<PRE><B>Question 202676</B>
Tom took a trip of 1,020 miles. He traveled by train at 55mph and the same number of hours by plane at 285mph. How many hours did the trip take? 
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Train DATA:
distance = x miles ; rate = 55 mph ; time = x/55 hrs
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Plane DATA:
distance = 1020-x miles ; rate = 285 mph ; time = (1020-x)/285 hrs
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Equation:
train time = plane time
x/55 = (1020-x)/285
Cross-multiply to get:
285x = 55(1020-x)
285x = 55*1020 - 55x
340x = 55*1020
x = 165 miles
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train time = 165/55 = 3 hrs
plane time = (1020-165)/285 = 3 hrs
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Total time = 6 hrs.
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Cheers,
Stan H.</PRE>