Two trains A and B start running together from the same point in the same direction at 90 kilometre per hour and 60 km per hour respectively. If the length of each train is 250m then how long will it take for the train B cross train A?
Answers
Answered by
0
Answer:
1 min
Step-by-step explanation:
Relative velocity of A with respect to B = 90 - 60
= 30kmph
Total distance to be travelled = 250 + 250
= 500m = 0.5 km
We know that
t = d/s
=0.5/30 = 1/60 hr = 1 minute
Similar questions