Last year in a group of 30 businesses, 21 reported a net profit and
15 had investments in foreign markets. How many of the businesses
did not report a net profit nor invest in foreign markets last year?
(1) last year 12 of the 30 businesses reported a net profit and had investments in foreign markets.
(2) last year 24 of the 30 businesses reported a net profit or invested in
foreign markets, or both.
Statement 1 - Sufficient.
Net profit group => 12+9=21
Foreign markets => 12+3=15
Neither foreign markets nor net profit =6
Statement 2 - Sufficient.
Provides information about the union of all the groups, except the one that did not have net profit nor had foreign investments.
30-24 = 6
My answer is D.