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FormosaMBA 傷心咖啡店 • 檢視主題 - Prep T1-28

Prep T1-28

邏輯思維的訓練,考試戰場上的對決

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Prep T1-28

文章mitori » 2007-08-09 17:27

28. (31510-!-item-!-188;#058&004526)

First-time computer buyers buying PXC home computers typically buy models that cost much less and have a smaller profit margin per computer than do PXC computers bought by people replacing their computers with more powerful models. Last year PXC's profits from computer sales were substantially higher than the previous year, although about the same number of PXC computers were sold and the prices and profit margins for each computer model that PXC sells remained unchanged.

If the statements above are true, which of the following is most strongly supported by them?

(A) PXC's competitors raised the prices on their computers last year, making PXC computers more attractive to first-time computer buyers.
(B) The number of people buying PXC computers who also bought PXC computer-related products, such as printers, was larger last year than the previous year.
(C) Among computer buyers who bought a PXC computer to replace their existing computer, the proportion who were replacing a computer made by a competitor of PXC was greater last year than the previous year.
(D) The proportion of PXC computers bought by first-time computer buyers was smaller last year than the previous year.
(E) PXC's production costs for its computers were lower last year than they had been the previous year.

Ans.D
我選A, 請問D選項的意思不是說第一次購買電腦的比例去年比前年少嗎?
但是題目不是說去年的利潤去年比前年高嗎?
--降不是相反??
mitori
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文章: 47
註冊時間: 2006-01-19 18:28

文章lucyyeh » 2007-08-09 19:36

題目的第一句是比較第一次購買電腦者與買PXC電腦換他們原有電腦的人
利潤比較是整體PXC年度的利潤比較
lucyyeh
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文章: 410
註冊時間: 2007-03-22 12:20

文章pockyqueen » 2007-08-09 21:06

First-time computer buyers buying PXC home computers typically buy models that cost much less and have a smaller profit margin per computer than do PXC computers bought by people replacing their computers with more powerful models. Last year PXC's profits from computer sales were substantially higher than the previous year, although about the same number of PXC computers were sold and the prices and profit margins for each computer model that PXC sells remained unchanged.

由題目可知(紅色字)
第一次買電腦的人通常買便宜而且profit margin不高的電腦
去年賣的電腦數量沒有變, 但是profit卻增加了, best supported by?

D. 第一次買電腦的人比例下降了=>也就是說為了replace電腦而買電腦的人比例增加了=>profit margin 高的電腦數量佔total賣掉的數量增加

so D is the best answer

要注意喔 題目是在比較買PXC的電腦的人和不同電腦的profit margin
A. competitor..與題目議題無關
pockyqueen
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文章: 41
註冊時間: 2007-07-12 23:46

文章mitori » 2007-08-10 17:42

Previous year Last year
First time Replacing First time Replacing
Profit(per computer) $10 $50 $10 $50
Sold number 400 100 100 400
Profits $4000 $5000 $1000 $20000
total $9000 $21000



D. correct; smaller last year than the precious year—100:400

就是這個意思吧--謝謝上面兩位大大的解答
mitori
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文章: 47
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文章evangelinewu » 2007-08-18 19:50

pockyqueen \$m[1]:First-time computer buyers buying PXC home computers typically buy models that cost much less and have a smaller profit margin per computer than do PXC computers bought by people replacing their computers with more powerful models. Last year PXC's profits from computer sales were substantially higher than the previous year, although about the same number of PXC computers were sold and the prices and profit margins for each computer model that PXC sells remained unchanged.

由題目可知(紅色字)
第一次買電腦的人通常買便宜而且profit margin不高的電腦
去年賣的電腦數量沒有變, 但是profit卻增加了, best supported by?

D. 第一次買電腦的人比例下降了=>也就是說為了replace電腦而買電腦的人比例增加了=>profit margin 高的電腦數量佔total賣掉的數量增加

so D is the best answer

要注意喔 題目是在比較買PXC的電腦的人和不同電腦的profit margin
A. competitor..與題目議題無關

請問A選項的後半:
making PXC computers more attractive to first time computer buyers
算不算是weaken呢?
evangelinewu
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文章: 34
註冊時間: 2007-03-24 21:47

文章dibert8 » 2007-08-20 05:35

要找最佳選項.
first time computer buyers 貢獻的利潤低於 people replacing their computers
(D) 說明利潤來自 people replacing their computers 效果比 (A) 強.

