D = 100 + 120 = 220
S = 36 * 5/18 = 10 mps
T = 220/10 = 22 sec
How many seconds will a train 100 meters long take to cross a bridge 120 meters long if the speed of the train is 36 kmph?

1: 54 sec
2: 65 sec
3: 25 sec
4: 22 sec
5: 24 sec