able to pick them in terms of envelopes. First envelope contains, 20 = $1 Second envelope contains, 21 = $2 Third envelope contains, 22 = $4 Fourth envelope contains, 23 = $8 and so on... Hence the amount in envelopes are $1, $2, $4, $8, $16, $32, $64, $128, $256, $512, $1024, $2048, $4096, $8192, $8617 Last envelope (No. 15) contains only $8617 as total amount is only $25000. Now as he bids for $8322 and gives envelope number 2, 8 and 14 which contains $2, $128 and $8192 respectively. Envelope No 2 conrains one $2 bill Envelope No 8 conrains one $100 bill, one $20 bill, one $5 bill, one $2 bill and one $1 bill Envelope No 14 conrains eighty-one $100 bill, one $50 bill, four $10 bill and one $2 bill Hence the auctioneer will find one $1 bill in the envelopes. ==================================== Brain Teaser No : 00140 One of Mr. Bajaj, his wife, their son and Mr. Bajaj's mother is an Engineer and another is a Doctor. * If the Doctor is a male, then the Engineer is a male. * If the Engineer is younger than the Doctor, then the Engineer and the Doctor are not blood relatives. * If the Engineer is a female, then she and the Doctor are blood relatives. Can you tell who is the Doctor and the Engineer? Answer Mr. Bajaj is the Engineer and either his wife or his son is the Doctor. Mr. Bajaj's wife and mother are not blood relatives. So from 3, if the Engineer is a female, the Doctor is a male. But from 1, if the Doctor is a male, then the Engineer is a male. Thus, there is a contradiction, if the Engineer is a female. Hence, either Mr. Bajaj or his son is the Engineer. Mr. Bajaj's son is the youngest of all four and is blood relative of each of them. So from 2, Mr. Bajaj's son is not the Engineer. Hence, Mr. Bajaj is the Engineer. Now from 2, Mr. Bajaj's mother can not be the Doctor. So the Doctor is either his wife or his son . It is not possible to determine anything further. =================================== Brain Teaser No : 00566 Here is the family tree of Mr. RAHUL RAHUL | --------------------------------------------- | | | | RATISH YASH OM TRILOK | | ? -------- ------------------ | | | | | AMAR AMIT RAM HARSH ASHOK | | ----- ------- | | | | | How many children does Mr. TRILOK have? Answer TRILOK have 5 children. Name of the person and number of his children are related by some pattern. Assign each vowel following values. A=0 E=1 I=2 O=3 U=4 The number of children to any person is the sum of the values represented by vowels in his name. RATISH = 0(A) + 2(I) = 2 OM = 3(O) = 3 AMIT = 0(A) + 2(I) = 2 ASHOK = 0(A) + 3(O) = 3 TRILOK = 2(I) + 3(O) = 5 Hence, TRILOK have 5 children. ====================================== Brain Teaser No : 00856 Find the least number which when divided by 35, leaves remainder 25; when divided by 45, leaves remainder 35 and when divided by 55, leaves remainder 45. Answer 3455 The answer is LCM of (35, 45, 55) minus 10. LCM of (35, 45, 55) is 3465. Hence, the answer is 3455. ============================= Brain Teaser No : 00094 There are 3 ants at 3 corners of a triangle, they randomly start moving towards another corner. What is the probability that they don't collide? Answer Let's mark the corners of the triangle as A,B,C. There are total 8 ways in which ants can move. 1. A->B, B->C, C->A
2. A->B, B->C, C->B
3. A->B, B->A, C->A
4. A->B, B->A, C->B
5. A->C, C->B, B->A
6. A->C, C->B, B->C
7. A->C, C->A, B->A
8. A->C, C->A, B->C
Out of which, there are only two cases under which the ants won't collide :
* A->B, B->C, C->A
* A->C, C->B, B->A
Therefore, probability of ants not colliding : 2/8 = 1/4
================================
Brain Teaser No : 00116
Complete the series :
5, 20, 24, 6, 2, 8, ?
Answer
12
Note the sequence of operations:
5 * 4 = 20
20 + 4 = 24
24 / 4 = 6
6 - 4 = 2
2 * 4 = 8
There is arithmatic operation on the current number to get next number in the series. The sequence of operations is *, +, / and - by 4.
So after multiplying by 4, next operation is addition of 4. So the next number is 8 + 4 = 12
=====================================
Brain Teaser No : 00219
The floor area of Milan's house is 1007 square feet. The space diagonal of the house s 59.75 feet.
What will be the height of the house? Note that floor is rectangle in shape. Also, length and width are integer.
Answer
20 feet
The floor area is 1007 square feet. The only possible floor dimension is 19 by 53. Thus the floor diagonal is 56.3 feet.
The space diagonal is 59.75 feet which makes right-angled triangle with floor diagonal and height. Hence, the height of the house is 20 feet.
===========================================
Brain Teaser No : 00456
B, J and P are related to each other.
1. Among the three are B's legal spouse, J's sibling and P's sister-in-law.
2. B's legal spouse and J's sibling are of the same sex.
Who is the married man?
Answer
J is the married man.
Note that a person's sister-in-law may be the wife of that person's brother or the sister of that person's spouse.
There are 2 cases:
1. If B's legal spouse is J, then J's sibling must be P and P's sister-in-law must be B.
2. If B's legal spouse is P, then P's sister-in-law must be J and J's sibling must be B.
It is given that B's legal spouse and J's sibling are of the same sex. Also, it is obvious
that P's sister-in-law is female. Then, B's legal spouse and J's sibling both must be
males.
B's spouse J's sibling P's sister-in-law
(male) (male) (female)
------------------------------------------------------
Case I J P B
Case II P B J
Case II is not possible as B & P are married to each other and both are male. Hence, J is
the married man.
====================================
Brain Teaser No : 00506
What is the last digit of 746? In other words, what will the remainder be, if 746 is
divided by 10?
Don't try to solve this on calculator, you may get the wrong answer. Also, do explain your
answer.
Answer
The last digit of 746 is 9.
The powers of any number have a repeating pattern for the last digit. It can be found
easily without performing the entire multiplication of each power.
Let's consider the powers of 7.
7N Value Last Digit
70 1 1
71 7 7
72 49 9
73 343 3
74 2401 1
75 16807 1
76 117649 1
Note that there is a repeating pattern of four numbers (1, 7, 9, 3) for the powers of 7.
Hence, the last digit of 744 will be 1, of 745 will be 7 and of 746 will be 9.
Also, there is no need to actually perform the entire multiplication. Start with 1,
multiply it by 7, discard all digits except units and multiply again by 7 and so on.
==============================
Brain Teaser No : 00259
What is the smallest number which when divided by 10 leaves a remainder of 9, when divided
by 9 leaves a remainder of 8, when divided by 8 leaves a remainder of 7, when divided by 7
leaves a remainder of 6 and so on until when divided by 2 leaves a remainder of 1?
Answer
The smallest such number is 2519.
The easiest way is to find the Least Common Multiple (LCM) of 2, 3, 4, 5, 6, 7, 8 and 9.
And subtract 1 from it.
The LCM of 2, 3, 4, 5, 6, 7, 8 and 9 is given by 2520. Hence, the required number is 2519.
=================================
Brain Teaser No : 00262
What TWO number will come next in the series :
6, -1, 7, -2, 8, -3, 9, -4, 10, -5, _, _
Submitted by : David
Answer
11 and -6
The pattern is : odd numbers are counting up from 6 and even numbers are counting down from
-1.
The other way is : 6-7+8-9+10-11+12-13+14-15+16-17 and so on.
=================================
Brain Teaser No : 00392
The cricket match between India and Pakistan was over.
* Harbhajan scored more runs than Ganguly.
* Sachin scored more runs than Laxman but less than Dravid
* Badani scored as much runs as Agarkar but less than Dravid and more than Sachin.
* Ganguly scored more runs than either Agarkar or Dravid.
Each batsman scored 10 runs more than his immediate batsman. The lowest score was 10 runs.
How much did each one of them score?
Answer
A simple one. Use the given facts and put down all the players in order. The order is as
follow with Harbhajan, the highest scorer and Laxman, the lowest scorer.
1. Harbhajan
2. Ganguly
3. Dravid
4. Badani, Agarkar
5. Sachin
6. Laxman
Also, as the lowest score was 10 runs. Laxman must have scored 10, Sachin 20, Badani &
Agarkar 30 and so on.
1. Harbhajan - 60 runs
2. Ganguly - 50 runs
3. Dravid - 40 runs
4. Badani, Agarkar - 30 runs each
5. Sachin - 20 runs
6. Laxman - 10 runs
=================================
Brain Teaser No : 00025
What is the remainder left after dividing 1! + 2! + 3! + â€¦ + 100! By 7?
Think carefully !!!
Answer
A tricky one.
7! onwards all terms are divisible by 7 as 7 is one of the factor. So there is no remainder
left for those terms i.e. remainder left after dividing 7! + 8! + 9! + ... + 100! is 0.
The only part to be consider is
= 1! + 2! + 3! + 4! + 5! + 6!
= 1 + 2 + 6 + 24 + 120 + 720
= 873
The remainder left after dividing 873 by 7 is 5
Hence, the remainder is 5.
====================================
Brain Teaser No : 00182
Subhash is 14 inches taller than Jatin. The difference between Subhash and Sanjeev is two
inches less than between Sanjeev and Jatin. Subhash at 6'6" is the tallest.
How tall are Sanjeev and Jatin?
Answer
Sanjeev is 6' and Jatin is 5'4"
It is given that Subhash at 6'6" is the tallest and also he is 14 inches taller than Jatin.
It means that Jatin is 5'4".
Now as the difference between Subhash and Sanjeev is two inches less than between Sanjeev
and Jatin, Sanjeev's height is more than Jatin's. And that is 6'.
Thus, Sanjeev is 6' and Jatin is 5'4".
==============================
Brain Teaser No : 00229
Difference between Bholu's and Molu's age is 2 years and the difference between Molu's and
Kolu's age is 5 years.
What is the maximum possible value of the sum of the difference in their ages, taken two at
a time?
Submitted by : Cake
Answer
The maximum possible value of the sum of the difference in their ages - taken two at a time
- is 14 years.
It is given that -
"Difference between Bholu's and Molu's age is 2 years"
"Difference between Molu's and Kolu's age is 5 years"
Now, to get the maximum possible value, the difference between Bholu's and Kolu's age
should be maximum i.e. Molu's age should be in between Bholu's and Kolu's age. Then, the
difference between Bholu's and Kolu's age is 7 years.
Hence, the maximum possible value of the sum of the difference in their ages - taken two at
a time - is (2 + 5 + 7) 14 years.
==================================
Brain Teaser No : 00574
Major Jasbir is forming five-person Special Task Group. The group must contain one leader,
two bomb-experts and two soldiers.
P, Q and R are possible bomb-experts. R, S and T are possible leaders. U, V and W are
possible soldiers. Also, P and R prefers to work with each other in the same team. T
prefers to work only if V works.
How many different possible Groups, Major Jasbir can make?
Answer
Major Jasbir can make 8 different possible groups.
As 2 bomb-experts to be selected from the given 3 and also P & R prefers to work together,
PR must be there in all the possible Groups. Also, T prefers to work only if V works. It
doesn't mean that V won't work without T.
Hence, possible groups are:
PR - S - UV
PR - S - VW
PR - S - WU
PR - T - UV
PR - T - VW
PQ - R - UV
PQ - R - VW
PQ - R - WU
Hence, there 8 different groups are possible.
=============================
Brain Teaser No : 00630
In a school, main-computer password changes after every hour based on set of words chosen
for each day. The following is the set of passwords for a particular day.
9AM-1st Password: is not ready cloth brain bath simple
10AM-2nd Password: ready not is cloth simple bath brain
11AM-3rd Password: cloth is not ready brain bath simple
12PM-4th Password: not is cloth ready simple bath brain
1PM-5th Password: ready cloth is not brain bath simple
Following the same rule, what will the 6th Password, if the 1st passoward is "Shy Shelly
Says She Shall Sew Sheets"?
Answer
The 6th Password will be "Shy She Says Shelly Sheets Sew Shall".
The pattern is - In the first step, the first three and the last three words are written in
a reverse order. Then, the first four and the last three words are written in a reverse
order. The process is repeated to obtain successive passwords.
9AM - 1st Password: Shy Shelly Says She Shall Sew Sheets
10AM - 2nd Password: Says Shelly Shy She Sheets Sew Shall
11AM - 3rd Password: She Shy Shelly Says Shall Sew Sheets
12PM - 4th Password: Shelly Shy She Says Sheets Sew Shall
1PM - 5th Password: Says She Shy Shelly Shall Sew Sheets
2PM - 6th Password: Shy She Says Shelly Sheets Sew Shall
==========================================
Brain Teaser No : 00655
Substitute digits for the letters to make the following addition problem true.
T H A T S
T H E
+ T H E O R Y
---------------------
A N Y W A Y
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one
mapping between digits and letters. e.g. if you substitute 3 for the letter Y, no other
letter can be 3 and all other Y in the puzzle must be 3.
Answer
T=8, H=6, A=9, S=7, E=3, O=2, R=4, Y=1, N=5, W=0
Its tough one and requires lots of trial-n-error. But it can be reduce from the following
deductions:
A = T + 1, T <> 1
S + E = 10
H + R = 10
one of (O, Y, N, W) is 0
H > 1
There are 8 possible values for (A,T) - (2,3), (3,4), (4,5), (5,6), (6,7), (7,8), (8,9)
Also, there are 4 possible value pairs for (S,E) and (H,R) - (1,9), (2,8), (3,7), (4,6),
but not necessarily in the same order.
Now, taking possible values of (A,T) one at a time and evaluating corresponding (S,E) and
(H,R) values, we can find the answer.
T H A T S 8 6 9 8 7
T H E 8 6 3
+ T H E O R Y + 8 6 3 2 4 1
--------------------- ---------------------
A N Y W A Y 9 5 1 0 9 1
===============================
Brain Teaser No : 00242
There is a shortage of tubelights, bulbs and fans in a village - Kharghar. It is found that
* All houses do not have either tubelight or bulb or fan.
* exactly 19% of houses do not have just one of these.
* atleast 67% of houses do not have tubelights.
* atleast 83% of houses do not have bulbs.
* atleast 73% of houses do not have fans.
What percentage of houses do not have tubelight, bulb and fan?
Answer
42% houses do not have tubelight, bulb and fan.
Let's assume that there are 100 houses. Hence, there should be total 300 items i.e. 100
tubelights, 100 bulbs and 100 fans.
From the given data, we know that there is shortage of atleast (67+83+73) 223 items in
every 100 houses.
Also, exactly 19 houses do not have just one item. It means that remaining 81 houses should
account for the shortage of remaining (223-19) 204 items. If those remaining 81 houses do
not have 2 items each, there would be a shortage of 162 items. But total of 204 items are
short. Hence, atleast (204-162) 42 houses do not have all 3 items - tubelight, bulb and
fan.
Thus, 42% houses do not have tubelight, bulb and fan.
=====================================
Brain Teaser No : 00248
A series comprising of alphabets contains only seven letters. The first five letters in the
given series are A, B, D, O, P
Can you find out the remaining two letters?
Answer
The remaining two letters are Q and R.
In the English Alphabet, there are only 7 uppercase letters with enclosed spaces or holes
