A man and his wife appear in an interview for two vacancies in the same post. The probability of husband’s selection is (1/7) and the probability of wife’s selection is (1/5). What is the probability that only one of them is selected?	Choose the correct choice from the following choices
A) 1/7
B) 2/7
C) 3/7
D) 4/7
E) 5/7
P(A)=1/7   P(2/7)=1/5   P(A’)=6/7   P(2/7’)4/5   Required probability= P((A and 2/7’) or ( 2/7 and A’))   =(1/7x4/5)+(1/5x6/7)   =2/7   ANSWER 2/7 2/7
<result>B</result>
A man and his wife appear in an interview for two vacancies in the same post. The probability of husband’s selection is (1/7) and the probability of wife’s selection is (1/5). What is the probability that only one of them is selected?