Two trains in a station are heading to the same destination. The speed of train A is 45 mph and the speed of train B is 53 mph. If the train B starts after train A has travelled 48 miles, how soon in hours will train B catch train A?
Every hour, train B travels 53 45 = 8 miles than train A.
Train B will catch train A if train B travels 48 miles than train A,
Then, 48 ÷ 8 = 6 h