the cost price of 20 articles is the same as the selling price of x articles . if the profit is 25 % then determine the value of x .
"explanation : let the cost price 1 article = re 1 cost price of x articles = x s . p of x articles = 20 gain = 20 - x = > 25 = ( 20 − x / x ∗ 100 ) = > 2000 − 100 x = 25 x = > x = 16 option c"
divide(multiply(20, const_4), add(const_4, const_1))