How long does a train 110 m long running at the speed of 54 km/hr takes to cross a bridge 132 m length? Choose the correct choice from the following answers:
A) 12.9 sec
B) 12.1 sec
C) 17.9 sec
D) 16.13 sec
E) 14.9 sec

Rationale: "speed = 54 * 5 / 18 = 15 m / sec total distance covered = 110 + 132 = 242 m . required time = 242 / 15 = 16.13 sec . answer : d"
Answer: D