a reduction of 23 % in the price of salt enables a lady to obtain 10 kgs more for rs . 100 , find the original price per kg ?
"100 * ( 23 / 100 ) = 23 - - - 10 ? - - - 1 = > rs . 2.3 100 - - - 77 ? - - - 2.3 = > rs . 2.99 answer : a"
multiply(divide(divide(multiply(divide(23, const_100), 100), 10), multiply(divide(23, const_100), 100)), const_100)