Question

Find the Computing Permutation.P(7,5)

 

Answer 1

P(7, 5)  =  7P5

            =  (7!) / (7-5)!

            =  (7!) / (2!)

            =  (7 X 6 X 5 X 4 X 3 X 2 X  1) / (2 X 1)

            =  7 X 6 X 5 X 4 X 3

            =  2520

Answer :

P(7, 5)  =  2520.