Question

How many combinations of a president, vice-president, secretary, and treasurer can be chosen from a group of 12 students?

a. 11,880
b. 95,040
c. 665,280
d. 3,991,680

Answer 1

Answer: 11,880

Explanation:

nPr = n!/(n-r)!

12P4 = 12!/(12 - 4)!

12P4 = 12!/8!

9 * 10 * 11 * 12

(In case anyone else gotten confused like I did at first)

Answer 2

the answer is a 11,880