Consider the following set of processes that arrive at time 0, with the length of the CPU burst (burst time) given in milliseconds:

Process Burst Time P1 24

P2 3

P3 3

If the processes arrive in the order P1, P2, P3, and are served in First-Come-First-Served scheduling order, what is the average turnaround time (in milliseconds)?

(Note: The turnaround time measures how long the average user has to wait for the output.)

(Hint: If process X is scheduled before process Y, then Y needs to wait until X is completed.)

24

10

27

13