On a system using round-robin scheduling let ‘s’ represent the time needed to perform a process switch, ‘q’ represents the round-robin time quantum, and ‘r’ represents the average time a process runs before blocking on I/O. The CPU efficiency when s = q < r is:(A) r/(r+s)(B) q/(q+s)(C) 1/2(D) 0

On a system using round-robin scheduling let ‘s’ represent the tim

1.	On a system using round-robin scheduling let ‘s’ represent the time needed to perform a process switch, ‘q’ represents the round-robin time quantum, and ‘r’ represents the average time a process runs before blocking on I/O. The CPU efficiency when s = q < r is:(A) r/(r+s)(B) q/(q+s)(C) 1/2(D) 0
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