[求助]一道把我绕死的PREP逻辑

jessie1228

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?

 

(A) More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five.

(B) Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now.

(C) Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five.

(D) Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over.

(E) Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine.-------答案

谁能翻译下解释下啊~~~~~~

牛牛~~~~~~~~~HELP ME~~

wenping0530

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. (30%的订单是来自35岁以下的杂志subscriber)

 

 

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. (多数的订单来自35岁以下的人）

 

 

For both of the findings to be accurate, which of the following must be true?

 

 

(A) More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five. (这个最多是猜测，无从考量）

(B) Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now. （not related to the argument)

(C) Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five. （not true)

(D) Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over. （so what!? not helping us at all)

(E) Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine (我不太会解释，但是如果仔细读懂题目的话，就很轻松的发现这就是答案）

jessie1228

以下是引用wenping0530在2009/9/22 22:26:00的发言：

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. (30%的订单是来自35岁以下的杂志subscriber)

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. (多数的订单来自35岁以下的人）

For both of the findings to be accurate, which of the following must be true?

(A) More subscribers to Systems who have never ordered merchandise in response to advertisements in the magazine are age thirty-five or over than are under age thirty-five. (这个最多是猜测，无从考量）

(B) Among subscribers to Systems, the proportion who are under age thirty-five was considerably lower last year than it is now. （not related to the argument)

(C) Most merchandise orders placed in response to advertisements in Systems last year were placed by Systems subscribers over age thirty-five. （not true)

(D) Last year, the average dollar amount of merchandise orders placed was less for subscribers under age thirty-five than for those age thirty-five or over. （so what!? not helping us at all)

(E) Last year many people who placed orders for merchandise in response to advertisements in Systems were not subscribers to the magazine (我不太会解释，但是如果仔细读懂题目的话，就很轻松的发现这就是答案）

谢谢啊非常感谢~~~`

是不是就是说 大多数定单是35岁以下的人定的,但是定杂志的只有30%是35岁以下的,所以有很多的人木有定杂志....

这个真的很绕绕绕绕绕啊....

amumu

是说大多数定了杂志看广告然后下订单的人是35岁以下的，占了总订单数的30%。

所以，大多数下单的人没有定杂志。

gracezz

这题太绕了：
我觉得crack point在这：
Finding of a survey of Systems magazine subscribers-关于S杂志读者的调查-发现读者中回应广告去订货的人中有30%是35以下
Finding of a survey of advertisers in Systems magazine-关于S杂志广告商的调查-发现回应广告in response to advertisements来订货的人大部份是35以下。
这说明广告商那35以下的人多，那多出来那部分人就不是subscribers,而可能只是看了，但是没订杂志。

rainbowmanutd

。。同意2L。。另建议lz把答案单独写。。不要放在题目里，这样没法分析拉！

小伊YSY

嗷,我之前也被这题绕得很晕

立小夏

刚做完这题 起初确实比较晕。。。。。

agnesliu

第一遍看这题的时候，我还真没分清楚两句的差别。多看几遍才绕回来

vivianxiong

似乎明白鸟。。。