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

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) (Show Source): You can put this solution on YOUR website!
moving apart at 60+55=115
575/115=5 hrs
Answer by TimothyLamb(4379) (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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