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标题: PREP模考数学一道有点奇怪的题目 [打印本页]
作者: Warzdgesord 时间: 2019-9-5 20:41
标题: PREP模考数学一道有点奇怪的题目
At least 100 students at a certain high school study Japanese. If 4 percent of the students at the school who study French also study Japanese, do more students at the school study French than Japanese?
(1) 16 students at the school study both French and Japanese.
(2) 10 percent of the students at the school who study Japanese also study French.
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Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
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EACH statement ALONE is sufficient.
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Statements (1) and (2) TOGETHER are NOT sufficient.
这题楼主给出的答案是E,理由是题目没有说这个学校里面所有学生都至少学一门法语或者日语
PREP的答案是B
2能得到的信息就是学日语的学生占全校学生比例的40%
请各路大神帮忙解答一下~
作者: 核桃英雄 时间: 2019-9-5 20:46
条件2的意思是学日语里面有10%也学法语。题目里面有个条件是学法语里面有4%也学日语。就是同一个重复部分占法语的4%,占日语的10%。肯定法语的多。
作者: Warzdgesord 时间: 2019-9-5 21:04
明白了!
又是一道没把题目看明白的坑,感谢大神~
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