the marked price of 42 article was equal to the cost price of 70 article the selling price of 25 article was equal to the mald price of 21 article find the profit or loss percent from the sale of each article

Hi Harsh Gour Let the marked-up price be 'm', cost price be 'c' and selling price be 's'. From the given information, 42m = 70c => c = 0.6m. 25s = 21 m => s = 0.84m. Profit% = (S.P - C.P)/C.P * 100 = (0.84m-0.6m)/0.6m * 100 = 40% Hope this Helps!