Answer:
b. 3 McBurgers and 2 cans of Alpo
Explanation:
If the goal is to maximize utility, Ms. Tightwad should look into purchasing the combination that yields the highest utility.
a. 4 McBurgers, 0 Alpo cans:
[tex]U_a = 40[/tex]
b. 3 McBurgers, 2 Alpo cans:
[tex]U_b = 36+13 = 49[/tex]
c. 2 McBurgers, 4 Alpo cans:
[tex]U_c = 28+17 = 45[/tex]
d. 1 McBurger, 6 Alpo cans (assume marginal utility stays constant after the 4th can):
[tex]U_d = 16+17+2 = 35[/tex]
Since option b. yields the highest utility, she should buy 3 McBurgers and 2 cans of Alpo