Answer
See the answer below.
Work Step by Step
The mole fraction of toluene in solution: $1.0/(1.0+2.0)=0.33$
The mole fraction of benzene in solution: $1-0.33=0.67$
Total pressure: $P=P_A^0X_A+P_B^0X_B=22\times0.33+75\times0.67=57.51\ mmHg$
The mole fraction of toluene in vapor: $22\times0.33/57.51=0.13$
The mole fraction of benzene in vapor: $1-0.13=0.87$
