Answer: 200 nanoseconds
Explanation:
If a memory reference is taking 100 nanoseconds
Then, a paged memory references take two memory access which are getting the number of frame from the memory for page number and followed by this accessing of the data/information.
Thus, the time taken by the paged memory reference is
Time= 2[tex]\times[/tex]100 nanoseconds
Time=200 nanoseconds