Question

A train is running at a speed of 36km/hour. If the length of the train is 200m, find the time (in second) taken by the train to pass by a pole.

Help me plz ​

Answer 1

Answer:

20seconds

Step-by-step explanation:

speed=36km/h

3600=36×1000

1sec=36×1000/3600

1sec=10m

distance - 10 -. 200

time taken. -. 1. -. x

it is a direct variation

10/1=200/x

cross multiply

10x=200

x=200/10

x=20sec

time taken = 20seconds