Tom D. answered • 11/06/14

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Tom,

You're right: 220 books. Isn't 200 divisible by 4 and by 5? Why does it have to be 220? To answer my own question, It's not equal to 200 books but greater than 200. So 220 is the smallest number that can be divisible by 4 and 5 that is greater than 200.

Tom D