Last year in a group of 30 businesses,21reported a net profit and 15 had investment in a foreign market,How many of the businesses did not report a net 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 24of the 30 businesses reported a net profit or invested in foreign markets,or both.
选项类似，答案是第二个成立，第一个不成立。
