the cost price of 40 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 40 articles = 40 y the selling price of x articles = 1.25 y * x 1.25 y * x = 40 y x = 40 / 1.25 = 32 the answer is d ."
divide(multiply(40, const_4), add(const_4, const_1))