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These Jobs need to be scheduled on one machine: Job 1 2 3 4 5 6 7 8 9 Processing time in minutes 200 260

These Jobs need to be scheduled on one machine:

Job	1	2	3	4	5	6	7	8	9
Processing time in minutes	200	260	420	180	300	160	90	130	210

a. Process the jobs in their numerical order. Determine the average flow time in hours after each job is completed.

b. Determine the order the jobs would be processed using the SPT rule. Determine the flow time using SPT.

c. Compare your answer with the one you had for problem 2a, then suggest what the better approach is. Explain your answer.

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