in them. They are A, B, D, O, P, Q and R.
====================================
Brain Teaser No : 00255
Find next two numbers in the series:
60, 30, 20, 15, ?, ?
Answer
12 and 10
The pattern is 60 divide by the position of the number.
The first number is 60/1 = 60
The second number is 60/2 = 30
The third number is 60/3 = 20
The fourth number is 60/4 = 15
The fifth number is 60/5 = 12
The sixth number is 60/6 = 10
Hence the next two numbers in the series are 12 and 10.
======================================
Brain Teaser No : 00324
You have just built a house. However, you may only take certain items into the house. You
can take doors, but you aren't allowed any windows. You can't have, but you are allowed
coffee. A book is okay, but no paper. Finally, you can take a puppy or kitten, but you
can't take a dog or cat.
Give one more thing that you can/can't take, and explain why.
Submitted by : J W
Answer
Anything with double letters in spelling is allowed and without double letters is not
allowed.
If you you look at the spelling of the names of the items that are allowed in the house,
you will notice that they all have double letters i.e. DOOR, BOOK, PUPPY, KITTEN
So you can take items like Coffee, Balloon, Pillow.
================================
Brain Teaser No : 00620
Nicole and Sharon, together have more than 10 but fewer than 30 bodyguards. One day, one of
the bodyguards, Cruz, decided to leave Nicole and join Sharon. Now both the females had the
same number of bodyguards.
Eventually, Cruz rejoined Nicole. Also, Jim decided to leave Sharon and join Nicole. Now,
both the females had a prime number of bodyguards.
How many bodyguards did each have now?
Answer
Nicole have 11 bodyguards and Sharon have 7 bodyguards.
If one bodyguard is moved from one group to other, it decreases one group by one and
increases other by one.
Before Cruz joined Sharon, Nicole had two more bodyguards than Sharon. (Since Cruz's switch
made the number of bodyguards of both the females equal)
When Cruz switched back to Nicole, once again Nicole had two more bodyguards than Sharon.
Then, Jim moved from Sharon to Nicole decreasing Sharon's bodyguards by one and increasing
Nicole's bodyguards by one. Hence, Nicole had four more bodyguards than Sharon.
It is given that together had more than 10 but fewer than 30 bodyguards. Also, at the end
they both had prime number of bodyguards. The only numbers fit the given conditions are 7
and 11.
Hence, now Nicole have 11 bodyguards and Sharon have 7 bodyguards.
====================================
Brain Teaser No : 00784
The population of an island consists of two and only two types of people : the knights, who
invariably tell the truth and the knaves who always lie.
One day a stanger in the island, met four inhabitants. He asked the first one whether the
second was a Knight or a Knave. The reply was "Knave". Similarly, the second inhabitant
said that the third was a "Knave", and the third said the same about the fourth.
Now he asked the fourth inhabitant that what would the first have said about the third. The
reply once again was "Knave".
Who is the fourth inhabitant, Knight or Knave?
Answer
The fourth inhabitant is a Knave.
Take two cases.
Assume that the first inhabitant was a Knight. It means that second inhabitant was a Knave
as the first was telling the truth. Similarly, the third inhabitant was a Knight as the
second was lying. Inturn, the forth inhabitant was a Knave as the third was telling the
truth.
Now the first and the third both are Knight. So the first would have said "Knight" for the
third person. But the forth would have said "Knave" and he did. Hence, the fourth person
was Knave.
Tryout second case yourself i.e. assume that the first inhabitant was a Knave.
==============================
Brain Teaser No : 00085
You have 3 baskets, & each one contains exactly 4 balls, each of which is of the same size.
Each ball is either red, black, white, or purple, & there is one of each color in each
basket.
If you were blindfolded, & lightly shook each basket so that the balls would be randomly
distributed, & then took 1 ball from each basket, what chance is there that you would have
exactly 2 red balls?
Answer
There are 64 different possible outcomes, & in 9 of these, exactly 2 of the balls will be
red. There is thus a slightly better than 14% chance [(9/64)*100] that exactly 2 balls will
be red.
A much faster way to solve the problem is to look at it this way. There are 3 scenarios
where exactly 3 balls are red:
1 2 3
-----------
R R X
R X R
X R R
X is any ball that is not red.
There is a 4.6875% chance that each of these situations will occur.
Take the first one, for example: 25% chance the first ball is red, multiplied by a 25%
chance the second ball is red, multiplied by a 75% chance the third ball is not red.
Because there are 3 scenarios where this outcome occurs, you multiply the 4.6875% chance of
any one occurring by 3, & you get 14.0625%
==================================
Brain Teaser No : 00197
There are 70 employees working with BrainVista of which 30 are females. Also,
* 30 employees are married
* 24 employees are above 25 years of age
* 19 married employees are above 25 years, of which 7 are males
* 12 males are above 25 years of age
* 15 males are married.
How many unmarried females are there and how many of them are above 25?
Answer
15 unmarried females & none are above 25 years of age.
Simply put all given information into the table structure and you will get the answer.
Married Unmarried
Below 25 Above 25 Below 25 Above 25
Female 3 12 15 0
Male 8 7 20 5
=======================================
Brain Teaser No : 00370
You have 14 apples. Your Friend Marge takes away 3 and gives you 2. You drop 7 but pick up
4. Bret takes 4 and gives 5. You take one from Marge and give it to Bret in exchange for 3
more. You give those 3 to Marge and she gives you an apple and an orange. Frank comes and
takes the apple Marge gave you and gives you a pear. You give the pear to Bret in exchange
for an apple. Frank then takes an apple from Marge, gives it to Bret for an orange, gives
you the orange for an apple.
How many pears do you have?
Submitted by : Big Mike
Answer
None
Frank gave you a pear in exchange of the apple which Marge gave you. And you gave that pear
to Bret in exchange for an apple. All the others exchanges involved apples and/or organges.
================================
Brain Teaser No : 00403
There are N secret agents each know a different piece of secret information. They can
telephone each other and exchange all the information they know. After the telephone call,
they both know anything that either of them knew before the call.
What are the minimum number of telephone calls needed so that all of the them know
everything?
Answer
(2N - 3) telephone calls, for N = 2,3
(2N - 4) telephone calls, for N > 3
Divide the N secret agents into two groups. If N is odd, one group will contain one extra
agent.
Consider first group: agent 1 will call up agent 2, agent 2 will call up agent 3 and so on.
Similarly in second group, agent 1 will call up agent 2, agent 2 will call up agent 3 and
so on. After (N - 2) calls, two agents in each the group will know anything that anyone
knew in his group, say they are Y1 & Y2 from group 1 and Z1 & Z2 from group 2.
Now, Y1 will call up Z1 and Y2 will call up Z2. Hence, in next two calls total of 4 agents
will know everything.
Now (N - 4) telephone calls are reqiured for remaining (N - 4) secret agents.
Total telephone calls require are
= (N - 2) + 2 + (N - 4)
= 2N - 4
Let\'s take an example. Say there are 4 secret agents W, X, Y & Z. Divide them into two
groups of 2 each i.e. (W, X) and (Y, Z). Here, 4 telephone calls are required.
1. W will call up X.
2. Y will call up Z.
3. W, who knows WX will call up Y, who knows YZ.
4. X, who knows WX will call up Z, who knows YZ.
Take an another example. Say there are 5 secret agents J, K, L, M & N. Divide them into two
groups i.e. (J, K) and (L, M, N). Here, 6 telephone calls are required.
1. J will call up K.
2. L will call up M.
3. M will call up N. Now M and N know LMN.
4. J, who knows JK will call up M, who knows LMN.
5. K, who knows JK will call up N, who knows LMN.
6. L will call up to anyone of four.
=====================================
Brain Teaser No : 00450
Yesterday in a party, I asked Mr. Shah his birthday. With a mischievous glint in his eyes
he replied. "The day before yesterday I was 83 years old and next year I will be 86."
Can you figure out what is the Date of Birth of Mr. Shah? Assume that the current year is
2000.
Answer
Mr. Shah's date of birth is 31 December, 1915
Today is 1 January, 2000. The day before yesterday was 30 December, 1999 and Mr. Shah was
83 on that day. Today i.e. 1 January, 2000 - he is 84. On 31 December 2000, he will be 85
and next year i.e. 31 December, 2001 - he will be 86. Hence, the date of birth is 31
December, 1915.
Many people do think of Leap year and date of birth as 29th February as 2000 is the Leap
year and there is difference of 3 years in Mr. Shah's age. But that is not the answer.
==================================
Brain Teaser No : 00559
If you were to dial any 7 digits on a telephone in random order, what is the probability
that you will dial your own phone number?
Assume that your telephone number is 7-digits.
Submitted by : Alessandro Tabora
Answer
1 in 10,000,000
There are 10 digits i.e. 0-9. First digit can be dialed in 10 ways. Second digit can be
dialed in 10 ways. Third digit can be dialed in 10 ways. And so on.....
Thus, 7-digit can be dialed in 10*10*10*10*10*10*10 (=10,000,000) ways. And, you have just
one telephone number. Hence, the possibility that you will dial your own number is 1 in
10,000,000.
Note that 0123456 may not be a valid 7-digit telephone number. But while dialing in random
order, that is one of the possible 7-digit number which you may dial.
===================================
Brain Teaser No : 00200
An apple vendor has 1000 apples and 10 empty boxes. He asks his son to place all the 1000
apples in all the 10 boxes in such a manner that if he asks for any number of apples from 1
to 1000, his son should be able to pick them in terms of boxes.
How did the son place all the apples among the 10 boxes, given that any number of apples
can be put in one box.
Answer
1, 2, 4, 8, 16, 32, 64, 128, 256, 489
Let's start from scratch.
* The apple vandor can ask for only 1 apple, so one box must contain 1 apple.
* He can ask for 2 apples, so one box must contain 2 apples.
He can ask for 3 apples, in that case box one and box two will add up to 3.
* He can ask for 4 apples, so one box i.e. third box must contain 4 apples.
* Now using box number one, two and three containing 1, 2 and 4 apples respectively,
his son can give upto 7 apples. Hence, forth box must contain 8 apples.
* Similarly, using first four boxes containing 1, 2, 4 and 8 apples, his son can give
upto 15 apples. Hence fifth box must contain 16 apples.
* You must have noticed one thing till now that each box till now contains power of 2
apples. Hence the answer is 1, 2, 4, 8, 16, 32, 64, 128, 256, 489. This is true for any
number of apples, here in our case only upto 1000.
====================================
Brain Teaser No : 00170
A series comprising of alphabets contains 13 letters. The first seven letters in the given
series are A, E, F, H, I, L, M
Can you find the next two letters?
Answer
The next letters in the series are N, O, R, S, U, X.
The pattern is - letters whose English names (Phonetic Pronunciations) start with vowels.
=================================
Brain Teaser No : 00271
Substitute digits for the letters to make the following Division true
O U T
-------------
S T E M | D E M I S E
| D M O C
-------------
T U I S
S T E M
----------
Z Z Z E
Z U M M
--------
I S T
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one
mapping between digits and letters. e.g. if you substitute 3 for the letter M, no other
letter can be 3 and all other M in the puzzle must be 3.
Submitted by : Calon
Answer
C=0, U=1, S=2, T=3, O=4, M=5, I=6, Z=7, E=8, D=9
It is obvious that U=1 (as U*STEM=STEM) and C=0 (as I-C=I).
S*O is a single digit and also S*T is a single digit. Hence, their values (O, S, T) must be
2, 3 or 4 (as they can not be 0 or 1 or greater than 4).
Consider, STEM*O=DMOC, where C=0. It means that M must be 5. Now, its simple. O=4, S=2,
T=3, E=8, Z=7, I=6 and D=9.
O U T 4 1 3
------------- -------------
S T E M | D E M I S E 2 3 8 5 | 9 8 5 6 2 8
| D M O C | 9 5 4 0
------------- -------------
T U I S 3 1 6 2
S T E M 2 3 8 5
---------- ----------
Z Z Z E 7 7 7 8
Z U M M 7 1 5 5
-------- --------
I S T 6 2 3
Also, when arranged from 0 to 9, it spells CUSTOMIZED.
=========================================
Brain Teaser No : 00180
Which number in the series does not fit in the given series:
1 4 3 16 6 36 7 64 9 100
Answer
This is a series with odd positions containing position number whereas even positions
containing square of the position.i.e. even position numbers are 4 16 36 64 100 and odd
position numbers are 1 3 5 7 9
Hence, 6 does not fit in the series. It should be 5.
=========================================
Brain Teaser No : 00194
Sita says to Gita, "I have 3 sons. They are all less than 10 years in age and all are of
different age. The product of the ages of the two younger brothers is equal to the age of
the eldest brother. Also, the sum of their ages is a Prime number."
How old is the eldest son?
Answer
The eldest son is 6 years old.
First list out all combinations of three numbers such that all of them are less than 10 and
product of first two is third number. There are only 3 combination.
2 2 4
2 3 6
2 4 8
3 3 9
Also, note that age of the younger brother can not be 1 year. As in that case other two
will be twins and it is mentioned in teaser that "the eldest brother" i.e. there is only
one brother with the eldest age.
Now check fo the second condition i.e. the sum of their ages is a Prime number.
2 + 2 + 4 = 8
2 + 3 + 6 = 11
2 + 4 + 8 = 14
3 + 3 + 9 = 15
11 is the Prime number. Hence, the required combination is 2, 3 and 6. The eldest son is 6
years old.
==================================
Brain Teaser No : 00754
Mark ate half of a pizza on Monday. He ate half of what was left on Tuesday and so on. He
followed this pattern for one week.
How much of the pizza would he have eaten during the week?
Submitted by : Ashley Krapf
Answer
Mark would have ate 127/128 (99.22%) of the pizza during the week.
Mark ate half the pizza on Monday. On Tuesday, he would have ate half of the remaining
pizza i.e. 1/4 of the original pizza. Similarly, he would have ate 1/8 of the original
pizza on Wednesday and so on for the seven days.
Total pizza Mark ate during the week is
= 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128
= 127/128
= 99.22% of the original pizza
================================
Brain Teaser No : 00087
Find the next number in the series 11 12 20 23 33 46 .....
Answer
All the numbers given are the fibonacci numbers in increasing bases starting 2 !!!
Therefore,
11 = 3 base 2
12 = 5 base 3
20 = 8 base 4
