A train running at the speed of 60 km/hr crosses a pole in 12 sec. What is the length of the train? Options:
A) 200 m  B) 178 m  C) 186 m  D) 168 m  E) 150 m

Rationale: "speed = 60 * 5 / 18 = 50 / 3 m / sec length of the train = speed * time = 50 / 3 * 12 = 200 m answer : a"
Answer: A