Question: Five tasks A, B, C, D and E whose execution time are 15 minutes, 20 minutes, 20 minutes, 5 minutes and 10 minutes, arrive at

Five tasks A, B, C, D and E whose execution time are 15 minutes, 20 minutes, 20 minutes, 5 minutes and 10 minutes, arrive at 8:00, 8:10, 8:25, 8:35 and 8:40 respectively. The first scheduling time is 8:30. Please calculate the turn around time when exploiting FCFS (First Come First Serve), SJF (Shortest Job First), round-robin (time slice = 5 minutes) respectively.

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