a reduction of 25 % in the price of oil enables a house wife to obtain 5 kgs more for rs . 700 , what is the reduced price for kg ?
"a 700 * ( 25 / 100 ) = 175 - - - - 5 ? - - - - 1 = > rs . 35"
divide(divide(multiply(700, 25), const_100), 5)