perplexus.info :: Weights and Scales : Four Weights

Four Weights (Posted on 2004-07-25)

You have 4 weights weighing 2,3,5 and 7 pounds. The problem is none of them are marked. What is the fewest number of weighings you need using a balance scale figure out which weights are which?

See The Solution Submitted by Brian Smith

Rating: 3.5000 (8 votes)

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re: fewest numbers = 4

| Comment 2 of 33 |

(In reply to fewest numbers = 4 by peychinhwee)

"weigh all 4 weights>> a+b+c+d=w"

How does this work with a balance scale ?

Posted by Penny on 2004-07-25 11:15:05

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