perplexus.info :: Weights and Scales : Sorting Coins

Sorting Coins (Posted on 2004-01-18)

You have 12 coins. They are completely identical except six of them weigh 24g and the other six weigh 25g. You have only a balance scale to sort them out. What is the minimum number of weighings which guarantees all the coins to be sorted?

See The Solution Submitted by Brian Smith

Rating: 3.3333 (3 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
answer	K Sengupta	2007-12-21 12:21:19
Good problem but Old	jon&lilet	2004-04-16 04:27:41
re: will this work	Brian Wainscott	2004-01-22 15:40:30
will this work	MIKE INCE	2004-01-21 19:50:35
re(2): Simple approach	Brian Wainscott	2004-01-20 13:08:14
There is a solution in . . . .	Brian Smith	2004-01-20 12:15:45
re: Simple approach	John	2004-01-19 17:52:38
Simple approach	Brian Wainscott	2004-01-19 13:52:15
re: An alternative method	Penny	2004-01-18 23:22:54
An alternative method	Penny	2004-01-18 22:37:38
worst case & information theoretic	Charlie	2004-01-18 12:34:11

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