Question: Five jobs are waiting for processing through two work centers. Their processing time (in minutes) at each work center is contained in the table below.

  1. Five jobs are waiting for processing through two work centers. Their processing time (in minutes) at each work center is contained in the table below. Each job requires work center Sigma before work center Delta. According to Johnson's rule, what sequence of jobs will minimize the completion time for all jobs? Calculate the total time and idle time (20p.).

Job

Sigma

Delta

R

40

10

S

25

30

T

50

20

U

35

35

V

55

15

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