A train running at the speed of 240 km/hr crosses a pole in 21 seconds. What is the length of the train?	Pick one.
A) 1300 m	B) 1350 m	C) 1400 m	D) 1450 m	E) 1500 m

Rationale: "speed = ( 240 * 5 / 18 ) m / sec = ( 200 / 3 ) m / sec length of the train = ( speed x time ) = ( 200 / 3 * 21 ) m = 1400 m . answer : c"
Answer: C