Exhibit 6-1 Total utility for good X

As shown in Exhibit 6-1, the marginal utility for the second unit consumed is:
A) 0.
B) 40.
C) 80.
D) 200.

Question

Exhibit 6-1 Total utility for good X

As shown in Exhibit 6-1, the marginal utility for the second unit consumed is:
A) 0. 
B) 40. 
C) 80. 
D) 200.

Quizplus · Accepted Answer

The marginal utility for the second unit consumed is the change in total utility between the first and second units consumed. From the graph, we can see that the total utility for the first unit is 40 and the total utility for the second unit is 80, so the marginal utility for the second unit is 80-40=40. Therefore, the answer is B.

Exhibit 6-1 Total Utility for Good X