In terms of johnson's Rule the optimal sequence is obtained using following rule
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We are given the following data about times at each work center: JOB Work Center 1 2 A 6 12 B 3 7 C 18 9 D 15 14 E 16 8 F 10 5 According to Johnson's Rule: (Source: Wikipedia) List the jobs and their times at each work center. Select the job with the shortest activity time. If that activity time is for the first work center, then schedule the job first. If that activity time is for the second work center then schedule the job last. Break ties arbitratily. Eliminate the shortest job from further consideration. Repeat steps 2 and 3, working towards the center of the job schedule until all jobs have been scheduled. We see that the smallest time is located in Job B (3 hours). Since the time is in work center 1, schedule the job first. Eliminate Job B from further consideration. B - - - - - The next smallest time is located in Job F (5 hours). Since the time is in work center 2, schedule the job last. Eliminate Job F from...