ASSIGNMENT PROBLEM WITH COST CHANGES he problem is to assign models to machines to satisfy the demand with the least cost # of models produced per hour Model Mach 25 26 18 19 2 Operating cost per hour Model Mach 0,29 0,32 0,35 2 900 800 Demand Each machine is available for 40 hours i. Develop an integer programming model to determine the least cost assignment of models to machines. Let Xi = # of hours machine i works to produce model i. Modify the above model if the operating cost of model A on machine 1 is $0.32 for each hour up to 20 hours and $0.33 for each hour above 20 hours. ii Modify the above model if the operating cost of model A on machine 1 is $0.32 for each hour up to 20 hours, and $0.31 for each hour above 20 hours. iv. Extend the above model if the operating cost of model A on machine 1 is $0.32 for each hour up to 20 hours, $0.31 for each hour between 20 and 36, and $0.30 for each hour above 36. ASSIGNMENT PROBLEM WITH COST CHANGES he problem is to assign models to machines to satisfy the demand with the least cost # of models produced per hour Model Mach 25 26 18 19 2 Operating cost per hour Model Mach 0,29 0,32 0,35 2 900 800 Demand Each machine is available for 40 hours i. Develop an integer programming model to determine the least cost assignment of models to machines. Let Xi = # of hours machine i works to produce model i. Modify the above model if the operating cost of model A on machine 1 is $0.32 for each hour up to 20 hours and $0.33 for each hour above 20 hours. ii Modify the above model if the operating cost of model A on machine 1 is $0.32 for each hour up to 20 hours, and $0.31 for each hour above 20 hours. iv. Extend the above model if the operating cost of model A on machine 1 is $0.32 for each hour up to 20 hours, $0.31 for each hour between 20 and 36, and $0.30 for each hour above 36