Question

A train, 540 m long, is running with a speed of 15 m/s. In what
time will it pass a 180 m long tunnel?
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Answer 1

answer

explanation

distance= speed/time

by arranging we have

time=speed/distance

distance=720 m/s

speed=15 m/s

time= 15/720

time=0.02 s

Answer 2

Answer:

LENGTH of train = 540m

length of tunnel = 180m

So total distance train has to cover

includes its own length and tunnel length

Hence

Total distance = 540+180=720m

No given speed = 15m/s

So as we know

Time = distance / speed

=720/15

=48

so it will take 48 secondss.