Question

A car traveled 360 miles in 4 hours. If its speed were to be 15 mph slower, how long would it take to travel the same distance? __ hours __minutes

Answer 1

Explanation:

The average speed of the car is 360 / 4 = 90 mph. 90 - 15 = 75. 360 / 75 = 4.8 so the answer is 4 hours, 48 min.