<PRE><B>Question 253626</B>
A communter train travels a distance of 4 miles in exactly 3 minutes. What is the average speed of the train in miles per hour?
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[4 mi/3 min][60 min/1 hr] = (4*60)/(3*1) (mi/hr)
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= (4*20) (mi/hr)
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= 120 mph
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Cheers,
Stan H.</PRE>