Enunciados de questões e informações de concursos
The offer of "Free" merchandise or service is a promotional device frequently used to attract customers. Providing such merchandise or service with the purchase of some other article or service has often been found to be a useful and valuable marketing tool. Because the purchasing public continually searches for the best buy, and regards the offer of "Free" merchandise or service to be a special bargain, alI such offers must be made with extreme care so as to avoid any possibility that consumers will be misled or deceived. Representative of the language frequently used in such offers are "Free", "Buy 1-Get 1 Free", "2-for-1 Sale". "50% off with purchase of Two", "1 Sale". etc (related representations that raise many of the same questions include "XX Cents-Off" "Half-Price Sale", "1/2 Off", etc). When the purchaser is told that an article is "Free" to him if another article is purchased, the word "Free" indicates that be is paying nothing for that article and no more than the regular price for the other. Thus, a purchaser has the right to believe that the merchant wiII not directly and immediately recover, in whole or in part, the cost of the free merchandise or service by marking up the price of the article which must be purchased, by the substitution of inferior merchandise or service, or otherwise.
http://www.ftc.gov/bcp/guides/free.htm (wich adaptations)