試題詳解

11. The table represents market demand Q for a good at different prices P. Q 100 200 300 400 500 600 700 800 900 1,000 P $270 $240 $210 $180 $150 $120 $90 $60 $30 $0 The firm’s unit cost of production is $60. Based on this information, which of the following is correct?
(A) At ? = 100, the firm’s profit is $20,000.
(B) The profit-maximizing output is ? = 400.
(C) The maximum profit that can be attained is $50,000.
(D) The firm will make a loss at all outputs of 800 and above.