To manufacture an automobile requires painting and polishing Epsilon Motor Company produces three types of cars, the Delta Beta and the Sigma Each Delta 7 hours painting 2 hours for drying, and hours for polishing A requires 13 hours for paintinghours for drying and 5 hours for polishing and a Sigma requires 9 hours for painting1 hour for drying, and 2 hours for polishing the company has 308 hours for painting 67 hours for drying and 107 hours for polishing per month how many of each type of car are produced?