A train running at the speed of 70 km/hr crosses a pole in 36 seconds. What is the length of the train? Options
A) 700 B) 770 C) 707 D) 710 E) 720

Rationale: "speed = ( 70 * 5 / 18 ) m / sec = ( 175 / 9 ) m / sec length of the train = ( speed x time ) = ( 175 / 9 * 36 ) m = 700 m . answer : a"
Answer: A