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5.18 The following processes are being scheduled using a preemptive, priority-based, round-robin scheduling algorithm. Process P₁ P2 P3 PA 4 P5 P6 Priority 8 3 44544 Burst 15 20 20 20 5 15 a. Show the scheduling order of the processes using a Gantt chart. b. What is the turnaround time for each process? c. What is the waiting time for each process? Arrival 0 0 2545 20 Each process is assigned a numerical priority, with a higher number indicating a higher relative priority. The scheduler will execute the highest-priority process. For processes with the same priority, a round-robin scheduler will be used with a time quantum of 10 units. If a process is preempted by a higher-priority process, the preempted process is placed at the end of the queue.