Given three processes A, B, and C with corresponding burst times 20, 5, and 2, what is the average waiting time with a first come first served (FCFS) scheduler? All processes are ready to run at the same time but they arrived in the order A, B, then C.
A. 3
B. 15
C. 9
D. 25
Answer:B
Given three processes A, B, and C with corresponding burst times 20, 5, and 2, what is the average waiting time with a first come first served (FCFS) scheduler? All processes are ready to run at the same time but they arrived in the order A, B, then C.
A. 3 B. 15 C. 9 D. 25