A train running at the speed of 72 km/h goes past a pole in 15 s

A train running at the speed of 72 km/h goes past a pole in 15 s. What is the length of the train?

  1. 350 m
  2. 300 m
  3. 200 m
  4. 150 m

Answer

Distance traveled = length of train = speed × time.

Speed = 72 km/h = 72 × (10 / 36) m/s

So, length of the train = 72 × (10 / 36) × 15 m

= 20 × 15 m = 300 m

The correct option is B.