Question: To find average completion time using Johnson's Rule for a two machine problem, one must O a) add the flow times for all jobs on

To find average completion time using Johnson's Rule for a two machine problem, one must O a) add the flow times for all jobs on machine 1, and divide by the number of jobs. O) ) Add up processing times for all jobs on machine 1, and divide by the number of jobs. Oc) add processing times for all jobs on machine 2, and divide by the number of jobs. d) add processing times for all jobs on machines 1 and 2, and divide by the number of jobs. e) add the flow times for all jobs on machine 2, and divide by the number of jobs

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