(Solved): 5.18 The following processes are being scheduled using a preemptive, priority-based, round-robin s ...

5.18 The following processes are being scheduled using a preemptive, priority-based, round-robin scheduling algorithm. Process P? P? P3 PA P5 Po Priority 8 3 4 4 5 5 Burst 15 20 20 20 5 15 Arrival 0 0 20 25 45 55 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. 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?