a train running at the speed of 70 km / hr crosses a pole in 36 seconds . what is the length of the train ?
"speed = ( 70 * 5 / 18 ) m / sec = ( 175 / 9 ) m / sec length of the train = ( speed x time ) = ( 175 / 9 * 36 ) m = 700 m . answer : a"
multiply(divide(multiply(70, const_1000), const_3600), 36)