a train running at the speed of 80 km / hr crosses a pole in 10 seconds . what is the length of the train ?
speed = ( 90 * 5 / 18 ) m / sec = 25 m / sec length of the train = ( speed x time ) = ( 25 * 10 ) m = 250 m . answer : d
multiply(divide(multiply(80, const_1000), const_3600), 10)