If 18 cups of flower will serve 88 people how many cups do you need to serve 220 people

45 cups of flour will be needed to serve 220 people.

Step-by-step explanation:

Find how many cups of flour per person. Divide 18/88 = 0.2

Now multiply that by the amount of people:

Multiply 0.2 x 220 = 45

That is how you get the answer.