.We want to compare the performance of a single threaded disk server with a mu

.We want to compare the performance of a single threaded
disk server with a multithreaded 1.
Suppose the server takes 25 ms to receive a request for
work from client, dispatch the request for processing and
actual data request processing when reqd.
Data is in main memory.
If the reqd. Data is not in the main memory a real disk
operation is needed and an additional 75 ms are reqd. On the
average.
On the average 25% of the clients requests access the disk.
During the disk I/O period the thread waits. Assume that
there is no other process in system when the server is
running.
How many requests can the server handle per second if its
a)single threaded b)multithreaded

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