AP Thermo Cycle Problem

The solution on the solution set is for the original values which somehow got garbled in the editing when I moved the figure . The original values were 200 kPa at A and B 20 kPa at C; 40 m3 at A 80 m3 at B and C. Now the cycle makes a bit more sense with the temperature at A being 962 K, and n being 1000 moles.