SOLUTION: train a and b are travelling in the same direction on parallel tracks. train a is travelling at 60 mph and train b at 70 mph. train a passes a station at 7:25 pm. If train b passes
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Question 211364: train a and b are travelling in the same direction on parallel tracks. train a is travelling at 60 mph and train b at 70 mph. train a passes a station at 7:25 pm. If train b passes the same station at 7:55 pm at what time will train b catch up with train a" Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! train a and b are travelling in the same direction on parallel tracks. train a is travelling at 60 mph and train b at 70 mph. train a passes a station at 7:25 pm. If train b passes the same station at 7:55 pm at what time will train b catch up with train a"
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In the 1/2 hour before train B passes the station, train A goes 30 miles (60 mph for 1/2 hour).
Train B is gaining on Train A at 10 mph (70 - 60). To gain the 30 miles at 10 mph will take 3 hours (30/10).
755 + 3 = 10:55 PM
