a train running at the speed of 100 km / hr crosses a pole in 18 seconds . what is the length of the train ?
speed = ( 100 * 5 / 18 ) m / sec = ( 250 / 9 ) m / sec length of the train = ( speed x time ) = ( 250 / 9 * 18 ) m = 500 m . answer : c
multiply(divide(multiply(100, const_1000), const_3600), 18)