Question

Solve the problem.

A teacher is going to assign each student a 3-digit code using the digits 0 through 4. How many codes are possible if no repetitions are allowed?
A.) 60
B.) 125
C.) 24
D.) 64

Answer 1

24 codes are possible

Explanation:

0 through 4 means we are to select from 0,1, 2 , and 4

That’s a total of 4

The first number has 4 choices, the second 3, the 3rd two and the last 1

The product of the choices are;

4 * 3 * 2 * 1 = 24 codes