In what time will a train 100 meters long cross an electric pole, if its speed is 36 km/hr
Choose the correct choice: A) 8.5 seconds B) 10 seconds C) 3.5 seconds D) 2.5 seconds E) 2.6 seconds

Rationale: "first convert speed into m / sec speed = 36 * ( 5 / 18 ) = 10 m / sec time = distance / speed = 100 / 10 = 10 seconds answer : b"
Answer: B