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Four Coins and Three Weighings (Posted on 2007-03-08) Difficulty: 3 of 5
You have four coins to sort with a standard balance scale. Their weights are 20g, 21g, 22g and 23g. Prove that there is no strategy which can guarantee sorting the coins with only three weighings.

See The Solution Submitted by Brian Smith    
Rating: 4.3333 (3 votes)

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Hints/Tips re: proof ..... not applicable | Comment 8 of 10 |
(In reply to proof by Charlie)

Charlie

You have ignored the values of the coins

Please see my post /

Ady


  Posted by Ady TZIDON on 2007-03-10 04:06:26
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