A train running at the speed of 70 km/hr crosses a pole in 9 sec. What is the length of the train?  Choose the correct choice from the following options.
A) 227 m
B) 150 m
C) 167 m
D) 175 m
E) 187 m

Rationale: "speed = 70 * 5 / 18 = 175 / 9 m / sec length of the train = speed * time = 175 / 9 * 9 = 175 m answer : d"
Answer: D