A train is 360 meter long is running at a speed of 75 km/hour. In what time will it pass a bridge of 140 meter length?  Answers
A) 87  B) 69  C) 40  D) 72  E) 24

Rationale: "speed = 75 km / hr = 75 * ( 5 / 18 ) m / sec = 125 / 6 m / sec total distance = 360 + 140 = 500 meter time = distance / speed = 500 * ( 6 / 125 ) = 24 seconds answer : e"
Answer: E