Question

Kieran’s wallet contains 7 bills: three $5 bills, two $10 bills, one $20 bill, and one $100 bill. If Kieran pulls out two bills at random, what is the probability that he selects exactly two $5 bills?

Use complete sentences to explain the probability. In your final answer, include all of your calculations.

Answer 1

3/7

`3 / 7`

Answer 2

The answer is 1/7.

Explanation:

So, basically, 7 bills, and there is a 3/7 chance to collect 1. Another 1/3 to collect another one, which is actually 1/7.