ChaseDream

标题: GMAT-11-11请教求解思路 [打印本页]

作者: sv2000 时间: 2005-11-11 13:58
标题: GMAT-11-11请教求解思路

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?

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.

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

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

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.

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

作者: yangsh 时间: 2005-11-11 16:44
e

作者: carolhide 时间: 2005-12-11 17:34

我的答案是A

对此题不甚理解，有人能解释下么？

作者: howardwang 时间: 2005-12-12 14:47

应该是E

第一个说订阅者中的赞助者中30%是35以下的。

第二个说，大于50%的所有订阅的人都是35岁以下的。

如果订阅者全部是赞助者，则以上两种说法矛盾。

顾选E.有些订阅者必不是赞助者。

这题真绕。

作者: chamcham 时间: 2007-6-27 11:19
thx, clear now

欢迎光临 ChaseDream (https://forum.chasedream.com/)