Speed = 45 * 5/18 = 25/2 m/sec
Total distance covered = 160 + 140 = 300 m
Required time = 300 * 2/25 = 24 sec
A train 160 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?

[A] 40 sec
[B] 50 sec
[C] 44 sec
[D] 24 sec
[E] 60 sec