Posted by Ri on Monday, June 8, 2009 at 4:30pm.
A,B,C, and D are sitting along one side of a table. In how many different orders could the four friends be sitting?

math  Damon, Monday, June 8, 2009 at 4:48pm
a b c d
a b d c
a c b d
a c d b
a d b c
a d c b
Well, six ways for each of the four starting letters
6*4 = 24

math  Damon, Monday, June 8, 2009 at 4:49pm
By the way
4! = 4*3*2*1 = 24
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