a train running at the speed of 180 km / hr crosses a pole in 7 seconds . what is the length of the train ?
"speed = ( 180 * 5 / 18 ) m / sec = ( 50 ) m / sec length of the train = ( speed x time ) = ( 50 * 7 ) m = 350 m . answer : e"
multiply(divide(multiply(180, const_1000), const_3600), 7)