As Reba consumes four slices of pizza,her total utility rises from 0 to 18,to 24,to 28,and to 30,respectively.What is her marginal utility of the fourth slice of pizza?
A)28
B)24
C)2
D)7
E)8

Question

Quizplus · Accepted Answer

The marginal utility of the fourth slice of pizza can be calculated as the difference between the total utility of consuming four slices and the total utility of consuming three slices, which is 30-28=2. Therefore, the answer is C.
As for the best choice(s), without more information it is impossible to provide a specific recommendation. However, if Reba is maximizing her utility, she should consume pizza up to the point where her marginal utility equals the price of the pizza slice. If the price of a slice is greater than her marginal utility, she should not consume it.

As Reba Consumes Four Slices of Pizza,her Total Utility Rises