Question: A train 210 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?\nOptions:\n(A) 40 sec\n(B) 50 sec\n(C) 44 sec\n(D) 49 sec\n(E) 28 sec Let's think first. Some random reasoning:
User
Speed = 45 * 5/18 = 25/2 m/sec\nTotal distance covered = 210 + 140 = 350 m\nRequired time = 350 * 2/25 = 28 sec The final answer: (E).
Assistant