23 = 13 base5 etc ...
Answer = 67 which is 55 base 8
(Fibonacci series : 2, 3, 5, 8, 13, 21, 34, 55, 89..... where next number is sum of the
previous to numbers.)
===================================
Brain Teaser No : 00108
Substitute digits for the letters to make the following relation true.
S O M E
+ G O O D
----------
I D E A S
Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one
mapping between digits and letters. e.g. if you substitute 3 for the letter S, no other
letter can be 3 and all other S in the puzzle must be 3.
Answer
By just looking at the teaser, one can guess that I must be 1.
Now, take the right side of the teaser i.e. E + D = S and take the left side of the teaser
i.e. S + G = D. Here note that S + G should be greater than 11 as E or D can not be 0 (E +
D = S) and I is 1.
With trial and error, and also by applying such constraints, we get
8 7 9 5
+ 4 7 7 3
----------
1 3 5 6 8
==============================
Brain Teaser No : 00117
I bought a car with a peculiar 5 digit numbered licence plate which on reversing could
still be read. On reversing value is increased by 78633.
Whats the original number if all digits are different?
Answer
Only 0 1 6 8 and 9 can be read upside down. So on rearranging these digits we get the
answer as 10968.
================================
Brain Teaser No : 00120
Replace each letter by a digit. Each letter must be represented by the same digit and no
beginning letter of a word can be 0.
O N E
O N E
O N E
+ O N E
-------
T E N
Answer
Use trial and error. 0 =1, N = 8 ,E = 2, T = 7
1 8 2
1 8 2
1 8 2
+ 1 8 2
------
7 2 8
===================================
Brain Teaser No : 00471
SlowRun Express runs between Bangalore and Mumbai, For the up as well as the down journey,
the train leaves the starting station at 10:00 PM everyday and reaches the destination at
11:30 PM after three days.
Mr. Haani once travelled by SlowRun Express from Mumbai to Bangalore. How many SlowRun
Express did he cross during his journey?
Answer
Mr. Haani crossed 7 SlowRun Expresses during his journey.
Let's say that Mr. Haani travelled by SlowRun Express on Wednesday 10:00PM from Mumbai. The
first train he would have crossed is the one scheduled to arrive at Mumbai at 11:30 PM the
same day i.e. the one that left Bangalore at 10:00 PM on last Sunday.
Also, he would have crossed the last train just before reaching Bangalore on Saturday.
Thus, Mr. Haani must have crossed 7 SlowRun Expresses during his journey.
===================================
Brain Teaser No : 00039
Find next number in the series :
3, 7, 31, 211, ?
Answer
1831
All the numbers in the series are Prime Numbers. So the next number will also be a prime
number.
Two consecutive numbers in the series
(A and B) Total Prime numbers bewtween A and B
(C) Prime number just before B
(D) E = (C + D)
3 and 7 1 5 6
7 and 31 6 29 35
31 and 211 35 199 234
* Number after 7 is the prime number on skipping 6 prime numbers after 7 i.e. 31
* Number after 31 is the prime number on skipping 35 prime numbers after 31 i.e. 211
* Hence, number after 211 is the prime number on skipping 234 prime numbers after 211
i.e. 1831
The other possible answer is 1891.
Subtract 1 from each number in the given series: 2, 6, 30, 210
First number = 2*1 = 2
Second number = 2*3 = 6
Third number = 6*5 = 30
Fourth number = 30*7 = 210
Fifth number = 210*9 = 1890
Sixth number = 1890*11 = 20790
Thus, the pattern is : multiply previous number by next odd number and add one to the
multiplication. Thus, the series is 3, 7, 31, 211, 1891, 20791, ...
Thanks to N. Anand for this much more simpler answer.
====================================
Brain Teaser No : 00047
The ratio of Boys to Girls is 6:4. 60% of the boys and 40% of the girls take lunch in the
canteen. What % of class takes lunch in canteen?
Answer
Assume there are 6X boys and 4X Girls
Total Students taking lunch in canteen
= (6X)(60/100) + (4X)(40/100)
= 36(X/10) + 16(X/10)
= 52(X/10)
Total students are = 6X + 4X = 10X
% of class taking lunch in canteen
= ((52X/10) * 100 ) / 10X
= 52 %
===================================
Brain Teaser No : 00699
Here in England McDonald's has just launched a new advertising campaign. The poster shows 8
McDonald's products and underneath claims there are 40312 combinations of the above items.
Given that the maximum number of items allowed is 8, and you are allowed to have less than
8 items, and that the order of purchase does not matter (i.e. buying a burger and fries is
the same as buying fries and a burger)
How many possible combinations are there? Are McDonald's correct in claiming there are
40312 combinations?
Submitted by : Alex Crosse
Answer
Total possible combinations are 12869.
It is given that you can order maximum of 8 items and you are allowed to have less than 8
items. Also, the order of purchase does not matter. Let's create a table for ordering total
N items using X products.
Items
Ordered
(N) Products Used (X)
1 2 3 4 5 6 7 8
1 1 - - - - - - -
2 1 1 - - - - - -
3 1 2 1 - - - - -
4 1 3 3 1 - - - -
5 1 4 6 4 1 - - -
6 1 5 10 10 5 1 - -
7 1 6 15 20 15 6 1 -
8 1 7 21 35 35 21 7 1
Total (T) 8 28 56 70 56 28 8 1
Ways to choose
X products from
8 products (W) 8C1 8C2 8C3 8C4 8C5 8C6 8C7 8C8
Total combinations
(T*W) 64 784 3136 4900 3136 784 64 1
Thus, total possible combinations are
= 64 + 784 + 3136 + 4900 + 3136 + 784 + 64 + 1
= 12869
=================================
Brain Teaser No : 00003
In a hotel, rooms are numbered from 101 to 550. A room is chosen at random. What is the
probability that room number starts with 1, 2 or 3 and ends with 4, 5 or 6?
Answer
There are total 450 rooms.
Out of which 299 room number starts with either 1, 2 or 3. (as room number 100 is not
there) Now out of those 299 rooms only 90 room numbers end with 4, 5 or 6
So the probability is 90/450 i.e. 1/5 or 0.20
=================================
Brain Teaser No : 00015
In the town called Alibaug, the following facts are true:
* No two inhabitants have exactly the same number of hairs.
* No inhabitants has exactly 2025 hairs.
* There are more inhabitants than there are hairs on the head of any one inhabitants.
What is the largest possible number of the inhabitants of Alibaug?
Answer
2025
It is given that no inhabitants have exactly 2025 hairs. Hence there are 2025 inhabitants
with 0 to 2024 hairs in the head.
Suppose there are more than 2025 inhabitants. But these will violate the condition that
"There are more inhabitants than there are hairs on the head of any one inhabitants." As
for any number more than 2025, there will be same number of inhabitants as the maximum
number of hairs on the head of any inhabitant.
=======================================
Brain Teaser No : 00035
In a sports contest there were m medals awarded on n successive days (n > 1).
1. On the first day 1 medal and 1/7 of the remaining m - 1 medals were awarded.
2. On the second day 2 medals and 1/7 of the now remaining medals was awarded; and so
on.
3. On the nth and last day, the remaining n medals were awarded.
How many days did the contest last, and how many medals were awarded altogether?
Answer
Total 36 medals were awarded and the contest was for 6 days.
On day 1: Medals awarded = (1 + 35/7) = 6 : Remaining 30 medals
On day 2: Medals awarded = (2 + 28/7) = 6 : Remaining 24 medals
On day 3: Medals awarded = (3 + 21/7) = 6 : Remaining 18 medals
On day 4: Medals awarded = (4 + 14/7) = 6 : Remaining 12 medals
On day 5: Medals awarded = (5 +7/7) = 6 : Remaining 6 medals
On day 6: Medals awarded 6
I got this answer by writing small program. If anyone know any other simpler method, do
submit it.
==================================
Brain Teaser No : 00330
The secret agent X emailed a code word to his head office. They are "AIM DUE OAT TIE MOD".
But four of these five words are fake and only one contains the information.
The agent X also mailed a sentence as a clue - if I tell you any one character of the code
word, you would be able to tell the number of vowels in the code word.
Can you tell which is the code word?
Answer
The code word is TIE.
If you were told any one character of MOD, then you would not be able to determine whether
the number of vowels are one or two. e.g. if you were told M, there are two words with M -
AIM with 2 vowels and MOD with 1 vowel. So you would not be able to say the number of
vowels. Same arguments can be given for characters O and D.
Hence, the word with any one of M, O or D is not a code word i.e. AIM, DUE, OAT and MOD are
not the code word. Thus, TIE is the code word.
T : two words - TIE and OAT, both with 2 vowels
I : two words - TIE and AIM, both with 2 vowels
E : two words - TIE and DUE, both with 2 vowels.
==================================
Brain Teaser No : 00520
Somebody marked the six faces of a die with the numbers 1, 2 and 3 - each number twice. The
die was put on a table. Four people - Abu, Babu, Calu and Dabu - sat around the table so
that each one was able to see only three sides of the die at a glance.
* Abu sees the number 1 and two even numbers.
* Babu and Calu can see three different numbers each.
* Dabu sees number 2 twice and he can't remember the third number.
What number is face down on the table?
Answer
Number 3 is face down on the table.
If Abu can see two even numbers i.e. number 2 twice, and if Dabu can see number 2 twice,
then number 2 must be facing up.
Now everything else is simple. (see the following diagram)
Dabu Abu
1
3 2 2
1
Calu Babu
Thus, the number hidden from the view is number 3 and hence the answer.
========================================
Brain Teaser No : 00291
A drinks machine offers three selections - Tea, Coffee or Random (Either tea or Coffee) but
the machine has been wired up wrongly so that each button does not give what it claims.
If each drink costs 50p, how much minimum money do you have to put into the machine to work
out which button gives which selection?
Submitted by : Alex Crosse
Answer
You have to put just 50p.
Put 50p and push the button for Random. There are only 2 possibilities. It will give either
Tea or Coffee.
* If it gives Tea, then the button named Random is for Tea. The button named Coffee is
for Random selection. And the button named Tea is for Coffee.
* If it gives Coffee, then the button named Random is for Coffee. The button named Tea
is for Random selection. And the button named Coffee is for Tea.
Thus, you can make out which button is for what by putting just 50p and pressing Random
selection first.
===============================
Brain Teaser No : 00298
Which of the following numbers is the odd one out, and why?
1, 2, 3, 5, 9, 13, 21
Note that 2 is not the odd one.
Submitted by : Brett Hurrell
Answer
The odd number is 9.
It is a Fibonacci Series - a series in which next number is summation of previous 2
numbers.
The first two numbers are 1 and 2.
Third number is = 1 + 2 = 3
Fourth number is 3 + 5 = 8
Fifth number is 5 + 8 = 13
Sixth number is 8 + 13 = 21
Hence 9 is the odd number It should 8.
===================================
Brain Teaser No : 00315
A farmer built a fence around his 25 cows in a square region. He built it in such a way
that one can see 5 poles from either of the four sides.
What are the minimum number of poles the farmer must have used?
Answer
16 poles
X X X X X
X X
X X
X X
X X X X X
One pole at each corner and three poles along each side so that one can always see 5 poles
from either of the four sides. The corner pole is shared by two sides and hence reducing
the number of poles to 16.
==============================
Brain Teaser No : 00579
Mr. Wagle goes to work by a bus. One day he falls asleep when the bus still has twice as
far to go as it has already gone.
Halfway through the trip he wakes up as the bus bounces over some bad potholes. When he
finally falls asleep again, the bus still has half the distance to go that it has already
travelled. Fortunately, Mr. Wagle wakes up at the end of his trip.
What portion of the total trip did Mr. Wagle sleep?
Answer
Mr. wagle slept through half his trip.
Let's draw a timeline. Picture the bus route on a line showen below:
---------------- ________ -------- ________________
Start 1/3 1/2 2/3 End
----- shows time for which Mr. Wagle was not sleeping
_____ shows time for which Mr. Wagle was sleeping
When Mr. Wagle fell asleep the first time, the bus sill had twice as far to go as it had
already gone, that marks the first third of his trip.
He wake up halfway through the trip i.e slept from 1/3 mark to the 1/2 mark. He fell sleep
again when the bus still had half the distance to go that it had already traveled i.e 2/3
mark.
Adding up, all sleeping times,
= (1/2 - 1/3) + (1 - 2/3)
= 1/6 + 1/3
= 1/2
Hence, Mr. wagle slept through half his trip.
============================
Brain Teaser No : 00153
In a Road Race, one of the three bikers was doing 15km less than the first and 3km more
than the third. He also finished the race 12 minutes after the first and 3 minutes before
the third.
Can you find out the speed of each biker, the time taken by each biker to finish the race
and the length of the course?
Assume that there were no stops in the race and also they were driving with constant speeds
through out the race.
Answer
Let us assume that
Speed of First biker = V1 km/min
Speed of Second biker = V2 km/min
Speed of Third biker = V3 km/min
Total time take by first biker = T1 min
Total distance = S km
Now as per the data given in the teaser, at a time T min
X1 = V1 * T ----> 1
X1 - 15 = V2 * T ----> 2
X1 - 18 = V3 * T ----> 3
At a Distance S Km.
S = V1 * T1 ----> 4
S = V2 * (T1 + 12) ----> 5
S = V3 * (T1 + 15) ----> 6
Thus there are 6 equations and 7 unknown data that means it has infinite number of
solutions.
By solving above 6 equations we get,
Time taken by first biker, T1 = 60 Min.
Time taken by Second biker, T2 = 72 Min.
Time taken by first biker, T3 = 75 Min.
Also, we get
Speed of first biker, V1 = 90/T km/min
Speed of second biker, V2 = (5/6)V1 = 75/T km/min
Speed of third biker, V3 = (4/5)V1 = 72/T km/min
Also, the length of the course, S = 5400/T km
Thus, for the data given, only the time taken by each biker can be found i.e. 60, 72 and 75
minutes. For other quantities, one more independent datum is required i.e. either T or V1
or V2 or V3
Thanks to Theertham Srinivas for the answer !!!
==========================================
Brain Teaser No : 00313
A group of friends went on a holiday to a hill station. It rained for 13 days. But when it
rained in the morning, the afternoon was lovely. And when it rained in the afternoon, the
day was preceded by clear morning.
Altogether there were 11 very nice mornings and 12 very nice afternoons. How many days did
their holiday last?
Answer
The holiday last for 18 days.
Let's assume the number of days as follows:
Rain in the morning and lovely afternoon = X days
Clear morning and rain in the afternoon = Y days
No rain in the morning and in the afternoon = Z days
Number of days with rain = X + Y = 13 days
Number of days with clear mornings = Y + Z = 11 days
Number of days with clear afternoons = X + Z = 12 days
Solving above 3 equations, we get X = 7, Y = 6 and Z = 5
Hence, total number of days on holiday = 18 days

