A train 2500 m long can cross an electric pole in 100 sec and then find the speed of the train?	Select the correct option:
A) 90
B) 60
C) 120
D) 180
E) 360

Rationale: "length = speed * time speed = l / t s = 2500 / 100 s = 25 m / sec speed = 25 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 90 kmph answer : a"
Answer: A