Question

A hat contains 25 folded slips of paper. Each slip of paper has a number from 1 to 25 on it. The slips are shuffled, and a single slip of paper is randomly drawn.

What is the probability that the slip of paper shows a number that is a multiple of 5 or a multiple of 6?

Answer 1

9/25 or

36%

Explanation:

Multiples of 5 are:

5, 10, 15, 20, 25

Multiples of 6 are:

6, 12, 18, 24

There are 9 slips that are multiples of 5 or 6. This number goes on top. There are 25 total slips all together; this number goes on the bottom. The probability is 9/25.

If the teacher/text/program asks you for the probability as a percent, change the 9/25 to 36/100. This is 36%.

Alternatively, you could divide 9÷25 (this is what 9/25 also means) You will get 0.36

Convert the decimal 0.36 to a percent by multiplying by 100.

0.36×100 is 36

The probability is 9/25 or 36%