JEE Main 2021 Chemistry question

At 20°C, the vapour pressure of benzene is 70 torr and that of methyl benzene is 20 torr. The mole fraction of benzene in the vapour phase at 20°C above an equimolar mixture of benzene and methyl benzene is . (Nearest integer)

• (A)78Correct
• (B)50
• (C)70
• (D)22