Given: Discount = 13% Selling Price of oven = Rs. 18000 New discount = 27.5% Formula Used: M.P - M.P × discount% = S.P Where, M.P = Marked Price, S.P = Selling Price Calculation: Let the marked price be x Now, Accroding to the formula used x−(10013​)×x=18000 ⇒ x = Rs 20,689.66 Now, we have to find New Selling price New Selling price =x−(10027.5​)×x ⇒ New Selling price =20,689.66−20,689.66×(10027.5​)∴ New Selling price = Rs 15,000