Question

A school cafeteria makes cheese sauce for macoroni using 15 cups of Swiss cheese and 17 cups of cheddar cheese. Perry tries to make the sauce for a family party using 5 cups of Swill and 7 cups of cheddar is perry using the correct ratio?

Answer 1

Swiss Cheese : Cheddar Cheese
       15             :         17

     (÷ 3)                     (÷3)

       5               :         17/3 = 5 2/3

No, Perry is not using the correct ratio. If he is using 5 cups of Swiss Cheese, he should only use 5 2/3 cup of Cheddar Cheese.

Answer 2

Yes he is because the ratio is 1:2