The page size is 4B, the logical memory is 32B (8 pages).

the logical address  0, s0 0/4=0,0%4=0,so the page table number is 0,page number 0 corresponds to frame 5, so the logical address is mapped to the physical address 5*4+0=20.

Logical address 3,3/4=0,3%4=3(偏移量),so the page table number is 0,page number 0 corresponds to frame 5,s0 the maps physical address 5*4+3=23.

Logical address 13，13/4=3,13%4=1,so the page table number is 3,page number 0 corresponds to frame 2,so the mapped to physical address 2*4+1=9.