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