Give stream of consciousness and then the final answer. A train of 24 carriages, each of 60 meters length, when an engine also of 60 meters length is running at a speed of 60 kmph. In what time will the train cross a bridge 1.4 km long?\nOptions:\n(A) 2 mins 14 sec\n(B) 2 mins 34 sec\n(C) 2 mins 54 sec\n(D) 4 mins 54 sec\n(E) 2 mins 44 sec
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D = 25 * 60 + 1400 = 2900 m\nT = 2900/60 * 18/5 = 174 sec = 2 mins 54 se
The final answer: (C).
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