SOLUTION: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 mph and train B is traveling at 50 mph. Train A passes a station at 7:10 am. If

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Question 366504: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 mph and train B is traveling at 50 mph. Train A passes a station at 7:10 am. If train B passes the same station at 7:22am, at what time will train B catch up to train A?
Answer by amoresroy(361) About Me  (Show Source):
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Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 mph and train B is traveling at 50 mph. Train A passes a station at 7:10 am. If train B passes the same station at 7:22am, at what time will train B catch up to train A?
Let x = the number of hours it takes train B to catch up with train A
after it passes the same station at 7:22am
50x = 40(.2) + 40x
10x = 8
x = .8 hour = 48 mins
So train B will catch up with train A by 8:10am (7:22 + 48 mins.)