Consider the set of processes with arrival time (in milliseconds). CPU burst time (in milliseconds) and priority (0 is the highest priority) shown below. None of the processes have I/O burst time. Process Arrival Time Burst Time Priority P1 0 11 2 P2 5 28 0 P3 12 2 3 P4 2 10 1 P5 9 164 The average waiting time (in milliseconds) of all the processes using preemptive priority scheduling algorithm is ________.

Consider the set of processes with arrival time (in milliseconds). CPU

1.	Consider the set of processes with arrival time (in milliseconds). CPU burst time (in milliseconds) and priority (0 is the highest priority) shown below. None of the processes have I/O burst time. Process Arrival Time Burst Time Priority P1 0 11 2 P2 5 28 0 P3 12 2 3 P4 2 10 1 P5 9 164 The average waiting time (in milliseconds) of all the processes using preemptive priority scheduling algorithm is ________.
A.	9 ms
B.	11 ms
C.	19 ms
D.	29 ms
Answer» E.

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