Seven jobs are to be processed through a single machine the


Question: Seven jobs are to be processed through a single machine. The processing times and due dates are given here.

Job                                            1              2              3              4                5               6               7

Processing time                 3              6              8              4                2               1               7

Due Date                           4              8             12             15              11              25             21

Determine the sequence of the jobs in order to minimize

a. Mean flow time.

b. Number of tardy jobs.

c. Maximum lateness.

d. What is the makespan for any sequence?

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Engineering Mathematics: Seven jobs are to be processed through a single machine the
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