EXAMPLE-1: (Johnson's Rule) Johnson's Fine Restoration has received a rush order to refinish five carousel animals - a) An Alligator, b) A Bear, c) A Cat, d) A Deer, and e) An Elephant. Mr. Johnson Takes care of sanding; his son does the painting (painting process can start after sanding process is completed for the job). The time required for each refinishing process differs by the state of the animal and the degree of detail for each animal. Given the following process times (in hours): 1. 2. 3. Job A Sanding 6 Painting 8 B 11 6 C 7 3 D 9 7 E 5 10 Determine the order in which the jobs should be processed so that the rush orders can be completed as soon as possible. What must be the minimum lead-time needed to complete the rush order? (i.e., what is the make-span?) During this lead-time, how much idle time can Mr. Johnson, Sr. (father) enjoy? (i.e., what is the idle time for process-1?) During the same lead-time, how much idle time can Mr. Johnson, Jr. (son) enjoy? (i.e., what is the idle time for process-2?)