20% discount is offered on an item. By applying a promo code Rishi wins 4% cash back. What is the equivalent single discount?

33% 23.20% 22.60% 24%

23.20%

Discount = 20% Cashback = 4% Equivalent single discount =  x + y - \(\frac{x × y}{100}\)                                        =   20 +4 - \(\frac{20 × 4}{100}\) = 23.20%