the demand function and total cost function for a product are 6P = 660 − 3Q, TC = 80 − 20Q2 + 600Q (a) Write down expressions for: (i) Average cost, (ii) marginal cost, (iii) total revenue, (iv) Marginal revenue,

Managerial Economics: A Problem Solving Approach
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Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor
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Chapter7: Economies Of Scale And Scope
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Q3) the demand function and total cost function for a product are

6P = 660 − 3Q, TC = 80 − 20Q2 + 600Q

(a) Write down expressions for:

(i) Average cost, (ii) marginal cost, (iii) total revenue, (iv) Marginal revenue,

(v) Profit.

(b) Determine the values of Q for which total cost is a maximum. Calculate the maximum costs. Calculate the profit when total costs are a maximum.

(c) Determine the value of Q for which profit is a minimum. What is the minimum profit?

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