a reduction of 50 % in the price of apples would enable a man to obtain 50 more for rs . 50 , what is reduced price per dozen ?
"c 50 * ( 50 / 100 ) = 25 - - - 50 ? - - - 12 = > rs . 6"
multiply(divide(divide(multiply(50, 50), const_100), 50), const_12)