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May 25, 2015

Homework Help: Discrete math

Posted by Genie_math on Wednesday, October 3, 2012 at 9:01pm.

There are eighteen guard posts. How many ways can 25 not indistinguishable (That is, they are distinguishable.)guards be distributed to the guard posts, so that no post is empty?

Try - (25 choose 18) ??

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