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Two sets of Coins (Posted on 2005-10-07) Difficulty: 2 of 5
You have two sets of five coins. Each set has four real 30g coins and one 31g fake coin. It is easy to find the fake coins using a balance scale a total of four times, two weighings for each set.

Can you find a strategy which uses only three weighings?

See The Solution Submitted by Brian Smith    
Rating: 3.5000 (2 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Dum solutionDeep,Dark&Dummy2006-01-10 06:33:09
Solutiontwo sets of coinsDeep,Dark&Dummy2006-01-09 06:16:23
re: not sure i get your logic for scenario two...Charlie2005-10-21 14:01:06
not sure i get your logic for scenario two...Mad2005-10-21 00:23:43
SolutionsolutionCharlie2005-10-07 21:48:39
Hints/Tipsre: 3 simple stepsCharlie2005-10-07 18:57:24
Solution3 simple stepsAdy TZIDON2005-10-07 16:15:03
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