How long does a train 110 meters long running at the rate of 36km/hr take to cross a bridge 132 meters in length? Choose the correct choice from the following answers
A) 24.2 sec  B) 30.6 sec  C) 32.6 sec  D) 28.1 sec  E) 20.4 sec

Rationale: "distance = length of train + length of bridge = 110 + 132 = 242 speed = 36 km / hr = 36 * 5 / 18 = 10 m / s required time = 242 / 10 = 24.2 seconds answer is a"
Answer: A