A train is 300 meter long is running at a speed of 35 km/hour. In what time will it pass a bridge of 115 meter length? Choose the correct choice:
A) 29 B) 23 C) 47.119 D) 44.586 E) 42.686

Rationale: "speed = 35 km / hr = 35 * ( 5 / 18 ) m / sec = 175 / 18 m / sec total distance = 300 + 115 = 415 meter time = distance / speed = 415 * ( 18 / 175 ) = 42.686 seconds . answer : e"
Answer: E