Sample Problem

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