Discount=__________.

A retail offers the following discount scheme for buyers on an article. I. Two successive discounts of 10%. II. A discount of 12% following by a discount of 8% III. Successive discounts of 15% and 5% IV. A discount of 20% The selling price will be minimum under the scheme.

The list price of a commodity is the price after a 20% discount on the retail price. The festivel discount price on the commodity is the price after a 30% discount on the list price. Customers purchase commodities from stores at a festival discount price. What is the effective discount offered by the store on the commodity on its retail price?

A retailer offers the following discount schemes for buyers on an article. I. Two successive discounds of 10%. II. A discount of 12% followed by a discount of 8%. III. Successive discounts of 15% and 5%. IV. A discount of 20%. The selling price will be minimum under the scheme