courtesy calls call center makes solicitation phone calls for businesses and charities. A profit of $.50 is made for each business call and $.40 for each charity call. It takes 4 min to make a business call and 6 min to make a charity call. If there are 240 min of calling time to be distributed each day, how should that time be spent so that courtesy calls makes a maximum profit.

What is the optimal pruduction policy for number of cusiness calls? and number of charity calls?

What changes, if any, occur in the maimum profit and optimal policy if they must hake at least 12 business and 10 charity calls every day?