Shopping malls are forbidden to skip slogans.

Assuming that there are 65438+ 1 rope skipping in 0 yuan, 150 rope skipping needs 150 yuan, and mall A has a discount of 10%, then the actual unit price of rope skipping is 0.9 yuan, and mall B buys nine and gets one free, which is equivalent to buying/kloc at-0/50 yuan.

Coupons are classified by media. Electronic coupons, paper coupons, online coupons, SMS coupons, mobile coupons, QR code discounts and paper coupons are very common and have become the most important promotional means for many businesses to celebrate their opening, such as "consumer guides" in real life; Internet coupons are generally circulated in the form of the Internet and can be used by printing or copying, which not only facilitates users, but also saves marketing costs for businesses. In mobile coupons, the mobile phone terminal media system is generally adopted, and consumers can download it directly to businesses on their mobile phones, which not only facilitates users and helps them save consumption cost, but also saves marketing costs for businesses.