Let the production cost be Rs. 100 The, Selling Price = Rs. 120 Price of component A = Rs. 10 Price of component B = Rs. 20 Price of other components =Rs.(100−10−20)=Rs‌.70 After increase in prices, Price of component A = Rs. 12 Price of component B = Rs. 28 Price of other components = Rs. 70 Total Cost of production =Rs.(12+28+70)=Rs‌.110 Selling price =Rs.(1.15×120)=Rs‌.138 Profit = Rs. 28 Profit %=25.45% Hence, option B is the correct answer.