perplexus.info :: Weights and Scales : I Only Need Two

I Only Need Two (Posted on 2005-11-09)

A set of 17 coins contains five 35g coins and twelve 30g coins. Using a balance scale at most four times find at least two of the 35g coins.

See The Solution Submitted by Brian Smith

Rating: 3.5000 (4 votes)

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re: One weigh or another (2)

| Comment 3 of 5 |

(In reply to One weigh or another by Leming)

Another problem in 2B: "The heavy side has 2 heavy coins". It may have all three.

Posted by Old Original Oskar! on 2005-11-09 14:12:02

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