According to the question, Cost price of 26kg of rice =26×20 ⇒ Rs. 520 Cost price of 30kg of rice =30×36 ⇒ Rs. 1080 Total cost price of 56kg of rice =520+1080 ⇒ Rs. 1600 Selling price of 56kg of rice =56×30 ⇒ Rs. 1680 Profit percent ={[(SP−CP)∕CP]×100} ⇒{[(1680−1600)∕1600]×100} ⇒(80∕1600)×100 ⇒5% ∴ The profit percentage is 5%.