Question

Asked Jan 22, 2019

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A drawer contains 17 black socks, 17 white socks, 17 blue socks, and 17 brown socks. If the light is off and Matt reaches into the drawer to get his socks, what is the minimum number of socks he must pull out in order to be sure that he has a matching pair?

Let’s say that he has picked four socks. If he have already found a pair after two or three or four draws, he is done. But it is possible that after two or three or four draws he does not find a match.

So let’s assume that after four draws he has one black, one white , one blue and one brown sock. Now if he draws the fifth one, he must have pic...

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