Using johnson's for 2 machine scheduling, the sequence is
Scheduled Order....................Job
1.............................C
2...........................B
3...........................E
4..........................A
5.........................D
6........................F
For the schedule developed using Johnson's rule, the total length of time taken to complete the six jobs (including the 2nd operation) = hours (enter response as a whole number).
Six jobs are to be processed through a two-step operation. The first operation involves sanding, and the second involves painting Processing times are as follows:

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Operation 1 (hours) Operation 2 (hours) Job 12 11 14 6. 9. 10 1