Q56. The vapour pressure of pure benzene and methyl benzene at $27 ^ { \circ } \mathrm { C }$ is given as 80 Torr and 24 Torr , respectively. The mole fraction of methyl benzene in vapour phase, in equilibrium with an equimolar mixture of those two liquids (ideal solution) at the same temperature is $\_\_\_\_$ $\times 10 ^ { - 2 }$ (nearest integer)