Aliquid mixture containing 30.0 mole% benzene (b), 25.0 mole% toluene (t), and the balance xylene (x) is fed to a distillation column. the bottoms product contains 98.0 mole% x and no b; 96.0 mole% of the x in the feed is recovered in this stream. the overhead product is fed to a second column. the overhead product from the second column contains 97.0 mole% of the b in the feed to this column. the composition of this stream is 94.0 mole% b and the balance t.

calculate

(i) the percentage of the benzene in the process feed that emerges in the overhead product from the second column and

(ii) the percentage of toluene in the process feed that emerges in the bottom product from the second column.