Posted by tyler on Thursday, December 16, 2010 at 12:04pm.
six people are going to be seated in a row of 8 chairs. how many different ways may they be seated?

algebra  Reiny, Thursday, December 16, 2010 at 2:28pm
Pretend 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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