A bicyclist rides for 4 h at a speed of 12 mph and then returns at a s

Yolanda Jorge

Yolanda Jorge

Answered question

2021-11-16

A bicyclist rides for 4 h at a speed of 12 mph and then returns at a speed of 16 mph. Find the cyclist's average speed for the trip. (Enter your answer as a fraction. Reduce all fractions completely.)

Answer & Explanation

pseudoenergy34

pseudoenergy34

Beginner2021-11-17Added 22 answers

Step 1
Given that a bicyclist rides for 4 h at a speed of 12 mph so distance covers by a bicyclist are
distance=speed×time
distance=12×4
distance=48miles ...........(1)
Step 2
Now the time is taken in returning by the speed of 16 mph
time=distancespeed
time=4816
time=3 hours ..............(2)
Step 3
So, the cyclist's average speed for the trip
average speed=total distance coverstotal time taken
average speed=48+484+3
average speed=967h

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