A train 495 m long is running at a speed of 63 km/hr. In what time will it pass a bridge 240 m long?\nOptions:\n(A) 39\n(B) 40\n(C) 41\n(D) 42\n(E) 43
Let’s work this out in a step by step way to be sure we have the right answer.
(D)
Speed = 63 * 5/18 = 35/2 m/sec\nTotal distance covered = 495 +240 = 735 m\nRequired time = 700 * 2/35 = 42 sec.

Final answer: (D)