If Joan consumes 1 dinner roll, she has total utility of 15; if she consumes 2, she has total utility of 27; if she consumes 3, she has total utility of 37; and if she consumes 4, she has total utility of 45. What is the marginal utility of the fourth dinner roll consumed?
A) 11.25 units of utility
B) 124 units of utility
C) 45 units of utility
D) 8 units of utility
E) 37 units of utility

Question

Quizplus · Accepted Answer

The marginal utility of the fourth dinner roll is the additional utility gained from consuming it, calculated as the total utility with four rolls (45) minus the total utility with three rolls (37), which equals 8 units of utility.

If Joan Consumes 1 Dinner Roll, She Has Total Utility