samkprescott samkprescott

08-06-2017
Mathematics

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An average library contains at least 50 and at most 250 books. How many library owners must be polled to be certain that at least two owners have the same number of books in their libraries?

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08-06-2017

math - Steve, Wednesday, May 7, 2014 at 4:35pm
there are 201 numbers from 50 to 250.

So, clearly, if 202 people are polled, at least two of them must have the same number.

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