Many of us have pondered puzzles involving a set of n coins and a balance scale. Here we take a slightly different tack: a set of coins and a balance scale that can tell us which of two sets of coins is heavier or that they are of equal weight.
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Home → Magazine Archive → November 2012 (Vol. 55, No. 11) → Puzzled: Weighed in the Balance → Abstract
Puzzled: Weighed in the Balance
By Peter Winkler
Communications of the ACM,
Vol. 55 No. 11, Page 120
10.1145/2366316.2366340
![[article image]](https://cacm.acm.org/system/assets/0000/9559/102012_CACMpg120_Weighed-in-the-Balance.large.jpg?1476779400&1350664849 "a balanced balance scale")
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