Whenever a course of action requests memory, the functioning system allocates one or more site frames to the method and maps the procedure’s reasonable internet pages for the Actual physical web page frames. P R = V two × I = V R R + R C × V R + R C = R R + R C × V two R + R C = R R + R C P V displaystyle P_ R =V_ 2 instances I=V frac R R+R