Finding of a survey of Systems magazine subscribers: Thirty percent
of all merchandise orders placed by subscribers in response to
advertisements in the magazine last year were placed by subscribers under
age thirty-five.
Finding of a survey of advertisers in Systems magazine: Most of the
merchandise orders placed in response to advertisements in Systems last
year were placed by people under age thirty-five.
For both of the findings to be accurate, which of the following must be
true?
第一句话:对S杂志订阅者的调查显示:去年因为广告宣传而订阅S的所有人中有30%
小于35岁
第二句话:对S杂志广告商的调查显示:去年大部分因为广告宣传而购买S的人都小于
35岁。
如果以上两项均为事实,以下哪个为真?
分析题目:第一句话和第二句话主要有两个差异点:
1、merchandise orders placed by subscriber和merchandise orders:题目带来的
confusion主要来自这两个概念的混淆,subscribe是merchandise orders的子集,而
非同等概念;
2、30%和most
比较之后不难发现,同样的前提“看广告”和“小于35岁”下,有两个结果,大部分
的人都花钱购买了,但其中只有30%的人订阅===>有很多花钱购买的人并没有订阅。
其他选项比较好排除。
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不知道解释的是否清楚,请各位指正。
祝lz取得好成绩~ |