Answer:
40 books revenue is maximized
Step-by-step explanation:
Profit is maximized where Marginal cost equals Marginal Revenue. The revenue is maximized where 40 books are sold for the price of $16. The marginal revenue at this point equals the marginal cost. Profit will be maximized for the ABC Books if it sells 40 books at the price of $16 per book. Here Marginal cost is $10 and marginal revenue is also $10. This is profit maximizing point.