Processes with the length of CPU burst given in milliseconds

Process	Burst Time (ms)	Priority	Arrival time (ms)
P1	10	3	0
P2	2	1	1
P3	4	3	2
P4	1	4	3
P5	6	2	4

1.What is the average waiting time if RR (quantum = 1) algorithm is used? Ignore the arrival delay.

2.What is the average waiting time if RR (quantum = 2) algorithm is used? Ignore the arrival delay.

3.What is the average waiting time if processes arrive in the reverse order (P5, P4, ... , P1) and RR (quantum = 2) algorithm is used? Ignore the arrival delay.

4.What is the average waiting time if RR (quantum = 4) algorithm is used? Ignore the arrival delay.

5.What is the average waiting time if processes arrive in the reverse order (P5, P4, ... , P1) and RR (quantum = 4) algorithm is used? Ignore the arrival delay.