How many ways can a class president, a class secretary, and a class treasurer be chosen from a group of 8 candidates?
A) 24
B) 1680
C) 336
D) 21

Question

Quizplus · Accepted Answer

The number of ways to choose a class president, a class secretary, and a class treasurer from a group of 8 candidates is calculated using permutations since the order matters. The formula for permutations is nPr = n! / (n-r)!, where n is the total number of items, and r is the number of items to choose. Here, n=8 and r=3, so the calculation is 8P3 = 8! / (8-3)! = 8! / 5! = 8*7*6 = 336.

How Many Ways Can a Class President, a Class Secretary