Answer:
320 cups of soup
Explanation:
Given;
Total number of guests expected T = 800
Proportion of that may order soup p = 2 out of 5 = 2/5
The number of cups he should prepare should be equal to the number of guests that are expected to order soup appetizer.
Number of guests Expected to order soup appetizer n is;
n = proportion × total guest = p × T
Substituting the given values;
n = 2/5 × 800 = 320
Therefore, he should prepare 320 cups of soup.