Question

You have the number 1-25 written on slips of paper. If you choose one slip at random, what is the probability that you will not select a number which is divisible by 3?

Answer 1

8/25

Explanation:

Steps:

1. First you count how many number are divisible by three. The numbers are 3, 6, 9, 12, 15, 18, 21, and 24, which is a total count of 8 numbers.

2. Then you count the numbers of slips of paper, which you know is 25.

3. Finally, put the number of numbers that are divisible by three or the total slips of paper to find your answer.