SOLUTION: Distance and time: a bicyclist rides uphill at 10 miles per hour for 5 miles and then rides downhill at 20 miles per hour for 5 miles. What is the bicyclist's average speed?
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Question 485070: Distance and time: a bicyclist rides uphill at 10 miles per hour for 5 miles and then rides downhill at 20 miles per hour for 5 miles. What is the bicyclist's average speed?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Avg = 2*10*20/(10 + 20) = 400/30
= 40/3 mi/hr
13.333... mi/hr
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