Correct Answer - Option 4 : 18
Given :
A train 200 metres long is moving at the rate of 40 kmph
Formula used :
Time = Distance/speed
Calculations :
Let the the time to cross man be 't'
t = 200/(100/9) (distance to cover = length of train and speed = 40 km/h = 100/9 m/s)
⇒ 18 seconds
∴ Option 4 is the correct choice.