Question

Jean runs a clothing store that specializes in selling jeans. Last month, she sold 110 pairs at $85 each. This month she wants to run a sale. She believes that for every $5 decrease in price, she will sell 10 more pairs of jeans. How should she price her jeans to maximize her revenue?​

Answer 1

70$ per Jean. 70$ • 140 Jeans = 9800$

All other prices bring smaller profits:
75•130= 9750$
65•150= 9750$
80•120= 9600$
Etc.