The owner/operator of the local franchise of Handyman,Inc.,has four jobs to do today,shown in the order they were received: If he uses the shortest processing time first (SPT)priority rule to schedule these jobs,what will be the average WIP in his shop today?
A)0 jobs
B)1 job
C)2 jobs
D)3 jobs
E)4 jobs

Question

The owner/operator of the local franchise of Handyman,Inc.,has four jobs to do today,shown in the order they were received:  If he uses the shortest processing time first (SPT)priority rule to schedule these jobs,what will be the average WIP in his shop today?
A)0 jobs 
B)1 job 
C)2 jobs 
D)3 jobs 
E)4 jobs

Quizplus · Accepted Answer

Using the SPT rule, the jobs should be processed in the following order: 
Job 3 (2 hours)
Job 1 (3 hours)
Job 2 (4 hours)
Job 4 (5 hours)

The average WIP will be (0+1+2+3)/4 = 1.5, which is closest to option C, 2 jobs.

The Owner/operator of the Local Franchise of Handyman,Inc