In what time will a train 100 meters long cross an electric pole, if its speed is 360 km/hr  Choose the correct option
A) 1 second
B) 4.5 seconds
C) 3 seconds
D) 2.5 seconds
E) none of these

Rationale: "explanation : first convert speed into m / sec speed = 360 * ( 5 / 18 ) = 100 m / sec time = distance / speed = 100 / 100 = 1 second answer : a"
Answer: A