Two compounds A \& B form ideal solution. If mole fraction of A in vapour is 0.8 Calculate $\mathbf { m o l }$ fraction of A in liquid ( $\mathrm { P } _ { \mathrm { A } } ^ { 0 } = 55$ torr, $\mathrm { P } _ { \mathrm { B } } ^ { 0 } = 15$ torr)\\
(A) 0.4\\
(B) 0.52\\
(C) 0.6\\
(D) 0.7