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A passenger train traveled 180 miles in the same amount of time it took a freight train to travel 120 miles. The rate of the freight train was 15 miles per hour slower than the rate of the passenger train. Find the rate of the passenger train.

 Aug 6, 2020
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S = Speed of passenger train:

 

180 / S  = 120 /(S - 15), solve for S

 

S = 45 mph

 Aug 6, 2020

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