Consider the following five processes with the length of the CPU burst time given in milliseconds together with their arrival time and priority.
| Process | Arrival Time | Burst time | Priority |
|---|---|---|---|
| P1 | 0 | 10 | 4 |
| P2 | 0 | 3 | 1 |
| P3 | 3 | 8 | 2 |
| P4 | 4 | 16 | 3 |
| P5 | 7 | 2 | 5 |
In priority preemptive scheduling the average waiting time will be (Assume lowest number schedule has highest priority)
1
13.8 ms
2
11.5 ms
3
16.5 ms
4
12.8 ms