A train 1000 m long can cross an electric pole in 200 sec and then find the speed of the train?	Options
A) 12  B) 14  C) 16  D) 18  E) 20

Rationale: "length = speed * time speed = l / t s = 1000 / 200 s = 5 m / sec speed = 5 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 18 kmph answer : d"
Answer: D