a train running at the speed of 36 km / hr crosses a pole in 9 seconds . find the length of the train ?
"speed = 36 * ( 5 / 18 ) m / sec = 10 m / sec length of train ( distance ) = speed * time ( 10 ) * 9 = 90 meter answer : d"
multiply(divide(multiply(36, const_1000), const_3600), 9)