How many seconds will a train 120 meters long take to cross a bridge 200 meters long if the speed of the train is 36 kmph?
Choose the correct choice from the following:  A) 22 sec  B) 32 sec  C) 25 sec  D) 24 sec  E) 31 sec

Rationale: "explanation : d = 120 + 200 = 320 s = 36 * 5 / 18 = 10 mps t = 250 / 10 = 32 sec answer : option b"
Answer: B