In what time will a train 90 meters long cross an electric pole, if its speed is 124 km/hr	Choose the correct choice from the following options:
A) 5 seconds  B) 4.5 seconds  C) 3 seconds  D) 2.6 seconds  E) none of these

Rationale: "explanation : first convert speed into m / sec speed = 124 * ( 5 / 18 ) = 34 m / sec time = distance / speed = 90 / 34 = 2.6 seconds option d"
Answer: D