a train running at the speed of 120 km / hr crosses a pole in 9 seconds . find the length of the train .
"speed = 120 * ( 5 / 18 ) m / sec = 200 / 6 m / sec length of train ( distance ) = speed * time ( 200 / 6 ) * 9 = 300 meter answer : e"
multiply(divide(multiply(120, const_1000), const_3600), 9)