Re: [問題] 再問兩題PP的CR

看板GMAT (GMAT入學考試)作者KOBEII (#81)時間16年前 (2008/09/05 20:51)推噓1(1推 0噓 0→)

留言1則, 1人參與討論串2/3 (看更多)

※ 引述《paradox1104 (一天我都不想等)》之銘言： : Test1-12. (25359-!-item-!-188;#058&001894) : 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. : 這題有人可以幫我解釋一下句意嗎繞來繞去最後答案給e 感覺好像是比例問題.... : 我閱讀不好所以看得頭昏眼花...... 第一段：來自訂閱戶訂單中，有30%的訂單來自35歲以下的訂閱戶第二段：來自所有客戶的訂單中，大部分的訂單來自35歲以下的客戶所以可以得知，大部分的訂單來自非訂閱戶，不然第二段應該會接近30%，而不是most 湊四行 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.4.234