Consider a system with 2K pages in their address space assume that page table…

Consider a system with 2K pages in their address space assume that page table is stored in main memory and access time of main memory is 20ns to reduce the overhead a TLB is used which hold 128 entries and the access time of TLB is 5ns, what is the miss rate to TLB to achieve the average access time is 27ns is : ______________