https://i.imgur.com/0cETSaA.png
I'm a tutor and had this problem come up in practice with a student. I can't understand the information in the problem. I understand what the question is asking (increase in customers needed to maintain current revenue when a price drop is implemented after 4pm) but the information provided is unclear. If Michael has 40 customers buying $4 bananas, and he sells 130 bananas each day, does that mean each customer is buying multiple bananas? Or does 40 represent the number of customers after 4pm?