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please include a diagram if possible

3. In a computing center there are four types of jobs according to their arrival times (in seconds), their priorities and their run times (in sec- onds): see the table below arrival time 40 50 40 0 0 0 iori run time 2 There are 20 Type 1 jobs, 40 Type 2 jobs, 60 Type 3 jobs and 80 Type 4 jobs. Compute the average turnaround time using the mul- tilevel queues (round robin on every priority level the higher the priority, the sooner they run) scheduling algorithm. Use a quantum that provides short response time.] Subtotal: [15 marks]