Question: Problem 7-1 (Johnson' algorithm). We have 5 jobs to be processed and 2 machines as servers. Each job must be processed at machine 1 first

Problem 7-1 (Johnson' algorithm). We have 5 jobs to be processed

Problem 7-1 (Johnson' algorithm). We have 5 jobs to be processed and 2 machines as servers. Each job must be processed at machine 1 first and then machine 2 later. The following table shows each job's processing time at Machine 1 and Machine 2. Apply the Johnson's algorithm to find the optimal sequence minimizing the makespan. What is the makespan

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