The total utility of consuming 6 units of a good is 255. The marginal utility of the 6th unit is 45 and the marginal utility of the 5th unit is 60. The total utility of consuming 5 units of the good is
A) 300.
B) 150.
C) 210.
D) 195.

Question

Quizplus · Accepted Answer

The total utility of consuming 6 units of the good is 255, which means the total utility of consuming the first five units must be 255 - 45 = 210.
Therefore, the total utility of consuming 5 units of the good is 210.

The Total Utility of Consuming 6 Units of a Good