1998 CEMC Gauss (Grade 7) Problems/Problem 10

Problem

At the waterpark, Bonnie and Wendy decided to race each other down a waterslide. Wendy won by 0.25 seconds. If Bonnie’s time was exactly 7.80 seconds, how long did it take for Wendy to go down the slide?

Solution

Wendy took seconds, so the answer is

-edited by coolmath34