A train running at the speed of 56 km/hr crosses a pole in 9 sec. What is the length of the train?
Select the correct option
A) 140 m
B) 786 m
C) 566 m
D) 546 m
E) 445 m

Rationale: "speed = 56 * 5 / 18 = 140 / 9 m / sec length of the train = speed * time = 140 / 9 * 9 = 140 m answer : a"
Answer: A