Question: An OS uses Round Robin scheduling policy with time quantum of 3. Four processes P1, P2, P3 and P4 with burst time 10, 13, 6

An OS uses Round Robin scheduling policy with time quantum of 3. Four processes P1, P2, P3 and P4 with burst time 10, 13, 6 and 18 arrive at time 0, 1, 2 and 4 respectively. What is the completion time of process P2?

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