a train 2000 m long can cross an electric pole in 25 sec and then find the speed of the train ?
"length = speed * time speed = l / t s = 2000 / 25 s = 80 m / sec speed = 80 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 324 kmph answer : b"
divide(divide(2000, const_1000), divide(25, const_3600))