How many packages of buns and soy patties should the school buy to sell in cafeteria each week?

Please provide me with more information so I can help you figure out how many packages of buns and soy patties the school should buy. I need to know:

* How many students eat in the cafeteria each week?

* What percentage of students typically buy buns and soy patties?

* How many buns come in a package?

* How many soy patties come in a package?

* Do students typically buy one bun and one patty, or do they sometimes buy more?

Once I have this information, I can help you calculate the appropriate number of packages to buy.