Question

Lisa solved 40 math fact problems in 2 ½ minutes and 80 math fact problems in 5 minutes. What’s her unit rate?

Answer 1

16 problems a minute

Explanation:

Unit rate = "the 1 value"

The "1", in this case, would be 1 minute.

So, we need to find the number of questions she is solving every minute.

To do this, either divide 40 by 2.5 (2 and 1/2), or 80 by 5 Dividing either will give you the number 16, and this is your answer.