mygeekside » Mind Challenges
Dec 14

I present you a interesting mind challenge:

You have 12 coins.  Eleven are made of gold; one is counterfeit.  You don’t know which one because they all look alike.  Also, you don’t know if the fake coin is heavier or lighter than a real gold coin.  All eleven gold coins weigh the same. 

You have a classic balance scale: two pans suspended from a pole with the center point balanced on a post.  The scale can compare the weight of an object or objects in the left pan (L) with an object or objects in the right pan (R ). The scale will tell you if pan L is equal, heavier or lighter than pan R.

You can use the scale only three times for weight measurements with the coins.  Can you determine not only which coin is fake, but if it is heavier or lighter than the real gold coins?  Or, is the task impossible with only three measurements?

 

 

The answer, if is possible or not, will be published soon…

Meanwhile you can try to resolve the challenge … And raise your findings in the comments …

Posted in Mind Challenges | 9 Comments »
Dec 14

I will present you every so often some mind challenges that I found in some books, internet web sites or others, for you get entertainment and break your brain trying to solve them, hehehe,. They are interesting games that require you extra effort.

It no needed to be a Astrophysicist or to have a high IQ to solve them. Anyway, to solve them you have to think, or sometimes think in a different way to get another perspective and in this way to get soluction.

Some ot them will be easy; others so difficult. So let’s begin…

Posted in Mind Challenges | 4 Comments »