Saturday
March 28, 2015

Homework Help: MATH

Posted by Jill on Wednesday, December 23, 2009 at 9:42pm.

There are 10 similar coins, but 2 of them are fake. The fake ones are lighter than the real ones, but both have the same weight. You are give a balance scale, and you should determine which coins are fake. At least how many weighings do you need to find the fake coins?

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