GMAT-overview

2007-07-29T00:43:00.001-07:00

Graduate Management Admission Test. The GMAT is required for admission to business school. This computerized test is offered year-round, but only in the last 3 weeks of every calendar month. It tests students on verbal skills, quantitative skills (math) and analytical writing skills

About the GMAT (Graduate Management Aptitude Test)

The GMAT is only available as a computer adaptive test (CAT) that adapts to your performance as you take the test. The test is no longer available as a paper and pencil exam.

The GMAT Test is a multiple-choice test that most business schools use for admission into their graduate programs.

The Graduate Management Admission Test® (GMAT®) consists of three main parts, the Analytical Writing Assessment, Quantitative section, and Verbal section.

Analytical Writing Assessment (30 + 30 mins = 1 hour)

The GMAT begins with the Analytical Writing Assessment (AWA). The AWA consists of two separate writing tasks. Analysis of an Issue and Analysis of an Argument. Test takers are allowed 30 minutes to complete each essay.

Quantitative Section (37 questions; 75 minutes)

The AWA is followed by an optional five-minute break, hich is followed by the Quantitative section of the GMAT. This section contains 37 multiple-choice questions of two question types

Data Sufficiency and
Problem Solving.

Test takers are allowed a maximum of 75 minutes to complete the entire section.

Verbal Section(41 questions; 75 minutes)

After a second optional five-minute break, the Verbal Section of the GMAT begins. This section contains 41 multiple-choice questions of three question types

Reading Comprehension
Critical Reasoning and
Sentence Correction.

Test takers are allowed a maximum of 75 minutes to complete the entire section.

GMAT Scoring Pattern

The Graduate Management Admission Test® (GMAT®) yields four scores

Verbal (Scores range from 0 to 60)
Quantitative (Scores range from 0 to 60)
Total (Scores range from 200 to 800) and
Analytical Writing Assessment (Scores range from 0 to 6 in half-point intervals).

Each of these scores is reported on a fixed scale and will appear on the official GMAT score reports that you and your designated score recipients (schools) receive.

Scores below 9 and above 44 for the Verbal section or below 7 and above 50 for the Quantitative section are rare. Both scores are on a fixed scale and can be compared across any GMAT administration. And two-thirds of test takers score between 400 and 600.

WHY USE THE GMAT?

Thousands of graduate management programs around the world use the Graduate Management Admission Test® in their admissions process. You may be considering whether your program should adopt the GMAT® exam, as well.

The GMAT is an invaluable tool for admissions professionals.

Interest in graduate management education has never been higher, and the job of selecting a class to fill the limited capacity of most MBA programs has never been more challenging. The applicants come from different countries, cultures, academic backgrounds, and levels of work experience. Using the GMAT® exam gives admissions professionals one element of the application that is a consistent measure. The GMAT® exam is given under standard conditions around the world, with the highest level of security, to ensure that scores are comparable across applicants.

The GMAT is a valid predictor of academic success for all kinds of applicants.

The GMAT® exam was created to measure the academic abilities needed to succeed in graduate management education. Over the 50 years of its use, the GMAT® has been repeatedly studied, tested, and modified to ensure that it continues to help predict performance in the first year or midway through a graduate management program.

Using the GMAT allows you to increase the objectivity in your admission process.

When you use the GMAT® in your program, you can participate in the Validity Study Service (VSS) at no charge. The VSS allows you to study the statistical relationship among GMAT® scores, other admissions criteria, and academic success in your program. A validity study helps to ensure that you are making the best admissions decisions and provides a specific, fact-based rationale in the event that applicants, faculty, or administrators have questions about how you made your admission decisions.

WHAT's GMAT CAT?

The Graduate Management Admission Test® (GMAT®) is a standardized test conducted by the Educational Testing Service, ETS on behalf of the Graduate Management Admission Council of the US. The scores of these tests are used as one of the most important parameters by Universities and top B Schools in the US and elsewhere while selecting prospective students into their MBA and Ph.D programs.

The structure of GMAT CAT

The GMAT Computer Adaptive Test or the GMAT CAT comprises three sections. Each of the three sections is separately timed.

The first section of the GMAT test is an essay writing section and is known as the Analytical Writing Assessment Section (GMAT AWA Section). The next two sections in the GMAT test are objective type sections, one of which is the Quantitative section and the other is the Verbal section.

Section 1.a - Analysis of an Issue (30 min)

The first section in GMAT-CAT is an analytical writing task and has to be completed in the first 30 minutes. In this section, the candidate is expected to analyse an issue, take a position and support it using relevant reasons and examples from his or her own experience, observation, or reading.

Section 1.b - Analysis of an Argument (30 min)

The second section in GMAT-CAT is also an assesment of analytical writing skills and is to be completed during the next 30 minutes. In this task, the candidate has to analyse how logically persuasive the argument presented in the question is?

Section 2 - Quantitative Section (75 min) - 37 questions

This section (Quantitative) consists of multiple-choice questions delivered in a computer-adaptive format. Questions in this sections are dynamically selected as you take the test. Therefore, your test will be unique, and the multiple-choice questions will adjust to your ability level. A total of 37 questions are served in this section and comprise two types of questions within this section viz., Problem Solving and Data Sufficiency.

Section 3 - Verbal Section (75 min) - 41 questions

The last section in GMAT - CAT is the Verbal section. This one is also a multiple-choice section delivered in a computer-adaptive format. There are three types of questions in this section viz., Reading Comprehension, Sentence Correction and Critical Reasoning.

At the end of the GMAT test, you will be given an unofficial score for the second and third section (i.e. the multiple choice Quantitative and Verbal sections). The official GMAT scores that include your performance in the Analytical Writing Assessment will be sent by mail to you a few weeks after you have taken the GMAT test.

The scores in the quant section and the verbal section of the GMAT test are cumulatively graded and represented on a scale of 200 to 800. Your performance in the GMAT AWA sections is rated on a scale of 1 to 6.

GMAT TESTING CENTRES:

The Graduate Management Admission Test® (GMAT®) is now a computer adaptive test in most countries and can be taken all round the year. GMAT is held in more than over 100 countries.

CENTRES IN INDIA:

Ahmedabad (8902) Prometric Testing (P) Ltd. 301-302, Abhijeet-II, Mitha Kali, 6 Road, Ellisbridge, Ahmedabad Ph: 91-79-6561088	Allahabad (8903) Prometric Testing (P) Ltd. 119/25A, Mahatma Gandhi Marg, Civil Lines, Allahabad – 211001 Ph: 91-532-2622477
Bangalore (8904) Prometric Testing (P) Ltd. Maini Sadan, 1st Floor, No 38 Lavelle Road, 7th Cross, Bangalore – 560001 Ph: 91-80-2292553 / 54	Calcutta (8906) Prometric Testing (P) Ltd. Flat 1/C, 1st Floor, Sukh Sagar Bldg, Sarat Bose Road, Calcutta – 700020 Ph: 91-33-24852792
Chennai (8909) Prometric Testing (P) Ltd. No 15, 2nd Floor, Romar House, Jagannathan Road, Nugambakkam, Chennai – 600034 Ph: 91-44-28241875	Hyderabad (8908) Prometric Testing (P) Ltd. Avenue 1, Street 20, Plot 1672, Road 12, Banjara Hills Hyderabad – 500034 Ph: 91-40-23308504
Mumbai (8921) Prometric Testing (P) Ltd. Marwah House, Saki Vihar Road, Saki Naka, Andheri (E) Mumbai – 400072 Ph: 91-22-28573160 / 28573171	Trivandrum (8912) Prometric Testing (P) Ltd. PTC Towers, 2nd Floor, SS Coil Road, Thampanoor, Trivandrum – 695001 Ph: 91-471-2338662
New Delhi (8911) Prometric Testing (P) Ltd. Senior Plaza, 160-A, 3rd floor, Gautam nagar, Yusuf Sarai, Behind Indian Oil Building, New Delhi-110049, India. Ph: (011) 26511649, 26531442

GMAT FAQ's:

What exactly is computer-based testing (CBT)?

In CBT, you appear for an exam that is conducted entirely on the computer. The multiple-choice questions appear on the computer screen along with the answer choices, and you have to indicate your answer choice by clicking the mouse at the appropriate place.

In what respects does CBT differ from Paper-based testing (PBT)?

Other than the fact that the mouse does the work of a pen in case of CBT, the two differ on the following counts :

Question/Time Ratio : The CBT allows more time per question as compared to PBT, having a fewer number of questions than the PBT.

Scores : In CBT, you get to know your score immediately on completion of the test. Official score reports, however, are sent to you later by post, just as in case of PBT.

Skipping questions : Unlike PBT, the CBT does not allow you to leave a question unanswered. You must attempt a question in order to get to the next one. And once you have answered a question, you cannot go back to it.

Adaptive Testing : This is probably the most important difference between the two kinds of tests. The CBT software is such that the level of difficulty of your next question depends on the correctness of your previous response. In other words, no two tests are alike - each examinee will get a different set of questions to attempt based on his or her ability level. (More on adaptive testing in the next question).

How does the computer-adaptive test work?

