Jamie's Marginal Utility from Muffins and from Doughnuts (In Utils)is

question 43

Multiple Choice

Jamie's marginal utility from muffins and from doughnuts (in utils) is shown in the accompanying table. Jamie spends a total of $8 on muffins and/or doughnuts every morning. The price of each muffin is $2 and the price of each doughnut is $1. $$\begin{array} { | c | r | r | r | } \hline \begin{array} { c } \text { Mufins } \\\text { Per Day }\end{array} & \begin{array} { c } \text { Marginnl Utility } \\\text { Per Muftin }\end{array} & \begin{array} { c } \text { Deughnuts } \\\text { Per Day }\end{array} & \begin{array} { c } \text { Marginal Utility } \\\text { Per Deughnut }\end{array} \\\hline 1 & 40 & 2 & 20 \\\hline 2 & 30 & 4 & 15 \\\hline 3 & 20 & 5 & 10 \\\hline\end{array}$$ If Jamie consumes 3 muffins a day, then what is her marginal utility per dollar spent on the third muffin?

• A)10
• B)20
• C)30
• D)40

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