Evaluate the expression.

Question

P(10, 5) over
P(9, 5)

Answer 1

P(10, 5) = 10! / (10-5)! = 10! / 5! = 30240
P(9, 5) = 9! / (9-5)! = 9! / 4! = 15120

Therefore, P(10, 5) / P(9, 5) = 30240 / 15120 = 2