SOLUTION: How do you solve this permutation question?: n_P_4

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Question 404201: How do you solve this permutation question?: n_P_4
Answer by sudhanshu_kmr(1152) About Me  (Show Source):
You can put this solution on YOUR website!

nPr = n! / (n-r)!
where n! = n * (n-1) *..... 2*1
example : 4! = 24
5! = 120
nP4 = n!/ (n-4)!