Question: 3 tasks A , B , and C arrive in the system at t = 0 s in this specific order ( A first, B

3 tasks A, B, and C arrive in the system at t=0s in this specific order (A first, B next, C last). They have service times 9s,6s,3s respectively for A,B,C.a. What is the average waiting time under FCFS for A,B,C ? b. What is the average waiting time under RoundRobin with quantum=3s ? c. What is the wait time W(A) for task A under SPN ? d. What is the wait time W(C) for task C under SPN ?

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