How long will it take a train travelling at 78kmph to pass an electric pole if the train is 110 meters in lenght?  Choose the correct choice from the following answers: A) 2.07 B) 3.07 C) 5.07 D) 4.07 E) 2

Rationale: sol . speed = [ 78 x 5 / 18 ] m / sec = 21.7 m / sec . time taken = ( 110 / 21.7 ) sec = 5.07 sec . answer c
Answer: C