Question

Evaluate 7!/5!2!
choices
1
21
42

Answer 1

The correct answer is B. 21

Answer 2

`(7!)/(5!2!) = (7 * 6 * 5 * 4 * 3 * 2 * 1)/(5 * 4 * 3 * 2 * 1 * 2 * 1) = (7 * 6)/(2 * 1) = (42)/(2) = 21`

The answer is B.