Jack's Ice Cream Parlor produces two types of ice cream on a contract basis for a major restaurant chain using a large blender. A batch of ice cream A requires a setup time of 45 minutes, a process mixing time of 1.2 minutes per gallon, and 50 gallons are made per day. Ice cream B requires the same machine to be cleaned and setup which takes 30 minutes, a process mixing time of 2 minutes per gallon, and 100 gallons produced per day.