Student: 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 1.0 km long?\nOptions:\n(A) 2 mins 14 sec\n(B) 2 mins 34 sec\n(C) 150 sec\n(D) 164 sec\n(E) 2 mins 44 sec.
Another student: Let's say, hmmm...

User
D = 25 * 60 + 1000 = 2500 m\nT = 2500/60 * 18/5 = 150 se Final answer: (C).
Assistant