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)

Comments: ( Back to comment list | You must be logged in to post comments.)

re: 2 weighings, re(4): done in 3 weighings.... I think =P

| Comment 20 of 33 |

(In reply to 2 weighings, re(4): done in 3 weighings.... I think =P by Hugo)

yea, I guess that would work if you ALREADY KNEW WHICH WEIGHTS WEIGHED HOW MUCH! =D

Posted by Vina on 2004-07-28 03:16:45

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