Question: Use Johnson's rule to determine the optimal sequencing for the five jobs to be processed on two machines in a fixed order (Machine 1 before
Use Johnson's rule to determine the optimal sequencing for the five jobs to be processed on two machines in a fixed order (Machine 1 before Machine 2). The processing times are given in the table below.
| Job | Machine 1 | Machine 2 |
| C | 10 | 11 |
| D | 8 | 17 |
| E | 14 | 9 |
| F | 13 | 7 |
| G | 10 | 8 |
What is the optimal sequence?
What is the total flow time for this sequence?
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