will remain there.
1 is most recently used page, than 7 and than 2 and then 3.
so 3 will get removed, and 0 will get added there. and there will be a page fault because 0 was not present in the page frame. and 1, 7, and 2 will remain there.
the page frame is full, and the next page is 3 which is not there in the page frame. so we need to remove one page from the page frame, so we can add 3 there.
0 is most recently used page, than 1 and than 7 and then 2.
so 2 will get removed, and 3 will get added there. and there 