The total utilities associated with the first 5 units of consumption of good X are 15, 30, 40, 47, and 50, respectively. What is the marginal utility associated with the third unit?
A) 15.
B) 70.
C) 85.
D) 10.
E) 45.

Question

Quizplus · Accepted Answer

The marginal utility of the third unit is the change in total utility from consuming the third unit, which is 40 (total utility of 3 units) minus 30 (total utility of 2 units), equaling 10.

The Total Utilities Associated with the First 5 Units of Consumption