How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 175 m length?
Select the correct option.
A) 12.9 sec	B) 12.1 sec	C) 17.9 sec	D) 16.8 sec	E) 14.25 sec

Rationale: "speed = 72 * 5 / 18 = 20 m / sec total distance covered = 110 + 175 = 285 m . required time = 285 / 20 = 14.25 sec . answer : e"
Answer: E