SOLUTION: how far can a man drive out into the country at the average rate of 60 mph and return over the same road at the average rate of 45 mph if he travels a total of 7 hours?
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Question 523419: how far can a man drive out into the country at the average rate of 60 mph and return over the same road at the average rate of 45 mph if he travels a total of 7 hours? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! The avg speed of the round-trip is
2*60*45/(60+45) = 5400/105 = 360/7 mi/hr
RT distance = (360/7)*7 = 360 miles
One-way = 180 miles
