Question

how long will it rain 120 metre long take a clear platform 130 long if its speed is 50 km per hour ​

Answer 1

Answer:

distance = length of the train + length of the platform

distance is equals to 120 + 130 is equals to 250 m = 0.25 km

speed = 50kmph

so time = d/s = 0.25/50 = 1/200 hrs = 18 seconds