A train 441 m long can cross an electric pole in 21 sec and then find the speed of the train? Choose the most appropriate option:
A) 88 kmph	B) 89 kmph	C) 76 kmph	D) 16 kmph	E) 18 kmph

Rationale: length = speed * time speed = l / t s = 441 / 21 s = 21 m / sec speed = 20 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 76 kmph answer : c
Answer: C