SOLUTION: Trains A and B are travelling at the same direction on paralell tracks. Train A is travelling at 40 miles per hour and Train B is travelling at 60 miles per hour. Train A passes a
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-> SOLUTION: Trains A and B are travelling at the same direction on paralell tracks. Train A is travelling at 40 miles per hour and Train B is travelling at 60 miles per hour. Train A passes a
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Question 141699: Trains A and B are travelling at the same direction on paralell tracks. Train A is travelling at 40 miles per hour and Train B is travelling at 60 miles per hour. Train A passes a station at 3:25 AM. If train B passes the same station at 3:37AM. At what time will train B catch up with train A??
How do I figure this one out?? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Trains A and B are traveling at the same direction on parallel tracks.
Train A is traveling at 40 miles per hour and
Train B is travellng at 60 miles per hour.
Train A passes a station at 3:25 AM.
If train B passes the same station at 3:37AM. At what time will train B catch up with train A??
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The problem starts at the station.
B leaves the station 12 minutes, or (1/5) hr., after A.
When B catches A they are the same distance from the station.
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A DATA;
rate = 40 mph ; time = x hrs ; distance = 40x miles
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B DATA:
rate = 60 mph ; time = (x-(1/5)) ; distance = 60(x-(1/5)) = 60x-12 miles
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EQUATION:
40x = 60x-12
20x = 12
x = 3/5 hr = 36 minutes
3:25 + 36 = 4:01 AM (time A catches up to B)
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Cheers,
Stan H.
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