gwd-25-32

cournot

Q32.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) ALONE is sufficient, but statement (2) alone is not sufficient

l        Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient

l        BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.

l        EACH statement ALONE is sufficient

l        Statements (1) and (2) TOGETHER are NOT sufficient

答案b,我觉得d,条件1既然知道12=b&i,就知道答案=30-（21+3）=6

yaoyao99

I agree with D.  P(profit) = 21, P(investment) = 15, P(no profit and no investment) = 30 - P(profit) - P(investment) + P(profit and investment)