You have the following data about one of the production lines of a factory for soft drinks: The maximum capacity of the machines and machines in it is (20,000) cartons annually. After the expansion, a new machine was added with a maximum capacity of (7,000) cartons annually. It started operating after (3) months from the beginning of the year . After (8) months, one of the two places broke down, with a maximum capacity of (5,000)

Required:

(a) Calculate the maximum net energy for the entire period. carton annually.

(B) - Calculate the maximum net energy for the period of exploitation.