There are 30 people in a class learning about permutations. One after another, 8 people gradually slip out the back door. In how many ways can this exodus occur?

Would I use this to solve the problem?

P(30,8)=30!/22!

Thanks for any help.

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- Dec 10th 2009, 01:24 PMdiscretecPermutations and Combinations
There are 30 people in a class learning about permutations. One after another, 8 people gradually slip out the back door. In how many ways can this exodus occur?

Would I use this to solve the problem?

P(30,8)=30!/22!

Thanks for any help. - Dec 10th 2009, 06:12 PMemakarovQuote:

Would I use this to solve the problem?

P(30,8)=30!/22!

- Dec 11th 2009, 03:16 AMShanks
Perhaps, you are one of those 8 guys who slip out the back door during the combinatics class.

Joke! - Dec 12th 2009, 09:07 AMdiscretec
(Rofl)