Question

In the first two hours of the trip, Julissa drove 120 miles. In the nest hour, she traveled only 48 miles. What was Julissa's average speed in miles per hour (mph) for the 3 hour drive?

Answer 1

The first two hours was 60 miles an hour and after that it was only 48 miles an hour. She drove 168 miles altogether in 3 hours. The final answer is 56 MPH on average for all 3 hours. 168/3= 56 MPH

Answer 2

average speed=(total distance traveled)/(total time of travel)

average speed=(120+48)/3

average speed=56 mph