a train running at the speed of 180 km / hr crosses a pole in 18 seconds . what is the length of the train ?
"speed = ( 180 x ( 5 / 18 ) m / sec = ( 50 ) m / sec . length of the train = ( speed x time ) . length of the train = ( ( 50 ) x 18 ) m = 900 m b"
multiply(divide(multiply(180, const_1000), const_3600), 18)