Question

If ^n-4C4 = 15, find n​

Answer 1

this is ur answer..........

Answer 2

Step-by-step explanation:

(n-4)!/4!(n-8)! = 15

(n-4)(n-5)(n-6)(n-7) = 15*24

(n-4)(n-5)(n-6)(n-7) = 360

n = 10