Question

Mollie derives total utility of 10 utils after having 4 mangoes and total utility on consuming 5 mangoes is 9. What is her marginal utility for the 5^th mango?

Options

• +1 util

• 0 util

• −1 util

• 9 utils

Answer 1

−1 util

Explanation:

Marginal utility is the change in total utility from one additional mango. \[ MU_5 = TU_5 - TU_4 = 9 - 10 = -1\text{ util} \]