<PRE><B>Question 810632</B>
In 5 hours how far can a car go and return if the average speed going is 48 mph and the average speed returning is 52 mph.
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Going DATA:
time = x hrs ; rate = 48 mph ; distance = 48x miles
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Returning DATA:
time = 5-x hrs ; rate = 52 mph ; distance = 52(5-x) = 260-52x miles
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Equation:
distance going = distance returning
48x = 260-52x
100x = 260
x = 2.6 hrs
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Total distance = 48x+(260-52x) = 260-4x = 260-4*2.6 = 249.6 miles 
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Cheers,
Stan H.
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