SOLUTION: a family drove to a resort at 30 mph and later returned over the same road at 50 mph. find the distance to the resort if the total driving time was 8 hours.
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Question 924187: a family drove to a resort at 30 mph and later returned over the same road at 50 mph. find the distance to the resort if the total driving time was 8 hours. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! a family drove to a resort at 30 mph and later returned over the same road at 50 mph. find the distance to the resort if the total driving time was 8 hours.
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Avg speed for the round trip is 2*30*50/(30+50)
= 3000/80
= 37.5 mi/hr
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d = r*t = 37.5*8 = 300 miles RT
--> 150 miles each way