In a computer-adaptive test, the computer screen displays one question at a time, which is chosen from a very large pool of questions categorized by content and difficulty. The test starts out by posing questions of average difficulty. As you answer those questions, depending on whether you are correct or incorrect, the test poses future questions accordingly. So if you answer a question incorrectly, the next question will be easier, with a smaller point value; and conversely, if you answer the question correctly, the next question will be more difficult, with a larger point value. The larger number of difficult questions you answer, the higher score you receive.

What computer skills do I need to take a computer-based test?

Though previous computer experience is not a prerequisite, familiarity with the use of a personal computer does help. All CBTs have a detailed tutorial before you actually start the test, which tells you how to navigate through the test, how to answer, and what the various buttons on the screen indicate. There is no time limit for this tutorial, so you can make yourself comfortable before you start answering.

The GMAT requires you to type two essays for the Analytical Writing Assessment (AWA) Section, within a total of sixty minutes. This implies that some practice with the keyboard would certainly help. You do not have to be an expert typist - the AWA is not assessed on the number of words that you type - but some typing experience will surely stand you in good stead.

What are the conditions like at the Test Centre?

For taking the test, you will be assigned to an individual testing station (similar to a partitioned cubicle in an office). Other than your admit card and compulsory identification, you cannot carry anything with you - not even a pen. You are provided pencils, a sharpener, and ample sheets for rough work.

Do I have the option of canceling my score?

Yes, you have that option, but the decision to cancel must be made before you view your scores. Once you choose to view scores on the computer screen, you cannot cancel them - either at the test centre or later. Once you cancel the scores, you will not be able to view them.

The hallmarks of good leadership!!

2007-07-29T00:42:00.000-07:00

The Hallmarks of Good Leadership

The Hallmarks of Good Leadership

THERE are tomes written about how to lead and how to follow, and as with all things, paradoxically people end up reading these through one eye and blinking away the learning through the other. The end is that, to play on what dear old Polonius said to his son: Neither a follower, nor a leader be, for following often loses both its way and trends, and leading dulls the edge of brigandry. In the mad desire to clear my musty mind of (mis)conceptions about how to be a leader, I went into several ancient treatises on the subject and hit on Sun Tzu's `Art of War', Adolf Hitler's `Mein Kampf' and Genghis Khan's guttural growls (to say nothing of large lashings from Krishna's advice to Arjuna) to distil the essence of efficient leadership and proactive following.

Attribute #1: Leaders must have courage to take decisions, and followers must have the courage to do as they are told. While leadership has the problem of carrying the can at the end of the day, followers have the advantage of whining away to each other about the vicissitudes of their day's work. All the while keeping in mind Attribute #2 below

Attribute #2: Followers can crib all they want... to each other and not to everybody that comes their way, especially those that do not belong to the organisation. Doing so is disloyal and should be rooted out buckle and thong. Disagreement is not disloyalty. Disobeying is. A leader is disloyal to his followers if he does not back them up to his fullest ability. A person that has another view should be allowed to explain it. Indeed leaders and followers should listen. Neither should show any bias, even if the explanation is unusual and seems unsound. Attempts should be made to understand the divergent view

Attribute #3: Leaders should want to be leaders. There are some people who were excellent field men, but make useless managers. They think like field men and cannot marshal a group of field men from headquarters. Similarly, followers that want to be leaders out of turn, often turn out to be utter failures because they don't know how to follow properly and make followers happy to follow

Attribute #4: Leaders should be able to manage their own emotions and those of their followers. If a leader is devastated by a failed deadline or target, he is not inspiring enough to energise his followers to better performance the next time around. Followers should not allow their own disappointment to alloy the will of their teams and erode the quality of output. A leader should feel for the individuals in his care. By doing so, he ensures loyalty from his followers

Attribute #5: Leadership is not a cushy job. It requires high levels of energy and drive. If these are missing, no corporate house will succeed. A leader should lead by personal example. Only an energetic leader can enthuse a group of followers to be energetic. An energetic group of followers is a dynamic, productive and result-oriented group of followers

Attribute #6: Leadership is all about dynamism and the ability to choose the right path from the analysis of the facts before him. A leader cannot afford to be ambivalent. He must be decisive and bold enough to follow through on his decision. Lack of decision confuses and frustrates followers. Followers should follow with a will for their efforts to be successful

Attribute #7: Leadership involves anticipating the course of events with an educated instinct. Good followers learn to anticipate the wishes of their leader and support him in his decision. Anticipation of issues by leaders involves risk, the character of a leader should be able to accept and take that risk. Leader should anticipate the timing of their actions too. This they can often learn to do by learning from the failures they have had

Attribute #8: A leader should never be content to lose. Winning should be the goal every time since it inspires followers to perform well time and again. Understanding the adversary is crucial and should be one of the top priorities of a leader. A follower needs to appreciate his leader's assessment of the situation and the threats that face a strategy

Attribute #9: A leader has to show and be self-confident. He has to be because he needs the strength of his convictions to be successful. He has to display his self-confidence because he needs to convey the sensation to his followers. A successful leader is one that does well when things are going well and does better when things get rough. Persistence in the face of difficulty is essential

Attribute #10: A leader should praise a follower if he has done well, but in moderation. Over-praise is worse than no praise at all because it inflates the ego of the recipient and undermines his future efforts. It might also make the follower less of a follower. Similarly, leaders should be able to take the blame and not lay it at the doors of their followers. A good follower performs well because he has been well led. He performs badly because he has been badly led. Giving all the credit to a follower is as bad as blaming him for the failure of the team. In the final analysis, the leader is responsible for the success or failure of his group

Attribute #11: Leaders should have integrity so that both follower and other leaders can have faith in him. Indeed the best leader has integrity that is admired by his adversaries as well. A good follower should respect his leader's integrity and model his credibility on that of his leader

Attribute #12: Leaders should lead by encouraging loyalty, trust and dependability. Followers should be guided, trained and developed into sub-leaders. Punishment should not be harsh; it should be swift and just and should not take the form of humiliation. Punishment by exclusion is more powerful than punishment by humiliation. A follower that has been excluded will wish to return to favour. A humiliated follower will wish to distance himself from the group and may join the competitor. A good follower should be aware of personal wrongdoing. A wise follower will go to his leader before discovery and ask for remedial advice

They had it right you know, all the prehistoric corporate moguls (or Mongols), and the lessons we learn from them is as enduring today as it was several thousand years ago. Which goes to show, nothing has really changed since then, and as long as leaders and followers are human, they will continue to lead and be led in the same way they have always been. Call it whatever you want, but it will always be the same - only the frills and furbelows might look different. On the surface.

How to unlock an iphone safely and easily??

2007-07-29T00:41:00.000-07:00

How To Unlock an iPhone Safely and Easily?

I wonder when I will get my hands on this ever beauty. This is definitely one of the best cell gadgets ever made but due to its limitation to be used with AT&T only it has disappointed a large number of fans worldwide. But what if I tell you how to unlock an iPhone with just the push of one button? (No no! I am not a lunatic)

Software To Unlock/Hack/Activate an iPhone

This amazing software will enable you to hack/activate iPhone to be used with any service provider. It will keep you from limiting your iPhone to AT&T and signing the 2 year contract. I personally do not guarantee that this software will work or not but I have read in some forums and sources that it has proved to be lucky for some iPhone users so I think you must try this on your iPhone.

How To Use The Unlock iPhone Software

Oh well if you are thinking I am going to narrate a novel-long story of how to use this software you are so wrong. This is one of the simplest softwares I have ever seen. Just run the app and click on the ‘Unlock iPhone’ button and in a few seconds you will own an unlocked iPhone.

You can now use the iPod feature even without AT&AT (Wow! Imagine a wide screen 3.5-inch iPod)

Download iPhone Unlock Toolkit

Just download the iPhone Unlock Toolkit and have fun (Windows version)

8 most stylish iphone concept designs

2007-07-29T00:39:00.000-07:00

8 Most Stylish iPhone Concept Designs

This is what the real iPhone looks like but have you ever wondered what the iPhone could have been? The thing to say is that prior to the public release of the iPhone design, fans and concept designers all over the world made conceptual models of what the iPhone would look like and here is a bunch of those concept designs.

8 Most Stylish iPhone Concept Designs

Though there may be hundreds of conceptual iPhone models made before its official release but only some of them were sexy enough to get famous on the Internet. TechEBlog made a very nice collection of the 8 most stylish iPhone concept designs and I will like to share it with my readers on behalf of TechEBlog.

10 most expensive computer keyboards

2007-07-29T00:37:00.000-07:00

10 Most Expensive Computer Keyboards

There are thousands and thousands of new computer peripherals and accessories that are still undiscovered by most of us. The reason is that either they were not advertised well or they were just too expensive for anyone of us to buy.

10 Most Expensive Computer Keyboards
All of my readers know that I have this never ending love for new gadgets and computer accessories. The love continues and finally today I have something for you that you have probably never seen before. I have made a list of the most expensive computer keyboards ranging from a few hundred dollars to thousands of dollars. Thanks a lot to my friend Cold-Fire for helping me out in making this list.

1. Happy Hacking HP Keyboard Japan

This computer keyboard has a sweet price of US $4,400 and is coated many times using a special brush made from the hairs of virgins, and then powdered with gold dust.

2. Stealth Computer Keyboard

The cool looking Stealth Computer Keyboard has a price of US $2,200 and it comes enclosed in non-corrosive stainless steel with an optical isolated barrier.

3. TouchStream LP

This keyboard surely looks one piece of hardware innovation and it costs only for US $,1500.

4. Excutive Keyboard

This keyboard by Maltron was made with made with Perspex, Stainless-Steel and Polycarbonate key-tops to give relief to your fingers, wrists and arms while typing. It costs £550.

5. Dual Handed Ergonomic 3D

This is a unique 3D keyboard worth £375. The letter keys are angled inwards to match natural finger movements and the keys for the longer fingers are recessed. Getting a trackball on your crazy 3d keyboard will cost you an extra £65.

6. Professional II Datahand

The $675 beauty has been designed such that it can be dynamically adjusted to fit the size and shape of a person’s hands.

7. Keyless Ergonomic Keyboard

The orbiTouch Keyless ergonomic Keyboard creates a keystroke when you slide the two domes into one of their eight respective positions. It has a price of US $399.

8. Comfort Keyboad

As the name says this is the ultimate comfort keyboard. The Comfort Keyboard is separated into three sections, which can be adjusted easily and locked into place. It costs $349.

9. Wireless Entertainment Desktop 8000

This is one keyboard made by Microsoft and with a reasonable price of $249. The media keyboard is also known as the Ultimate keyboard. An aluminum finish makes this keyboard quite attractive.

10. Optimus Keyboard

This is so far a virtual or concept keyboard which has been just rendered in 3D and has no physical existence. The expected price for this keyboard is said to be very high and it is so far assumed to be a very expensive keyboard.

Tips to overcome fear of publicspeaking

2007-07-29T00:36:00.002-07:00

Tips to overcome fear of Public Speaking

Do your knees feel like Gumby's when you have to get up and speak in front of a group? Do you feel like the next words out of your mouth are going to be the dumbest words ever uttered by a human?

Over 41% of people have some fear or anxiety dealing with speaking in front of groups. People who have this fear can experience all kinds of symptoms: Sweaty palms, accelerated heart rate, memory loss and even difficulty in breathing.

Everyone, even experienced speakers, has some anxiety when speaking in front of a group of people. This is perfectly normal. The best way to deal with this anxiety is to first acknowledge that this fear is perfectly normal and you are not alone. To reduce your fear, you need to make sure you properly and thoroughly prepare yourself before you speak. Proper preparation and rehearsal can help to reduce this fear by about 75%. Proper breathing techniques can further reduce this fear by another 15%. Your mental state accounts for the remaining 10%.

Few suggestions you should use to overcome your speaking anxiety. The first and most important of all is preparation. I like to think of it as the 9 P's: Prior Proper Preparation Prevents Poor Performance of the Person Putting on the Presentation.

10 steps you can take to reduce your speech anxiety.

1. Know the room - become familiar with the place in which you will speak. Arrive early and walk around the room including the speaking area. Walk from where you will be seated to the place where you will be speaking.

2. Know the Audience - If possible, greet some of the audience as they arrive and chat with them. It is easier to speak to a group of friends than to a group of strangers.

3. Know Your Material - If you are not familiar with your material or are uncomfortable with it, your nervousness will increase. Practice your speech or presentation and revise it until you can present it with ease.

4. Learn How to Relax - You can ease tension by doing exercises. Sit comfortable with your back straight. Breathe in slowly, hold your breath for 4 to 5 seconds, then slowly exhale. To relax your facial muscles, open your mouth and eyes wide, then close them tightly.

5. Visualize Yourself Speaking - Imagine yourself walking confidently to the lectern as the audience applauds. Imagine yourself speaking, your voice loud, clear and assured. When you visualize yourself as successful, you will be successful.

6. Realize People Want You To Succeed - All audiences want speakers to be interesting, stimulating, informative and entertaining. They want you to succeed - not fail.

7. Don't apologize For Being Nervous - Most of the time your nervousness does not show at all. If you don't say anything about it, nobody will notice. If you mention your nervousness or apologize for any problems you think you have with your speech, you'll only be calling attention to it. Had you remained silent, your listeners may not have noticed at all.

8. Concentrate on Your Message - not the audience. Your nervous feelings will dissipate if you focus your attention away from your anxieties and concentrate on your message and your audience, not yourself.

