A train of 30 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 1.5 km long?	Options:
A) 6 B) 3.3 C) 4 D) 9 E) 2

Rationale: "d = 30 * 60 + 1500 = 3300 m t = 3300 / 60 * 18 / 5 = 198 sec = 3.3 mins answer : b"
Answer: B