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| Too Many Balls, Too Little Weighings - Wednesday, 21 May 2008 @ 12:57 by jarrydIQ Question:
You have 13 balls.
One of them weighs different from all the rest. It could be heaver, or it could be lighter. No one knows.
You have a balancing scale (like a see-saw, either both sides equal, or one up and the other down) that can only be used 3 times.
Find the odd ball.
*REMEMBER: You don't know if the odd ball is heavier or lighter. Labels: none newest | permalink (124) | |
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