9. Turn Nervousness into Positive Energy - the same nervous energy that causes stage fright can be an asset to you. Harness it, and transform it into vitality and enthusiasm.

10. Gain Experience - Experience builds confidence, which is the key to effective speaking. Most beginning speakers find their anxieties decrease after each speech they give.

About author

Lenny Laskowski is an international professional speaker and President of LJL Seminars (tm), in Newington, CT. He can be reached at (860) 666-4855 or by email at President@LJLSeminars.com.

Thoughts on computer science

2007-07-29T00:36:00.001-07:00

Thoughts on computer science.
Is it a science?

Note you can use some this for your SOP. However quote the original author's name :Dr. Robert Bridson of University of British Columbia.

The debate rages on: is CS a science, or engineering, or math, or even art? Funnily enough, often you don't hear from those arguing how they define science or engineering or math or art before they start listing arguments one way or another. This is not a silly exercise: I think it would be difficult to exactly define these disciplines, since the boundaries certainly are fuzzy. Is a physicist designing and building a new apparatus to test someone else's theory doing engineering? Is an engineer theorizing and testing by experiment how natural materials behave under loading doing science? One of the gold standards of traditional mathematical results is that they be elegant, beautiful, pleasing---is that art?

I think the truth is simply computer science is more or less all of these things. Attempts to nail it down will ultimately fail.

CS is science---if the defining feature of science is the scientific method of testing theory with experiment. Outside of some theory, most algorithm development goes along the lines of speculating how problems need to be solved according to some intuitive model of the domain, building an algorithm to fit that "theory", and then running experiments to demonstrate the (in)efficacy of the algorithm. HCI usability studies, performance tests, and the studies of many other branches are clearly scientific. Even debugging, beyond the searching-for-typos level, is arguably science: you start with a theory of how a program is (mal)functioning, then design experiments to tease out if your theory is correct allowing you to find and attack the bug.

CS is engineering---if the defining feature of engineering is building useful artifacts in a rigourously informed way. Building new hardware, large software systems, or studying how to do these things lies unquestionably in this domain. Even a lot of heuristic algorithm development is arguably engineering.

CS is math---if the defining feature of math is the logical synthesis of unambiguously true statements. Depending on the field within CS you look at, there may be more or less theorems and proofs in the papers, but even where they are not apparent, there is also the universality that computer science is steadily joining math and statistics in. In virtually every branch of science, the essential tools of analysis are math, statistics, and increasingly computation (or at least information technology).

I find it harder to argue that CS is art, though certainly aesthetics play an important role (but then again they play a role in virtually every endeavour). I would say the defining feature of art is the _expression of quintessentially human attributes to communicate those to other people. There are artists who indeed write software or build hardware as a means of _expression, but I would guess many would debate if that truly is computer science. I'm undecided---or rather as with most things in life it's not black and white, and trying to force a shade of grey one way or the other is unproductive.

The Story Behind Reading Comprehension

2007-07-29T00:35:00.000-07:00

Author: color_sparklers@yahoo.co.in (You can contact him for any other information)

As you read the passage, there may be some lines which you may not understand when you read just once. It is because you don’t have experience in reading articles on various issues that you could not understand the sentence in your first read. Don’t panic. Do not keep worrying if that line is important to understand the rest of the passage or if a question might be there on that line. You must stick to some rules and you must follow them. You cannot be in a dilemma when in an exam. Continue to the next line, finish reading the passage. While reading the passage, the essence of the passage must keep building up in your mind. You should not be like, “ok, I’ve finished reading the passage. Now, lemme think what is the passage all about”

Prepare a set of rules for yourself for every section of every exam and follow them during the exam. During an exam, your target is to “solve as many questions as possible correctly and immediately mark the answer for every question you have solved”. So, your brain must be working to achieve that target and should not think of anything else. If you waste time by thinking whether or not to “read a sentence again”, “redo a problem”, “verify an answer”, it means that you are not taking your mind to the next problem confidently and convincingly because of which you will not be able to answer the next question with full concentration or full potential. So, mental preparation for and exam and application of strategies during the exam are very important if you want to perform the best you can in an exam.

So, as far as the reading comprehension section goes, choose the passage that you can best answer first by looking at the questions, the length of the passage and by glancing at few of the lines of the passage to know what the topic of the passage is.

Most importantly, while reading, focus on how much you are understanding, how much is being taken by the mind constantly as you move your eyes through the words and lines rather than focusing on the speed.

What actually happens with most people who grapple with RCs is - they are tensed because of that basic fact that they do not have any experience in reading articles or books of any kind. But they do not realize the fact that if this tension prevails in their minds and hearts during the exam, they cannot even answer the questions which they can. So, I once again stress that you can ward off your stress and tension during an exam by preparing and following a strategy for every section of any exam. The strategy must be prepared according to the knowledge you have, the time you have for that section, the skills you have, the confidence you have.

Now, coming to the practical point of view, I’ll tell you two accounts where people fail to read an RC effectively. First account – A person because of the tension he has and with an intention to perform better in RC than he can, starts of well reading the first few lines or may be the first para well. But there is tension in him. With tension, a person cannot perform better in the long run. Since he has read few lines or a para & understood it well, he will tell his mind & heart – “yes, I’ve got some essence, now cool down” while simultaneously reading the other lines of the passage superficially without getting their meaning. Now, as he comes to the 4 th paragraph, he realizes that he has not understood the 2 nd and 3 rd paras well. Now again the tension creeps in and the same story.

Second account – For a person who has an anathema towards RCs, when the time comes he has to face an RC in an exam, he first thinks if there is anything else left to be answered – a time waster. Then he thinks, “abbaaa…, should I grapple with these RCs now?” He looks at the time and begrudgingly starts reading the passage. But he himself does not know that he has started reading the passage because while reading the passage, there are so many other things going in his mind. Since he started reading the passage begrudgingly, he reads the first two paragraphs superficially only. What actually goes in his mind is “ayyo, what is this topic? This is totally abstract. How many questions are given?” He looks at the number of questions again. Then thinks, “I think time is running out”. He looks at others. Then thinks, “should I leave this passage go for another passage? I haven’t practiced RC at all. How will I do now?” He has actually read two paragraphs by the time he thinks all these things and has not understood anything because he did not make any attempt to understand. He ofcourse realizes that thing after reading two paragraphs, and then suddenly starts reading the next couple of lines with a speed that no one else could read with.

Many of you, I know, might have experienced both the accounts that I’ve stated here. When you can figure out the problem, when you know the cause for the problem, can’t you figure out the solution for that?

So, I repeat "focus on how much you are understanding, how much is being taken by the mind constantly as you move your eyes through the words and lines rather than focusing on the speed". Its not enough if you just understand some lines somewhere in the passage. You must concentrate to understand everything you read. Do not lose you concentration and do not be tensed.

Now, the problems, the causes, and even the solution is there in this page. If you still are not able to know what the solution and what the strategy must be in dealing with RCs, then go on to next page.

How to make a youtube DOWNLOADER

2007-07-29T00:34:00.002-07:00

Most of you would have noticed a new button in the sidebar known as the YouTube Downloader. Well it is a real working YouTube video downloader that I have created for my personal use and also so that other users can benefit from it and can download and save their favorite YouTube videos on their desktops.

Some of the responses I got were very encouraging after implementing this totally innovative feature in wordpress but some had to say that it is going to use a lot of server resources and may mess up my wordpress. Here I am going to explain whats so easy and different about this YouTube Downloader and how easy it was for me to implement it.

YouTube Video Downloader Source Code

First of all my huge thanks to ThirdNipple for the free php source code which was made available on their site to help someone make an easy YouTube video downloader. I can manipulate and alter PHP codes but it is a true fact that I can’t code in PHP from scratch so I had to use the ready-made free code created by ThirdNipple. The code is indeed very light and does not use your server resources at all.

Why Have a YouTube Video Downloader?

Fetch some huge traffic to your Blog/Website
Use it for your personal use to download videos
Make your users happy by giving them a free service
Make some Money for yourself

I know I could have bought a separate domain to launch this service but why should I? This service shall give my blog free publicity, traffic and readers then why should I bother registering new domains for new services when one domain can do the whole job. Also registering, updating and managing different domains is a big job. Let your blog do that job for you.

How to setup the YouTube Video Downloader?

If you want to Implement this on your blog/website simply follow the steps instructed:

Make a php file e.g youtube-download.php in your blog/website directory and add this code to it.
Now make a page/post in your blog/website and add this iframe code to its code section.
Save your page and Publish it and the show is on.

Easy now wasn’t that? Offer your users some free goodies and see the magic of traffic come along.

Caution: Wordpress does not generate code-friendly quotes. So when you copy the ifram code re-write the quotes.

The trick to master word power

2007-07-29T00:34:00.001-07:00

If you want to ace GRE/ GMAT, mastering Word Power is half the battle won.

But merely cramming 4,000 words at the rate of 50 words a day is not the answer. There are chances you will forget what you have learnt.

Instead, here is a simple technique to help you strengthen your vocabulary; this technique involves your mind and not just your memory.

i. Experiment with synonyms

After you see the meaning of a word, look up its usage in the sentence that is usually present in the dictionary. Note down this sentence. Prepare a new sentence after understanding the meaning of the word.

Try to create sentences with the new words you are learning every day. You should write at least five different sentences with every new word over a period of time.

When you do this, your mind is forced to find the suitable usage of the word. This mental exercise ensures the meaning of the word is ingrained in your memory.

ii. Prepare sentences with antonyms

It does not end here; you need to make sure the meaning of the word is permanently stored in your mind. In order to do so, you will need the help of a thesaurus. Use it to find out the antonym (opposite) of the word.

After you find out the antonym, use it in a sentence in the same way you did with original word. If possible, create at least five different sentences with a word over a period of time.

iii. Compare synonyms and antonyms

Use both the synonym (a word having the same or nearly the same meaning as another word) and the antonym to construct sentences using the same context or situation. This procedure enables you to see a word from both sides.

If you can follow this strategy, it would definitely solve your problem of learning new words without forgetting their meaning.

iv. Let's take an example

Take the word punctilious. Its synonyms are: careful, conscientious, exact, finicky, formal, fussy, meticulous, particular, proper and strict.

Make sentences with some of them as given below.

a) We really appreciated our punctilious host's warm welcome.
b) Our hosts were very careful to offer us a very warm welcome.

c) The hosts were meticulous in ensuring their guests' comfort.

Now, take the antonyms of punctilious. They are easygoing, informal and lax. Let's make sentences with these:

a) The hosts' easygoing attitude left the guests with a cold feeling.
b) The hosts were very informal in receiving their guests.

c) The hosts' lax attitude made the guests feel uncomfortable.

v. Important: Use the same context

You should always use the same background to write sentences using a new word, its synonyms and antonyms. If you use different circumstances, events or situations to get acquainted with the meaning and the usage of a word, there is a strong possibility that you may get confused.

It is the context that will always remind you of how the word is used, and will ensure you don't forget the meaning easily.

vi. Patience and will power

Even if you have to learn only 700 new words, the exercise is time-consuming and requires effort on your part.

Interestingly, if you ask novelists, writers, journalists and even professors of English the meanings of such words, they might fumble; they may even have heard of these words for the first time. So you need not feel terrified or disheartened about the mammoth task ahead of you.

Again, it would be nothing short of being naive on your part to think you can master Word Power like magic. However, patience and a strong will power will see you through

6 soft skils u need for success

2007-07-29T00:27:00.000-07:00

Reputed Software Company in India is all geared up for a client

visit.

The clients have indicated that, after inspecting the progress of the
project they have outsourced, they would like to meet the team

members working on it.

Why? To select one team member for a stint onsite -- something almost

every software engineer aspires for.

Ravi has been one of the most active members in the project and has
done a wonderful job. He is technically brilliant, but has some

concerns:

Will he able to communicate his performance to the client in an
impressive manner so that he is chosen?
Why do his team mates not prefer to come to him for solutions and go
to less capable people instead?
His project manager doesn't seem to be very warm towards him either,
although he does drop in those occasional mails appreciating his
work.
Here is a typical scenario in an IT company; or for that matter, any
organisation where interpersonal communication is involved. Or, like
in Ravi's case, where an employee suffers from a lack of

interpersonal skills.

Are technical/ job-related skills enough?

Technical and job-related skills are a must, but they are NOT

sufficient when it comes to progressing up the ladder.

With the traditional paternalistic style of leadership becoming
passé, professional managers expect their teams to be proactive and

communicate openly.

"Soft skills are very important in business. It is essential to be
technically sound, but one should also have the ability to convey the
idea to the masses in the simplest possible manner," says Mayurkumar

Gadewar, an ERP consultant with Pricewaterhouse Coopers.

With the boom in outsourcing taking root across industries, many
professionals and subject matter experts directly deal with their

clients on a regular basis.

Their approachability and people skills are what ultimately sustain

the contract their employers have bagged.

"Planning is necessary but execution is also equally important. And
it takes soft skills to execute any idea because it involves dealing

with people directly," says Gadewar.

6 soft skills for every hard-nosed professional

Behavioral training experts say there are several soft skills are

required in these circumstances. Some of them include:

i. Interpersonal skills

ii. Team spirit

iii. Social grace

iv. Business etiquette

v. Negotiation skills

vi. Behavioral traits such as attitude, motivation and time

management

Do you have these? If your answer is yes, good for you.

