Question

Carter has to choose a combination for his locker. The combination must have 3 numbers from 1 to 13. The second number has to be a number from 0 to 8. Find the total number of combinations Carter could choose.

Answer 1

Hello!

By finding the probability, we will see that Carter will have selected one out of the amount of possible locker combinations.

First, we have 1/13 twice for the 1st and 3rd numbers, and for the second 1/9 counting zero. If we multiply 1/13, 1/13, and 1/9, we get 1/1521.

This means that there were 1521 total locker combinations Carter could choose from.

Hope this helps!