a train running at the speed of 90 km / hr crosses a pole in 5 seconds . find the length of the train .
"explanation : speed = 90 * ( 5 / 18 ) m / sec = 25 m / sec length of train ( distance ) = speed * time = 25 * 5 = 125 meter option d"
multiply(divide(multiply(90, const_1000), const_3600), 5)