How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 132 m length?
Choose the correct choice from the following options: A) 12.6 B) 12.0 C) 12.1 D) 12.3 E) 12.2

Rationale: "speed = 72 * 5 / 18 = 20 m / sec total distance covered = 110 + 132 = 242 m . required time = 242 / 20 = 12.1 sec . answer : b"
Answer: B