Trains A and B are running in the same direction at 40 km/h and 60 km/h, respectively. If both the trains started at the same time from the same place, then what will be the distance between them after 1 hour ?
Answer & explanation
Correct answer: option 2
Relative speed ( when moves in same direction ) = ( 60 - 40 )km/h
= 20 km/h
Distance = Speed × Time
= 20 × 1 = 20 km