But if your answer is no, then you know it is time to approach either

a training organisation or a training consultant.

Will formal training enhance your soft skills?

There is a lot of argument in the industry as to whether it is
possible to enhance soft skills in a few hours of training,
especially when one considers the fact that a person has lived with
those traits all his life. To this, the answer is harsh but real -- a
professional who wants to do well in his/ her career does not really

have a choice.

In the initial years of your career, your technical abilities are
important to get good assignments. However, when it comes to growing
in an organisation, it is your personality that matters, more so in
large organizations where several people with similar technical

expertise will compete for a promotion.

Training on soft skills becomes all the more relevant in a country
like India where the education system does not delve into personality

development.

"Soft skills training are essential because we do not have it in our
academic curricula. Therefore, corporate houses have to take up the
task of grooming employees who are the link between the company and
the external world, so that they are able to present themselves
better, " says Sumeet Mehta, an equity research analyst with Fortis

Securities Ltd.

Be your own trainer!

While organizations are definitely investing in augmenting their
staff's people skills, here are some inputs for professionals and

students who would like to initiate the process themselves:

i. Be a part of team activities

It could be either as a part of your church choir, or an NGO, or your

local youth circle.

Observe your own behavior in the group and how you relate to others.

ii. Ask family members or close friends to write down your best and

worst traits.

Ideally, have at least four to five people do this for you.

Evaluate the common traits all of them have mentioned. Thus, you can

be aware of your strengths and work improving your weaknesses.

iii. How well do you manage your time?

Think.

Can you do more in life? Or is your day too crammed with activities?

Effective time management is very essential in the corporate world.

iv. Introspect on how you react to feedback.

In organizations, people skills mostly come into the picture when
there is feedback given -- be it for an idea, an executed project or

a presentation.

You are judged by the way you respond to feedback.

Do you get defensive?

Do you insist you were right?

Do you meekly accept criticism?

Remember, people tend to be judged and stereotyped according to their

responses. You will, too.

v. How good are you at critiquing?

While responding to feedback is one side of the coin, giving feedback

is the other side.

Are you aggressive? Pessimistic? Do you believe in constructive

criticism? Or prefer to be the yes-man?

vi. Live consciously

Any organisation is manned by people, therefore soft skills are all

about how you deal with people and present yourself.

Though it may be easier said than done, soft skills can be enhanced
simply by being aware of oneself and living consciously.

12 tips for creating better presentations

2007-07-29T00:24:00.000-07:00

You have a presentation to create. It's important. But, formatting diagrams can take forever and the text on your slides seems to have a mind of its own. Then, there's the sad fact that everybody's PowerPoint presentations look the same.
Sound about right? If so, I've got good news for you! Creating professional, unique presentations can be much easier than you might think.
This article will help you find the right tools to get exactly the presentation you want. We'll look at three components of creating effective presentations, and provide timesaving tips to help send your presentation off in style.

On This Page

Clearly Communicate Your Information

Grab the Viewer's Attention

Stay in Control of Your Presentations

Clearly Communicate Your Information
Want slides that clearly communicate your most important points? You might be surprised at how little work it takes to go from basic to brilliant! PowerPoint provides a host of tools for keeping your slides consistent, precise, and professional.

Take a look at two versions of a basic bulleted text slide below. The text in both slides is identical. Which would you prefer to present?

It took just a couple of shapes and a bit of editing in the Slide Master to go from the slide on the left to the slide on the right.
Here are 4 ways to let Microsoft Office PowerPoint 2003 help you clearly communicate your information:
1. Set up and use AutoLayouts. In PowerPoint 2003, you can select from over two dozen available layouts with a single click. Just open the Slide Layout task pane to view and access layouts for text and a variety of content. To open this task pane, on the Format menu click Slide Layout.
You can also customize the positioning and appearance of all layouts at once, using the Slide Master. On the Slide Master, make a variety of formatting changes just once to affect all slides in your presentation.
To access the Slide Master, on the View menu select Master and then click Slide Master. Once in Slide Master view, you can reformat the font, bullets, and even the line spacing of text. (These options are all available in the Format menu.) Or, alter the size and positioning of AutoLayout areas—the areas of the master that control slide layouts for the active presentation. Learn more about the Slide Master.
Get more tips for using masters in the Stay in Control of Your Presentations section of this article.
2. Turn off (or manage) AutoCorrect layout options. PowerPoint 2003 provides several automatic formatting options to help your slides conform to the provided layouts. They can be big timesavers, but they can also be frustrating if you're not using them intentionally. If you don't want your bulleted text to shrink automatically in order to fit content, or the positioning of pasted objects to change automatically, you can easily turn off these features.

To turn off any AutoFormat options, on the Tools menu click AutoCorrect Options. Then, select the AutoFormat As You Type tab of that dialog box.

The bottom three options on the AutoFormat As You Type tab of the AutoCorrect dialog box control automatic formatting behavior for layouts.
3. Start by outlining your presentation in Word. Take time to outline your presentation before creating slides. Doing so can save time and help you give a more clear and effective presentation.

Try setting up your outline in Word, using paragraph styles Heading 1 through Heading 9. When you use those styles for your outline, you can create PowerPoint slides in just a click. Learn to create PowerPoint slides from a Word outline.

4. Consider differences for print vs. screen presentations. Presentations designed to be viewed on screen don't always work well when you print them. Dark backgrounds that look good on slides, for example, rarely print well. Similarly, footer content that you need in print is likely to be distracting on-screen. Fortunately, PowerPoint makes it easy to switch between print and screen presentation designs. Here are two features that can help:

• PowerPoint provides color schemes that apply to different slide elements (such as text, lines, and object fills). You can format slides for print using one color scheme, then just click to apply a different scheme for on-screen use. All slide elements formatted with scheme colors will automatically swap to take on the new scheme. Learn more about using and customizing color schemes.

• Showing, hiding, and customizing header and footer content in PowerPoint can be a snap. Learn how to create and manage headers and footers.

Top of page
Grab the Viewer's Attention
The Microsoft Office Clip Art gallery offers a huge range of images. These can be great for many uses, but they might not be the most sophisticated way to emphasize your important idea.

Creating slides that get the viewer's attention is not about which pictures to include. It's about using the space on your slides effectively. Don't crowd your slides, and only include elements that contribute to the points you want to make. When you use graphics on a slide, choose images that serve a purpose (such as a chart or diagram that displays a direct benefit of your idea). Compare the two marketing slides below, for example.

The simple column chart in the slide on the right replaces two paragraphs of text, and makes a much stronger impression. Coordinating the chart colors with the slide design was automatic.
Check out 4 ways to help grab and keep your viewer's attention.
1. Use sound recordings when sending a presentation electronically. A clean slide that emphasizes key points is more effective than a slide that contains every word you intend to say. But, what do you do if you're sending your presentation electronically? Consider recording narration to accompany your slides.
• To record narration for a presentation, on the Slide Show menu click Record Narration.
• To record sound for a single slide, on the Insert menu select Movies and Sounds and then click Record Sounds.

Learn how to record narration and sounds.

2. Use Notes and Handouts to help you stay on track or to create quick and easy leave-behinds for your viewers. Use the Notes pane that appears below the slide in Normal view to write notes to yourself for your presentation, or to create notes that you can print for your viewers. You can also format and print handouts that contain up to nine slides per page.

Learn to create Notes pages and Handouts.

3. Create charts and diagrams that emphasize your key points. To chart data in PowerPoint, start by clicking the Insert Chart icon on any Content slide layout, as show here:

The Insert Chart icon is circled in red.

• When you click the Insert Chart icon, you'll get a default chart that's a snap to customize and a data worksheet that's easy to edit. Visit my blog to learn about charting data in PowerPoint.

• The Insert Diagram or Organization Chart tool (available from the Drawing toolbar) is a nice way to create quick and easy flowcharts. However, I find that using AutoShapes to create any type of diagram or flowchart can provide much more flexibility without much more work. See the Stay in Control of Your Presentations section of this article below for information on the available tools for creating flawless presentation graphics.

4. Use animation and slide transitions consistently and sparingly. Having text and graphics appear on-screen just when you need them can be a nice touch. However, using too much animation can distract from your presentation's content.

• For effects that emphasize without overwhelming, limit animation to key points and use consistent animation choices throughout the presentation. Open the Custom Animation task pane (available on the Slide Show menu) to apply and manage animation. Learn to use Custom Animation.

• Subtle and consistent slide transitions can also provide a professional touch without being distracting. Use the Slide Transition task pane (available from the Slide Show menu) to format and apply slide transitions. Learn about using slide transitions and timings.

Top of page
Stay in Control of Your Presentations

Custom colors, layouts, and graphics can do a lot for your presentation. But a misaligned flowchart, or a presentation that crashes on your client's computer, isn't likely to make the impression you want. For example, take a look at the two organization chart images below. Which would you prefer to call your own?

Nudging and fussing to create the organization chart on the left took about an hour, and it's far from perfect. Using available PowerPoint tools for duplicating and alignment, the chart on the right took just 10 minutes to create.
Here are 4 ways to keep your presentations both great-looking and easy-to-manage.
1. Keep file size manageable. A common cause of stress with PowerPoint presentations is that the file size becomes too large to edit or to run presentation smoothly. Fortunately, this problem is easy to avoid by using smaller picture file types, compressing pictures, and using native PowerPoint features whenever possible (such as tables, charts, and AutoShapes) instead of embedding and importing objects.

Visit my blog to learn more about options for reducing picture file size.

2. Use the available tools for creating perfect diagrams. One of the nicest things about PowerPoint is that getting something perfect is easier than getting it close.
• Instead of nudging objects until your eyes get tired, use the Align Or Distribute tools. They can help you perfectly align and evenly distribute objects in a click. To access these tools, select Align or Distribute from the Draw menu, which is available on the Drawing toolbar.
• You can also use Guides to align and space objects. Guides can help you measure distance and keep positioning of elements consistent across multiple slides. To see your Guides, on the View Menu select Grid and Guides. Then, in the Grid and Guides dialog box, select Display drawing guides on screen.

Learn more about alignment and distribution options for PowerPoint objects.

• Zooming in on an object in PowerPoint can greatly increase the accuracy of what you see. To do this without trial and error, just select the object before changing the Zoom setting on the Standard toolbar.

Visit my blog for more tips on creating beautiful, flawless diagrams.

3. Know exactly what the recipient of your presentation will see. If you're sending a presentation by e-mail, try saving the presentation as a Slide Show so that it automatically opens for the recipient in slide show view. To do this, on the File menu click Save As. In the Save As dialog box, select PowerPoint Show (.pps) from the Save As Type dropdown list, as you see here:

This screenshot shows how to use save your presentation as a slide show.

If you're sending a presentation on CD, the Package for CD feature in PowerPoint 2003 is a great time and stress-saver. This feature will set up your presentation (including linked files) on a CD so that the slide show will run correctly for any recipient. It even adds a PowerPoint viewer so that the recipient's computer doesn't need PowerPoint to run the show. Learn more about Package for CD.

4. Use Masters for consistency and to save time. In addition to customizing elements of slide layouts (as discussed earlier in this article), you can use the masters to save time and keep slides consistent by adding graphics and formatting just once for all slides.
• Place graphics (such as your logo) on the Slide Master, so that they automatically appear on all slides. Note that, when graphics appear on the master, you can still hide them for just certain slides. To hide graphics for an active or selected slide, on the Format menu click Background. Then, in the Background dialog box, select Omit background graphics from master.
• You can add a Title Master to use different formatting and graphics on title slides from other slides in your presentation. To do this, switch to Slide Master View. Then, select New Title Master from the Insert menu.
• While a great new feature in PowerPoint enables you to create multiple slide masters for a single presentation, use this feature carefully. Keep in mind that the purpose of a master is to help keep your slides consistent.

13 charectrestics of SUCCESFULL people

2007-07-29T00:23:00.000-07:00

THE 13 CHARACTERISTICS OF SUCCESSFUL PEOPLE -

By Jeffrey J. Mayer -

SucceedingInBusiness.com

I've spent many years studying successful people and have identified the
skills, talents, and characteristics that enable them to succeed. As you
look at and study these skills, talents, and characteristics, you'll realize

that you possess many of them yourself.

Some of these skills and talents are more dominant than others and will play
a greater part in your being, or becoming, a success in the business of

life. These are the things you do well.

The things you do easily and effortlessly. These are your strengths. When
you find you need a skill or talent you don't have, just go out and look for

a person or group of people with the skills, talents, and training you need.

Skills and talents that complement your own. These people will become your
teammates, colleagues, co-workers, professional advisors, and friends. With
these combined skills and talents organizations grow, prosper, and become

successful.

These are the five things you'll find every successful person has in common :-

1. They have a dream.

2. They have a plan.

3. They have specific knowledge or training.

4. They're willing to work hard.

5. They don't take no for an answer.

Remember: Success begins with a state of mind. You must believe you'll be

successful in order to become a success.

The following is a list of the skills, talents, and characteristics you'll

find in successful people: -

1. Successful People Have a Dream.

They have a well-defined purpose. They have a definite goal. They know what
they want. They aren't easily influenced by the thoughts and opinions of

others.

They have willpower. They have ideas. Their strong desire brings strong

results. They go out and do things that others say can't be done.

Remember: It only takes one sound idea to achieve success.

Remember: People who excel in life are those who produce results, not
excuses. Anybody can come up with excuses and explanations for why he hasn't

made it. Those who want to succeed badly enough don't make excuses.

