Table 9-3 Arnie Sells Basketballs in a Perfectly Competitive Market

Table 9-3
$\begin{array}{|c|c|c|c|}\hline \text { Quantity } & \text { Total Cost } & \begin{array}{c}\text { Average } \\\text { Total Cost }\end{array} & \begin{array}{c}\text { Marginal } \\\text { Cost }\end{array} \\\hline 0 & \$ 10.00 & \cdots & \cdots \\\hline 1 & 15.00 & \$ 15.00 & \$ 5.00 \\\hline 2 & 17.50 & 8.75 & 2.50 \\\hline 3 & 22.50 & 7.50 & 5.00 \\\hline 4 & 30.00 & 7.50 & 7.50 \\\hline 5 & 40.00 & 8.00 & 10.00 \\\hline 6 & 52.50 & 8.75 & 12.50 \\\hline 7 & 67.50 & 9.64 & 15.00 \\\hline 8 & 85.00 & 10.63 & 17.50 \\\hline 9 & 105.00 & 11.67 & 20.00 \\\hline\end{array}$ Arnie sells basketballs in a perfectly competitive market. Table 9-3 summarizes Arnie's output per day (Q) , total cost (TC) , average total cost (ATC) and marginal cost (MC) .
-Refer to Table 9-3.What price (P) will Arnie charge and how much profit will he earn if the market price of basketballs is $12.50?

A) Price and profit cannot be determined from the information given.
B) P = $12.50; profit = $52.50
C) P = $12.50; profit = $22.50
D) P = $20; profit = $75.00.

Correct Answer:

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