Today, I was asked a very beautiful Logic Question by a very brilliant person. I took a minute to think about it and solve it. But then I was soo amazed at my own intelligence and aptitude that I am posting about the problem and my solution. (Sorry for bragging but I wonder how a brain works if not by divine intellect.) Here is the question: Question: You have got 90 pool balls which look completely identical in shape, size and weight. Only one ball in the complete set has a lighter mass. You also have a weighing machine. Tell me a way where you can find the anomalous ball in least number of iterations (steps). Well, I have never come across such a puzzle till now, and was a bit dazed in such a scenario. Then I trusted myself and started to think, and the solution was brilliant: Doing it linearly weighing each ball takes 89 iterations. My solution: Divide the entire set of 90 balls into 45 each, Weigh them on the weighing machine. You get the set containing the ball with li
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