Two trains start at stations that are 62 km apart. If Train A heads south at 18 km/hr and Train B heads north at 22 km/hr, how long will it be before they pass each other?

Answer 1

Let x be the distance traveled by train A and Let y be the distance traveled by Train B before they meet.

When they meet,

x+y = 62 km

I know Distance = speed X time

Let t be the time when they meet.

x = 18t

y = 22t

Substituting x and y in above equation,

18t + 22t = 62

40t = 62

t = 62/40 hr