SOLUTION: The speed of a passenger train is 12 mph faster than the speed of a freight train. The passenger train travels 270 miles in the same time it takes the freight train to travel 210

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Question 126645: The speed of a passenger train is 12 mph faster than the speed of a freight train. The passenger train travels 270 miles in the same time it takes the freight train to travel 210 miles. Find the speed of each train.
Passenger train _________ mph
Freight train __________ mph
Answer by LarsJongste(2) About Me  (Show Source):
You can put this solution on YOUR website!
hi there,
this is what i figured out .. i think i pretty self explainitory , hope it helps
passenger train270 mph
freight train210 mph
difference60 mph

to build up this difference they had to ride for 60/12 = 5 hours and therefore
the passenger train's speed = 270 / 5 = 54 mph
the freight train's speed = 210 / 5 = 42 mph

and the difference in speed = 54 - 42 > 12 mph