Heavy Weight

 

by Martin Gardner

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There is a set of nine identical weights and simple scales (without any measures) - just as shown in the illustration. It is known that one weight is a little bit heavier than the eight others.

Using only the scales can you identify the heavier weight in two weighings only?

To play the interactive version of the puzzle, please, visit it
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Posted: December 11, 2007
Puzzle
Solution
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