Question

Clare is paid $90 for 5 hours of work. At this rate, how long will it take her to save $360?

Answer 1

20 hours

Explanation:

We can use a ratio to solve

90dollars 360 dollars

--------------- = -----------

5 hours x hours

Using cross products

90x = 5* 360

Divide each side by 90

90x/90 = 5 * 360/90

x = 20

20 hours