A train running at the speed of 60 km/hr crosses a pole in 21 seconds. What is the length of the train?
Choices.
A) 350 m	B) 278 m	C) 876 m	D) 150 m	E) 267 m

Rationale: "speed = ( 60 * 5 / 18 ) m / sec = ( 50 / 3 ) m / sec length of the train = ( speed x time ) = ( 50 / 3 * 21 ) m = 350 m . answer : a"
Answer: A