In a recent survey of local businessmen and businesswomen, 40% of the respondents belong to the Rotary Club, 70% belong to the Chamber of Commerce.30% were members of both.What proportion belong to neither group?
A).12
B).2
C).98
D).4
E).75

Question

Quizplus · Accepted Answer

20% belong to neither group. This is found by subtracting the sum of individual group memberships (40% + 70% = 110%) by the percentage of overlap (30%) and then subtracting from 100% to find those not in either group: 100% - (110% - 30%) = 20%.

In a Recent Survey of Local Businessmen and Businesswomen, 40