********please solve them all, I need a direct answer only******

*******please solve them all , i need a direct answer only*********

2. Consider a ready queue with four processes :- Process Arrival Time Burst Time (ms) A 0 10 B 2 3 4 8 D 7 6 E 10 1 F 17 4 Priority 2 1 3 3 4 2 Determine the average waiting time for a pre-emptive priority and round robin system with time quantum is 3ms 3. Consider a ready queue with four processes :- Process Arrival Time Burst Time (ms) P1 0 8 P2 0 6 P3 0 1 P4 0 9 P5 0 3 Priority 4 1 2 2 3 For each of the following CPU scheduling algorithms, determine the turnaround and average waiting time for each of the process :- a. First come first serve b. Shortest Job First C. Priority Scheduling (Both pre-emptive and non-preemptive) d. Round Robin (quantum is 2 ms) 4. Consider a ready queue with four processes :- Process Arrival Time Burst Time (ms) P1 0 8 P2 2 6 P3 2 1 P4 1 9 P5 3 3 Priority 4 1 2 2 3 For each of the following CPU scheduling algorithms, determine the turnaround and average waiting time for each of the process :- a. Shortest remaining Time First b. Shortest Job First C. Priority Scheduling (Both pre-emptive and non-preemptive) d. Round Robin (quantum is 1 ms)