Some question: A train is running at a speed of 40 km/hr and it crosses a post in 18 seconds. What is the length of the train?\nOptions:\n(A) 190 metres\n(B) 160 metres\n(C) 180 metres\n(D) 120 metres\n(E) 200 metres
Some stream of consciousness:
User
Speed of the train, v = 40 km/hr = 40000/3600 m/s = 400/36 m/s\nTime taken to cross, t = 18 s\nDistance Covered, d = vt = (400/36)× 18 = 200 m\nDistance covered is equal to the length of the train = 200 m The answer: (E).
Assistant