A train running at the speed of 56 km/hr crosses a pole in 9 seconds. Find the length of the train? Choose the correct choice from the following:  A) 140  B) 272  C) 278  D) 277  E) 112

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