SOLUTION: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40mph and train B is traveling at 44 mph. Train a passes a station at 7:10am. If trai

Question 430380: Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40mph and train B is traveling at 44 mph. Train a passes a station at 7:10am. If train B passes the same station at 7:40am, at what time will train B catch up to train A?
Is this the correct answer 1:10pm?
Help please
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Train A 40 mph
Train B 44 mph
Train A passes station at 07:10
Train B passes station at 07:40

Difference in time=00:30
Train Awill have covered 20 miles before Train B starts

catch up distance= 20 miles
catch up speed = 44-40 mph
catch up speed = 4 mph

Catchup time = catchup distance/catch up speed
catch up time= 20 / 4
catch up time= 5 hours
catch up time= 300 minutes
It will catch up at 12:40PM

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