标题: 求逻辑解题思路 ！！ [打印本页] 作者: 夏子之酒 时间: 2011-11-27 11:49 标题: 求逻辑解题思路 ！！ Finding of a survey of Systems magazinesubscribers: Thirty percent of allmerchandise orders placed by subscribers in response to advertisements in themagazine last year were placed by subscribers under age thirty-five.
Finding of a survey of advertisers in Systemsmagazine: Most of the merchandise ordersplaced in response to advertisements in Systems last year were placed by peopleunder age thirty-five.
For both of the findings to be accurate, which ofthe following must be true?
(A) More subscribers to Systems who have neverordered merchandise in response to advertisements in the magazine are agethirty-five or over than are under age thirty-five. (B) Among subscribers to Systems, the proportionwho are under age thirty-five was considerably lower last year than it is now. (C) Most merchandise orders placed in response toadvertisements in Systems last year were placed by Systems subscribers over agethirty-five. (D) Last year, the average dollar amount ofmerchandise orders placed was less for subscribers under age thirty-five thanfor those age thirty-five or over. (E) Lastyear many people who placed orders for merchandise in response toadvertisements in Systems were not subscribers to the magazine.作者: gonghao 时间: 2011-11-27 22:47
文字游戏 范围问题 1. 由Subscriber订阅的S杂志中30%是由35岁以下的人订阅的，他们 2. 大部分因为广告的买S杂志的人中，35岁以下的是most