in what time will a train 200 metres long cross an electric pole , if its speed be 124 km / hr ?
"solution speed = ( 124 x 5 / 18 ) m / sec = 34.44 m / sec time taken = ( 200 / 34.44 ) sec = 5.8 sec . answer e"
divide(200, multiply(124, const_0_2778))