SOLUTION: Passengers versus freight. A freight train takes 1 1/4 hours to get to the city; a passenger train averaging 40mph faster takes only 45 minutes to cover the same distance. What is
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Question 259867: Passengers versus freight. A freight train takes 1 1/4 hours to get to the city; a passenger train averaging 40mph faster takes only 45 minutes to cover the same distance. What is the average speed of the passenger train?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
rt=d
rt=rt
f*5/4=(f+40)*3/4
multiply by 4
5f=3f+120
2f=120
f=60 mph
p=100 mph
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