a reduction of 25 % in the price of salt enables a lady to obtain 10 kgs more for rs . 100 , find the original price per kg ?
"100 * ( 25 / 100 ) = 25 - - - 10 ? - - - 1 = > rs . 2.5 100 - - - 75 ? - - - 2.5 = > rs . 3.3 answer : d"
multiply(divide(divide(multiply(divide(25, const_100), 100), 10), multiply(divide(25, const_100), 100)), const_100)