GMAT考试

根据网考网考试中心的统计分析，以下试题在2019/1/17日GMAT考试习题练习中，答错率较高，为：35%
【单选题】Two hundred multiples of seven are chosen at random, and 300 multiples of eight are chosen at random.Approximately what percentage of the 500 selected numbers are odd

A、20%
B、25%
C、40%
D、5O%
E、80%

网考网参考答案：A，答错率：35%
网考网试题解析：
All multiples of 8 are even, and half of the multiples of 7 are odd; the multiples of 7 make up 2/5 of the total, so if 1/2 of those multiples of 7 are odd, then 1/5 of the total will be odd, or 20%. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>