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Lesson: Challenging Problem Solving - 22

Rates: Average Rates And Combined Rates, Continued

[Page 22 of 37]

Now solve the following rate problem on your own.

Select the correct answer and then click Continue.

A cyclist rides from Foster to Johnston at an average speed of 20 miles per hour and returns immediately along the same route at an average speed of 15 miles per hour. Of the following, which is the closest to the average speed, in miles per hour, for the round trip?
16.5
17
17.5
18
18.5

 

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