A group consists of equal no of men and women .of this grp 20% of men and 50% of women are unemployed .If a person is selected at random from this group ,the probability of the selected person being employed is ____________

For this I did

P(E)=P(M∩ E) +P(W∩ E) where U and E are for employed and unemployed ,Now P(M)=P(W)=1/2