SOLUTION: Two trains leave a station at the same time. one train is traveling west at 60 kilometers per hour and the other train is traveling east at 55 kilometer per hour. in how many hours

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Question 829277: Two trains leave a station at the same time. one train is traveling west at 60 kilometers per hour and the other train is traveling east at 55 kilometer per hour. in how many hours will they be 575 kilometers apart?
Found 2 solutions by rfer, TimothyLamb:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
moving apart at 60+55=115
575/115=5 hrs

Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
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relative speed of two trains:
60 + 55 = 115 kph
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s = d/t
t = d/s
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t = 575/115
t = 5 hours
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