A train running at the speed of 180 km/hr crosses a pole in 18 seconds. What is the length of the train?  Options:
A) 800 B) 900 C) 950 D) 1000 E) 1050

Rationale: "speed = ( 180 x ( 5 / 18 ) m / sec = ( 50 ) m / sec . length of the train = ( speed x time ) . length of the train = ( ( 50 ) x 18 ) m = 900 m b"
Answer: B