Q. 14.0( 2 Votes )

Given total cost

Answer :

Total Cost TC=3q2 + 7q + 12


q=3 (Given)


Marginal cost:


TC/q=3*2q +7+0


=6q+7


Since q=3,


6q+7 =6*3 +7


= 18 + 7


= 25


Marginal cost if q=3 is 25.


Average cost:


Average cost= TC/q


And q = 3,


Average Cost = (3*32 + 7*3 + 12)/3


= (27+21+12)/3


= 60/3


= 20


Average cost if q=3 is 20.


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