Problems in Linyi Internet Cafe

Thirty machines are one and a half yuan per hour. If each machine is turned on for ten hours without a day, 1.5* 10*30=450 yuan, 450*30= 13500 per month, eight yuan for all night. If fifteen machines are turned on all night every day, it is 8 */kloc-0 per month. Internet surfing fee 1500 tax 1200 electricity fee 1500 salary 1500 rent 1000 other 1000, totaling * * * 7,700 yuan, and monthly net profit/kloc-0. However, not everyone can open an Internet cafe. If you have no background, forget it. If you have a hard background, you can't lose it. shrewd