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December 22, 2014

December 22, 2014

Posted by **tyler** on Thursday, December 16, 2010 at 12:04pm.

- algebra -
**Reiny**, Thursday, December 16, 2010 at 2:28pmPretend you have two extra people to fill the empty seats,

Then the number of ways to arrange them would be 8!

But the two really were not there, and the two empty seats are like having "2 like things"

so final number of arrangements = 8!/2! = 20160

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