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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)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Some Thoughtsre: All things being equal **Look for the flip sideAdy TZIDON2007-03-10 17:25:04
Hints/TipsAll things being equalGamer2007-03-10 14:55:51
Hints/Tipsre: proof ..... not applicableAdy TZIDON2007-03-10 04:06:26
how to edit my postAdy TZIDON2007-03-10 02:50:11
Solutionit is possible!!!!Ady TZIDON2007-03-10 02:47:36
re(2): Information theory wayGamer2007-03-09 11:43:25
re: Information theory wayCharlie2007-03-09 09:50:07
SolutionInformation theory wayFederico Kereki2007-03-08 16:09:28
SolutionproofCharlie2007-03-08 15:46:14
Some ThoughtsAlmost a solution...Old Original Oskar!2007-03-08 15:17:12
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