a train running at the speed of 50 km / hr crosses a pole in 18 seconds . find the length of the train .
"speed = 50 * ( 5 / 18 ) m / sec = 125 / 9 m / sec length of train ( distance ) = speed * time ( 125 / 9 ) * 18 = 250 meter answer : c"
multiply(divide(multiply(50, const_1000), const_3600), 18)