A 75m long train is running at 54 km/hr. In how much time will it cross an electric pole?  Choose the correct answer: A) 5 B) 10 C) 15 D) 20 E) 25

Rationale: speed of the train = ( 54 * 5 / 18 ) m / sec = 15 m / sec . length of the train = ( speed x time ) time = ( length of the train / speed ) = ( 75 / 15 ) = 5 sec answer : a
Answer: A