Introduction - If you have any usage issues, please Google them yourself
On a morning class, and finally looked forward to the time to eat at noon. You rhetoric to talk about what I eat at noon. Some people say: eat canteens to cover rice! , Some people say: eat Rongcheng people! Finally, a grown-up hostel pound the table: We called take-away! So the students hungry call to take-away. According to the provisions of the restaurant, meals are calculated as follows:
Less than 20 yuan per single (excluding) not to room service
Each single in 20 yuan (inclusive) to 30 yuan (excluding) will be charged between 8 yuan meals
Each 30 (inclusive) to 40 (excluding) will be charged between 5 yuan meal delivery
Each single in the 40 yuan (inclusive) or more will not charge meal delivery.
Please calculate the full cost of the lunch.