the cost price of 30 articles is the same as the selling price of x articles . if the profit is 25 % , what is x ?
let the cost price = y the cost price of 30 articles = 30 y the selling price of x articles = 1.25 y * x 1.25 y * x = 30 y x = 30 / 1.25 = 24 the answer is d .
divide(multiply(30, const_4), add(const_4, const_1))