A train takes 15 sec to cross a tree at the speed of 72 km/hr. The length of the train is:
Answer & explanation
Correct answer: option 2
Speed of train = 72 km/hr or 72 × \(\frac{5}{18}\) m/sec = 20 m/sec
Distance travel to cross the tree = 20 × 15 = 300 m
Hence, length of train = distance traveled by train = 300 m