<PRE><B>Question 685085</B>
A boy leaves on a bicycle trip at the rate of 8 mph. One hour later the father, realizing that his son forgot his camping gear, sets out by car. How fast must the father drive to overtake the boy in 15 minutes?
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Boy DATA:
rate = 8 mph ; time = 5/4 hrs. ; distance = 8(5/4) = 10 miles
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Father DATA:
time = 1/4 hrs ; distance = 10 miles ; rate = d/t = 10/(1/4) = 40 mph
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Cheers,
Stan H.</PRE>