A train is 360 meter long is running at a speed of 50 km/hour. In what time will it pass a bridge of 140 meter length. Choices
A) 26 seconds B) 36 seconds C) 46 seconds D) 56 seconds E) none of these

Rationale: "explanation : speed = 50 km / hr = 50 * ( 5 / 18 ) m / sec = 125 / 9 m / sec total distance = 360 + 140 = 500 meter time = distance / speed = 500 / 125 / 9 = 36 seconds answer : b"
Answer: B