Question

At her most recent race, Sue finished in 272 minutes. That is 15% less time than the previous race. What was her time in the previous race?

Answer 1

320 minutes was her time on the previous race

Explanation:

Let the time spent on the previous race be x minutes.

Given that at her most recent race, Sue finished in 272 minutes which is 15% less time than the previous race then

x - 15% * x = 272

x - 0.15x = 272

0.85x = 272

x = 272/0.85

x = 320 minutes