a reduction of 30 % in the price of salt enables a lady to obtain 10 kgs more for rs . 200 , find the original price per kg ?
"answer : 200 * ( 30 / 100 ) = 60 - - - 10 ? - - - 1 = > rs . 6 200 - - - 140 ? - - - 6 = > rs . 8.57 . answer : e"
multiply(divide(divide(multiply(divide(30, const_100), 200), 10), multiply(divide(30, const_100), 200)), const_100)