A casserole recipe requires 2 cups of flour to serve 4 people. However. 5 times more people are expected. How many cups of flour should be used? (A) 11 (B) 10 (C) 20 (D) 8

If the casserole recipe requires 2 cups of flour to serve 4 people, we can determine how much flour is needed for 20 people (which is 5 times more than 4 people). First, we find out how much flour is needed per person: \[ \text{Flour per person} = \frac{2 \text{ cups}}{4 \text{ people}} = 0.5 \text{ cups per person} \] Now, we multiply the flour needed per person by the number of people (20): \[ \text{Total flour for 20 people} = 0.5 \text{ cups per person} \times 20 \text{ people} = 10 \text{ cups} \] Thus, the amount of flour needed for 20 people is **10 cups**. The answer is (B) 10.