SOLUTION: A farmer drove to the market on Friday at an average speed of 60 miles per hour. He returned home on Sunday along the same route and averaged 40 miles per hour. If the farmer spent
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Question 607129: A farmer drove to the market on Friday at an average speed of 60 miles per hour. He returned home on Sunday along the same route and averaged 40 miles per hour. If the farmer spent a total of two hours driving to and from the the market, how many miles did the farmer drive to the market on Friday? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A farmer drove to the market on Friday at an average speed of 60 miles per hour. He returned home on Sunday along the same route and averaged 40 miles per hour. If the farmer spent a total of two hours driving to and from the the market, how many miles did the farmer drive to the market on Friday?
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Avg speed of a round trip is
2*r1*r2/(r1 + r2)
Avg = 2*40*60/100 = 48 mi/hr
2hrs * 48 mi/hr = 96 miles RT
= 48 miles each way