2. Successful People Have Ambition.

They want to accomplish something. They have enthusiasm, commitment, and
pride. They have self-discipline. They're willing to work hard and to go the
extra mile. They have a burning desire to succeed. They're willing to do

whatever it takes to get the job done.

Remember: With hard work come results. The joy in life comes with working

for and achieving something.

3. Successful People Are Strongly Motivated Toward Achievement.

They take great satisfaction in accomplishing a task.

4. Successful People Are Focused.

They concentrate on their main goals and objectives. They don't get
sidetracked. They don't procrastinate. They work on the projects that are
important, and don't allow those projects to sit until the last minute.

They're productive, not just busy.

5. Successful People Learn How to Get Things Done.

They use their skills, talents, energies, and knowledge to the fullest
extent possible. They do the things that need to be done, not just the

things they like to do.

They are willing to work hard and to commit themselves to getting the job
done.

Remember: Happiness is found in doing and accomplishing, not in owning and
possessing. Many years ago I was asked: "Jeff, do you like pleasing habits
or pleasing results?" As I pondered that probing question, and squirmed in
my chair like a worm at the end of a hook, I felt as if I had painted myself
into a corner. A few moments later I answered: "I like pleasing results."
From that moment on my life changed. I began to do the things that were

difficult, because they enabled me to achieve my goals.

6. Successful People Take Responsibility for Their Actions.

They don't make excuses. They don't blame others. They don't whine and

complain.

7. Successful People Look for Solutions to Problems.

They're opportunity minded. When they see opportunities they take advantage

of them.

8. Successful People Make Decisions.

They think about the issues and relevant facts, give them adequate
deliberation and consideration, and make a decision. Decisions aren't put

off or delayed, they're made now!

Success Tip: Spend more time thinking and planning before you make your

decision, and you'll make better decisions.

Success Tip: When you don't get the expected results from the decision
you've made, change your course of action. Decisions should never be carved

in stone.

9. Successful People Have the Courage to Admit They've Made a Mistake.

When you make a mistake, admit it, fix it, and move on. Don't waste a lot of
time, energy, money, and/or other resources trying to defend a mistake or a

bad decision.

Remember: When people are wrong, they may admit it to themselves. If they
are handled gently and tactfully, they may admit it to others and even take
pride in their frankness and broad-mindedness. But people become very
defensive and angry when others try to cram their mistakes down their
throats. If you want to learn how to overcome the fear of failure, overcome
the procrastination habit, and become more successful by writing and

reviewing your goals, you should

10. Successful People Are Self-Reliant.

They have the skills, talents, and training that are needed in order to be

successful. Your thoughts, comments & opinions are appreciated.

11. Successful People Have Specific Knowledge, Training, and/or Skills and Talents.

They know the things they need to know to be successful. And when they need
information, knowledge, or skills and talents that they don't possess, they

find someone who does possess them.

12. Successful People Work with and Cooperate with Other People.

They have positive, outgoing personalities. They surround themselves with

people who offer them help, support, and encouragement. They are leaders.

13. Successful People Are Enthusiastic.

They're excited by what they're doing, and that excitement is contagious.
They draw people to them because these people want to work with them, do
business with them, and be with them.

Interview TIPS!!!

2007-07-29T00:22:00.001-07:00

1. Be on time!

Practise getting to the venue to see how long it will take. Public transport may be useless, the traffic may have been heavy, but however reasonable it won't affect the fact that your chances are reduced if you are late. Always remember - You never get a second chance to make a first impression.

Aim to be early - you can always find a nearby cafe/shop/pub to wait in. And if worst comes to worst and you are going to be late, then definitely ring in and let them know.

2. Be Prepared!

Look at the employers' website and learn something about the company before you attend your interview. Feed them the opportunity to talk proudly about something positive you have found.

3. Write down and practice possible questions!

Writing them down and practicing them with someone will make it easier to remember when you get to the interview. Use the third person when talking about the job. Avoid sounding as though you assume the job is yours.

It is fine to ask about the package on offer and accommodation - living in and living out are particularly relevant. Don't forget to find out if the company will guarantee a resort or chalet - many will only allocate you a country. You could also try a fewer more testing questions such as how they differentiate themselves from their competitors or what they think the toughest/hardest part of the job is.

4. What are your weaknesses?

Don't be Spud from Trainspotting! 'None…ah well, ah'm a bit of a perfectionist actually!' Try to find an area of your experience/skill that is currently lacking. An interviewer will appreciate your candour - as long as whatever you disclose can be easily remedied.

5. You never get a second chance to make a first impression!

SMILE! Dress professionally in simple business attire. Just because you are going to be working in a ski resort does not mean you should wear Oakleys and a fleece to your interview. And don't forget that firm handshake and to maintain eye contact - without glaring!

6. Be honest!

There really is no point lying about your background and/or skills. If you get caught, or even manage to get out to resort and then get found out, you can be sure you won't be around for long! Job interviews are about matching needs - if there isn't a good match, then chances are that the job won't work out.

7. Check your CV for possible gaps!

Make sure you know how you are going to explain time gaps on your CV.

8. Talk about specific achievements!

Interviewers like to know how you felt about about a particular success. Some will ask for specific examples of things you've done that you're particularly proud of; how you solved problems; how you learned - and improved - from difficult situations.

9. Don't talk too much!

Spud again - Communication is a two-way thing so give them a chance

10. Prepare a sample menu plan!

If you are applying for a catering job then take along a sample menu plan. By this we mean a starter/main/dessert combination over six days, ideally with a vegetarian option. Think about teh balance of nutrients and how the colours will look on the plate. Our recipe section has a number of favourites.

11. Take a spare photo & CV with you!

Your interviewer won't be expecting it so you will impress them. It also helps them remember you after the interview.

12. Be enthusiastic and positive!
Don't criticize previous employers, particularly within the industry.

Focus on positive achievements and views.

12. Be on time!

And finally, Don't give up!
The fact is that you will not be offered every job however perfect you think you may be for it. Usually it's because the interviewer was completely blind to the talent that stood before them. However, just on the off chance that it was not, feedback from interviews where you have been turned down can be invaluable for improving future results. Ask politely if they can give you any feedback for the future - there's a job out there for you somewhere.

Quotes on SUCCESS

2007-07-29T00:21:00.000-07:00

I long to accomplish a great and noble task, but it is my chief duty to accomplish small tasks as if they were great and noble.
~ Helen Keller

~~~~~~~~~~

The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.
~ Roosevelt

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You may be disappointed if you fail, but you are doomed if you don't try.
~ Beverly Sills

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Successful and unsuccessful people do not vary greatly in their abilities. They vary in their desires to reach their potential.
~ John Maxwell

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Unless you try to do something beyond what you have already mastered, you will never grow.
~ Ronald E. Osborn

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If you aren't making any mistakes, it's a sure sign you're playing it too safe.
~ John Maxwell

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If you have the will to win, you have achieved half your success; if you don't, you have achieved half your failure.
-David Ambrose

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Success is not measured by what a man accomplishes, but by the opposition he has encountered and the courage with which he has maintained the struggle against overwhelming odds.
~ Charles Lindbergh, Aviation pioneer

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Unless you are willing to drench yourself in your work beyond the capacity of the average man, you are just not cut out for positions at the top.
~ J.C. Penny

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To bring one's self to a frame of mind and to the proper energy to accomplish things that require plain hard work continuously is the one big battle that everyone has. When this battle is won for all time, then everything is easy.
~ Thomas A. Buckner

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Don't measure yourself by what you have accomplished, but by what you should have accomplished with your ability.
~ John Wooden

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You must do the very thing you think you cannot do.
~ Eleanor Roosevelt

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Nothing ever comes to one that is worth having except as a result of hard work.
~ Booker T. Washington

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A competitive world has two possibilities for you: you can lose or, if you want to win, you can change.
~ Lester C. Thurow

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True success is obeying God.
~ John Maxwell

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There are three ways to get something done: Do it yourself, employ someone or forbid your children to do it.
~ Monta Crane

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Why not go out on a limb? Isn't that where the fruit is?
~ Frank Scully

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Success is to be measured not so much by the position that one has reached in life as by the obstacles which he has overcome while trying to succeed.
~ Booker T. Washington

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All the beautiful sentiments in the world weigh less than a single lovely action.
~ James Russell Lowell

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The secret of success is consistency of purpose.
~ Benjamin Disraeli

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Doing little things with a strong desire to please God makes them really great.
~ St. Francis De Sales

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I cannot give you a formula for success, but I can give you the formula for failure - which is: try to please everybody.
~ Mr. Herbert Bayard Swope

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Listing your personal milestones is like storing a pocketful of sunshine for a rainy day.

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Sometimes our best is simply not enough.... We have to do what is required.
~ Sir Winston Churchill
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Avoid these 6common interview mistakes

2007-07-29T00:20:00.002-07:00

Hi Friends

I have got this nice article. I would like to share with all of you so that it can be helpful to all, This is written by a gentleman from US. Its worth reading it.

Avoid these six common IT interview mistakes

Tip #1: Don't discuss pay too early

As the manager of a software store for 10 years, I can honestly say that questions about pay in the first interview from anyone other than a temporary applicant always bothered me a little. Temp jobs aside, if you are not really out there just for the money, asking this question right out of the gate is going to make any other questions you ask sound conniving and insincere. Unless the subject comes up, don't wade into the issue of the pay in the first interview. You can talk about it after you impress the employer enough for a second interview.

Tip #2: Talk tech to techies only

Feel free to discuss what you know, but remember: If you are talking to a nontechnical manager or human resources representative, you are not going to impress them with talk about life in the trenches. My previous supervisor was totally unimpressed with anything to do with technology. A sure way to put the man to sleep was to begin any story that had to do with computers.

When I interviewed for a previous position, the department manager actually had a technically savvy person participate in the interview to ask and respond to questions she would not understand. When I saw this tactic being used, I knew it was not a time to try to impress with a lot of techno babble.

Answer questions about your work history briefly and keep the tech comments to a minimum until you know the history of the company and the people involved in the hiring process. If you have questions about the technology in use at the site, keep your questions specific and relevant to the position for which you are applying.

Tip #3: Keep your philosophy to yourself

If you hate Bill Gates, Windows XP, and the whole Office Suite, keep it to yourself. Ranting about your tech philosophy can ruin your chances at the position.

I once interviewed a young man for a retail sales position in a software store. When I asked about his opinion of the then-new Windows 98, the applicant ranted about "the revolution of UNIX" and loosening the grip of Microsoft on the PC market. I am not exaggerating; the man sounded like he was ready to sign on to a paramilitary group. I almost didn't have the heart to tell him my company was a Value Added Reseller for Microsoft.

Chances are, you will work with many people who need your help with one of the Microsoft products, so you don't want to blast the tools you will likely be using and supporting. If you are asked about how you feel about a product, be honest, but don't preach. The interviewer probably just wants to see how you respond to such questions.

Tip #4: Don't climb the advancement ladder in the interview

If you are joining the ranks of a new company, the last thing the interviewer wants to hear is, "How fast can I get out of this job?" Do not ask about opportunities for advancement until the second or third interview. If you are joining a company just to advance into another position, silence is golden. Keep it to yourself unless the interviewer asks or unless it is somehow already known that you'll be advancing quickly. Remember that what you say now can come back to haunt you later. You don't want to brag to someone who might be under your wing after a promotion.

Further, you never know what may happen if you actually get the job. Learn to accept and adapt and, above all, be happy you have a job. Due to downsizing, a former coworker of mine did not move into the network administration position she wanted and was expecting to get. The bitterness fostered by her broken expectations eventually caused her to resign. In the tight job market of the time—similar to the one now—and with her lack of certified qualifications, she ended up seeking work at a local restaurant.

Tip # 5: Avoid the dreaded electronic interruption

Cellular phone and pager etiquette might seem a trivial thing to those that are hooked up, but you can kiss any job opportunity goodbye if you interrupt an interview to take a telephone call, especially if the human resources representative has a low tolerance for personal digital devices. Only if you are exchanging information by invitation should you reveal the fact that you carry a PDA. If you wear it on a belt loop or somewhere that is exposed, lose it, along with any other electrical device hooks and loops, and store them in pocket, purse, or briefcase. If you can't spare the time away from the rest of the world to do an interview, why are you applying for the job?

I have conducted training classes with people who, when asked to turn off their phones and pagers during class, place their devices in silent mode. When giving a lecture to a class or holding a discussion, watching a person being silently buzzed is terribly distracting and also aggravating.

If you think getting rid of electronic communications devices isn't important, just ask any human resources rep who has had a person answer a cellular phone during a job interview. Then ask if the person got the job.

Tip six: Remember to say thank you

Beyond thanking your interviewers for their time as you leave, it's vital that you follow up in written form. If the competition for a position is tight, a follow-up thank you note can mean a lot. If the manager is slow to hire, the arrival of a thank-you note can serve as a reminder about the candidate who's awaiting the manager's next move.

Just after you've completed the interview, take note of anything specific you discussed and make a point of referencing it in your thank you letter. Even a nice greeting card is better than nothing.

It may seem like a small detail, but the experts will tell you that this tried-and-true tactic really makes an impact. A coworker of mine, who successfully worked as a job coach, used to keep a stack of generic notes in her desk. When a participant in her program applied for a job somewhere, she would give the person one of these notes to have them drop in the mail on the way home.

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God bless you all.

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