GRE考试

根据网考网考试中心的统计分析，以下试题在2019/9/18日GRE考试习题练习中，答错率较高，为：52%
【单选题】On a certain French-American committee,
of the members are men, a and
of the men areAmericans. If
of the committee members are French, what fraction of the members areAmerican women


网考网参考答案：A，答错率：52%
网考网试题解析：
Use TACTIC 3. The LCM of all the denominators is 120, so assume that the committee has 120 members. Then there are[*]men and 40 women. Of the 80 men[*]are American. Since there are[*]French members, there are 120 - 72 = 48 Americans, of whom 30 are men, so the other 18 are women. Flnally, the fraction of American women is[*] This is illustrated in the Venn diagram below. [*] document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>