Some question: A train of 25 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 2.5 km long?\nOptions:\n(A) 4\n(B) 3\n(C) 5\n(D) 7\n(E) 9
Some stream of consciousness:
User
D = 25 * 60 + 2500 = 4000 m\nT = 4000/60 * 18/5 = 240 sec = 4 mins The answer: (A).
Assistant