A train of lengths 240 m crosses a platform in 20 seconds. if the speed of the train is 72 km/hr. then the length of the platform is :
Answers
Answered by
4
Let length of both train and platform be L.
Distance covered by the train to cross the platform = L + L = 2L
Time =1 min = 20 s
and speed = 72 km/h = 72 x 5/18 = 20m/s
∴ Distance = Speed x Time
⇒ 2L = 20 x 20
⇒ L = 200m
Distance covered by the train to cross the platform = L + L = 2L
Time =1 min = 20 s
and speed = 72 km/h = 72 x 5/18 = 20m/s
∴ Distance = Speed x Time
⇒ 2L = 20 x 20
⇒ L = 200m
Answered by
2
Answer:
Step-by-step explanation:
Similar questions