Question

One train 40km/h se ek poal ko 18 second me paar krte hai toh train Ki leugth batao

Answer 1

40 km/h = 40*1000/3600 = 400/36 = 100/9 = 11.1m/s

the train crosses 11.1 m in 1 sec

hence in 18 seconds = 11.1*18 = 199.8m

length of train is 200 m

Answer 2

speed = 40 km/ph or 11.1m/s

speed = distance/ time

therefore,

length = speed × time

Now,

l = 40 × 11

= 440 meters