Question

Evaluate C(5, 2).
a. 10
b. 20
c. 60

Answer 1

10 is the answer

Explanation:

C(5,2) = 5! / 2! (5-2)!

C(5,2) = 5! / 2!3!

C(5,2) = 120/12

C(5,2) = 10

Answer 2

(5 * 4)/(2 * 1) = 20/2 = (( 10 or A ))