A train running at the speed of 120 km/hr crosses a pole in 12 seconds. What is the length of the train?  Choose the correct choice.
A) 200 m
B) 250 m
C) 300 m
D) 350 m
E) 400 m

Rationale: "speed = ( 120 * 5 / 18 ) m / sec = ( 100 / 3 ) m / sec length of the train = ( speed x time ) = ( 100 / 3 * 12 ) m = 400 m . answer : e"
Answer: E