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CA Video is in the perfectly competitive DVD repair business

Accounting Dec 09, 2020

CA Video is in the perfectly competitive DVD repair business. CA found that the total cost of repairing q DVD is TC=2q2+100TC=2q2+100.

1. Write an equation for CA's average total cost.

2. Write an equation for CA's variable cost.

3. Write an equation for CA's marginal cost (use calculus).

Expert Solution

Given total cost function:

TC=2q2+100TC=2q2+100

1) Average total cost is the total cost per unit of labor.

  • ATC = TC/Q

ATC=(2q2+100)/qATC=(2q2+100)/q

  • ATC=2q+100/qATC=2q+100/q

2) Variablecost=2q2Variablecost=2q2

Variable cost increases with increase in the output.

3) Marginal cost is the additional cost incurred by producing one more unit of output. It is calculated by differentiating total cost function with respect to output.

  • MC=dTC/dQMC=dTC/dQ
  • MC=4q
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