A train 700 m long can cross an electric pole in 40 sec and then find the speed of the train?	Pick:  A) 987  B) 271  C) 72  D) 27  E) 63

Rationale: "length = speed * time speed = l / t s = 700 / 40 s = 17.5 m / sec speed = 17.5 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 63 kmph answer : e"
Answer: E