A train that is running at the speed of 72 km/h crossesan electric pole in 36 seconds. The length of the train (in metres) is:
Answer & explanation
Correct answer: option 4
Speed = 72 km/h
72 km/h = 72 × \(\frac{5}{18}\) = 20 m/sec
Length of train = 36 × 20 = 720 m