Q4
Q         AVC         AC          MC       P       MR     TR         TC     Total Profit Marginal Profit
     9        41.10       52.21       30.70   261.00   50.00    2349      469.89    1879.11            19.30                                     Cost Curves
     10       40.00       50.00       30.10   261.00   50.00    2610         500        2110           19.90                60.00
     11       39.10       48.19       30.10   261.00   50.00    2871      530.09    2340.91            19.90
     12       38.40       46.73       30.70   261.00   50.00    3132      560.76    2571.24            19.30
     13       37.90       45.59       31.90   261.00   50.00    3393      592.67    2800.33            18.10
     14       37.60       44.74       33.70   261.00   50.00    3654      626.36    3027.64            16.30                50.00
     15       37.50       44.17       36.10   261.00   50.00    3915      662.55    3252.45            13.90
     16       37.60       43.85       39.10   261.00   50.00    4176       701.6     3474.4            10.90
     17       37.90       43.78       42.70   261.00   50.00    4437      744.26    3692.74              7.30
                                                                                                                            40.00
     18       38.40       43.96       46.90   261.00   50.00    4698      791.28    3906.72              3.10
     19       39.10       44.36       51.70   261.00   50.00    4959      842.84    4116.16             -1.70
     20       40.00       45.00       57.10   261.00   50.00    5220         900        4320            -7.10
                                                                                                                Cost ($)
                                                                                                                            30.00                                             AVC
                                                                                                                                                                              AC
                                                                                                                                                                              MC
Ans Q4 (B)
                                                                                                                            20.00
Total profit = 108.72
So the firm will Enjoy Economic Profits
                                                                                                                            10.00
                                                                                                                             0.00
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                                                                                                                                                  Quantity
                                                                                                                                                 Cost Curves
                                                                                                                            60.00
     Q         AVC         AC          MC       P       MR     TR         TC     Total Profit Marginal Profit
     9        41.10       52.21       30.70   35.00    35.00        315   469.89    -154.89              4.30
     10       40.00       50.00       30.10   35.00    35.00        350      500        -150             4.90
     11       39.10       48.19       30.10   35.00    35.00        385   530.09    -145.09              4.90               50.00
     12       38.40       46.73       30.70   35.00    35.00        420   560.76    -140.76              4.30
     13       37.90       45.59       31.90   35.00    35.00        455   592.67    -137.67              3.10
     14       37.60       44.74       33.70   35.00    35.00        490   626.36    -136.36              1.30
     15       37.50       44.17       36.10   35.00    35.00        525   662.55    -137.55             -1.10               40.00
     16       37.60       43.85       39.10   35.00    35.00        560    701.6      -141.6            -4.10
     17       37.90       43.78       42.70   35.00    35.00        595   744.26    -149.26             -7.70
     18       38.40       43.96       46.90   35.00    35.00        630   791.28    -161.28            -11.90
                                                                                                                 Cost ($)
     19       39.10       44.36       51.70   35.00    35.00        665   842.84    -177.84            -16.70               30.00                                             AVC
     20       40.00       45.00       57.10   35.00    35.00        700      900        -200           -22.10                                                                 AC
                                                                                                                                                                              MC
                                                                                                                            20.00
Ans Q4 (C)
Total profit = 108.72
                                                                                                                            10.00
CM = TR - TVC = 490 - (37.6 x 14) = -36.4
So the firm must Shutdown its operation
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