A train 700 m long can cross an electric pole in 20 sec and then find the speed of the train?  Options.
A) 117 kmph  B) 178 kmph  C) 126 kmph  D) 118 kmph  E) 119 kmph

Rationale: "length = speed * time speed = l / t s = 700 / 20 s = 35 m / sec speed = 35 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 126 kmph answer : c"
Answer: C