Friday
August 29, 2014

Homework Help: Combinatorics

Posted by Bob on Tuesday, March 19, 2013 at 7:17am.

Bob is at an amusement park with 10 different rides. He only has time to go on 3 rides, before he needs to head back for his curfew. If he only wants to go on each ride a maximum of one time, how many different ways are there to go on 3 rides?

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