# 27 Coins Balance Puzzle

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Twenty-six coins weigh the same and one counterfeit coin weighs less than the others. Determine the counterfeit coin using a balancing scale with the least number of tests. Do you think you can find the counterfeit coin with only three tests?

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Contributed by: Min Ho Bae (February 2015)

Open content licensed under CC BY-NC-SA

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"27 Coins Balance Puzzle"

http://demonstrations.wolfram.com/27CoinsBalancePuzzle/

Wolfram Demonstrations Project

Published: February 12 2015