Question

Fill tha value of nif nP3=5nP2

Answer 1

Answer:

7

Step-by-step explanation:

n! /(n-3)! =5(n!) /(n-2)!

(n-2)! /(n-3)! =5

(n-2) (n-3)! /(n-3)! =5

n-2=5

n=7