A train 200 metres long is moving at the rate of 40 kmph. In how many seconds will it cross a man standing near the railway line?

1. 12
2. 15
3. 16
4. 18

Answer

The speed of the train = 40 km/hr = 40 × 5/18 m/s = 200/18 m/s

Distance = 200 m

Time = Distance / Speed

= 18 s

The correct option is D.