The cost price of articles A and B = 1200 + 1600 = Rs. 2800 ⇒ The selling price of articles A and B = cost price × (100 + profit)% = 2800 × 125% ⇒ The selling price of articles A and B = Rs. 3500 ⇒ The selling price of articles A + the selling price of articles B = 3500 ⇒ 1380 + the selling price of articles B = 3500 ⇒ The selling price of articles B = Rs. 2120 ⇒ Profit % on article B = [(2120 – 1600)/1600] × 100 = 520/16 = 32.5% ∴ The profit percentage on the selling of article B is 32.5%.