Assuming that the marginal utility of the first four pieces of candy was 30, 28, 22, and 20 respectively, how much total utility was derived from eating the first three pieces of candy?
A) 58
B) 80
C) 22
D) 100

Question

Quizplus · Accepted Answer

To find the total utility derived from eating the first three pieces of candy, we must simply add the marginal utility of each piece up to the third one. 
30 + 28 + 22 = 80
Therefore, the correct answer is B, 80.

Assuming That the Marginal Utility of the First Four Pieces