A train 2500 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 options
A) 178	B) 180	C) 182	D) 184	E) 186

Rationale: "length = speed * time speed = l / t s = 2500 / 50 s = 50 m / sec speed = 50 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 180 kmph answer : b"
Answer: B