how long will it take a train travelling at 78 kmph to pass an electric pole if the train is 110 meters in lenght ?
sol . speed = [ 78 x 5 / 18 ] m / sec = 21.7 m / sec . time taken = ( 110 / 21.7 ) sec = 5.07 sec . answer c
multiply(divide(divide(110, const_1000), 78), const_3600)