Three hamburgers are not expensive in 20 yuan. It can be said that it is very cheap. Now the price of a hamburger is generally around 6-30 yuan. Different hamburger brands have different prices. For example, one hamburger in Huakeduo 12- 15 yuan, and one in 5 yuan at the time of discount. The price of hamburgers in KFC is one in 25 yuan. Dicos is one in 20 yuan and Burger King is one in 15-30 yuan.