A train 500 m long can cross an electric pole in 50 sec and then find the speed of the train?
Choose the correct choice from the following answers:  A) 76 kmph  B) 54 kmph  C) 72 kmph  D) 34 kmph  E) 36 kmph

Rationale: "length = speed * time speed = l / t s = 500 / 50 s = 10 m / sec speed = 10 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 36 kmph answer : e"
Answer: E