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Heavy Weight |
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Two weighings are required to identify the heavier thing among the four
identical ones. Two weighings are required for the nine things as well.
But how on it in the latter case?.. |
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Fish's Weight |
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This classic puzzle gem easy shows that sometimes it can be not very easy
to understand how much a simple half of a whole is. |
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Red, White, and Blue Balls |
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It's known there is one heavier ball in each of the three pairs. Now the
object is using a balance scale in just two weighings to determine the
light and the heavy balls in each pair... |
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Last Updated:
February 15, 2008 |
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