從另一觀點, CR 要從和題目最相關的選項切入.題目沒有提到 price (profit margin =/=price), 可以排除 (A).
dibert8
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文章: 2202
註冊時間: 2007-01-08 01:17

文章evangelinewu » 2007-08-23 17:12

dibert8 \$m[1]:要找最佳選項.
first time computer buyers 貢獻的利潤低於 people replacing their computers
(D) 說明利潤來自 people replacing their computers 效果比 (A) 強.

從另一觀點, CR 要從和題目最相關的選項切入.題目沒有提到 price (profit margin =/=price), 可以排除 (A).

謝謝指點~感謝
evangelinewu
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文章: 34
註冊時間: 2007-03-24 21:47

文章zeta1203 » 2007-08-28 21:46

那B選項未何不行 (B) The number of people buying PXC computers who also bought PXC computer-related products, such as printers, was larger last year than the previous year.他的PROFIT增加是因為周邊商品,不是因為電腦本身...不也符合題目嗎
zeta1203
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文章: 122
註冊時間: 2005-07-27 19:38

文章dibert8 » 2007-08-29 00:29

"周邊商品"已經超過題目的範圍.
dibert8
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文章zeta1203 » 2007-08-29 23:09

超過題目範圍.....真的很難判定! 因為很多題答案都是原題沒有出現的耶!只有知道正解才能推回....超過範圍
zeta1203
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文章: 122
註冊時間: 2005-07-27 19:38

文章howard130575 » 2007-08-30 10:26

選B有可能support 但也有可能無法support 注意題目是要我們選most strongly supported

所謂的超過題目範圍就是說
原文完全沒提到PXC computer-related products的收益情形
搞不好 這些東西 根本是賣一個賠一個
當然也有可能是賺 但是原文沒有講 我們無法去推測這部分的東西

只好選比較好的D
howard130575
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文章: 48
註冊時間: 2006-06-11 17:08

文章chris8888 » 2008-01-11 09:30

First-time computer buyers buying PXC home computers typically buy models that cost much less and have a smaller profit margin per computer than do PXC computers bought by people replacing their computers with more powerful models. Last year PXC's profits from computer sales were substantially higher than the previous year, although about the same number of PXC computers were sold and the prices and profit margins for each computer model that PXC sells remained unchanged.

根據文章, 有兩種顧客
1. 第一次購買者, 讓公司賺少少錢
2. 換機潮, 會選購效能強大的電腦, imply公司賺較多錢
狀況 : 賣出的電腦PCX數量一樣多

(D) The proportion of PXC computers bought by first-time computer buyers was smaller last year than the previous year.
假設總共賣出100台, 第一次購買者所買的電腦變少了, 從70 -> 20
假設第一次購買者會讓公司賺10元
假設換機潮會公司賺50元
70 * 10 + 30 * 50 = 2200元
20 * 10 + 80 * 50 = 4200元 <== although about the same number of PXC computers were sold 這句很重要, 意思是說賣出的總電腦數一樣, 當第一次購電腦的人數下降, 理所當然的換機人數必然上升, 總和不變.
因此可以解釋為什麼賣出的電腦數量相同卻可以賺更多錢.

邏輯往往就是在考
1. 資料分布的特性
2. 以偏概全
3. 前提假設
4. 推理結論
5. 尋求支持
6. 尋求推翻等
頭像
chris8888
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文章: 444
註冊時間: 2007-07-31 22:47

文章edas9101 » 2008-07-18 19:42

發錯文 自Delete
edas9101
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文章: 54
註冊時間: 2007-10-03 20:44

文章resource52571uc » 2008-07-20 14:16

(E) PXC's production costs for its computers were lower last year than they had been the previous year.
請問一下E選項說明成本下降,不就可以解釋利潤上升嗎?
請大家指導一下 THX
resource52571uc
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文章: 10
註冊時間: 2008-02-29 23:46

文章resource52571uc » 2008-07-20 14:17

(E) PXC's production costs for its computers were lower last year than they had been the previous year.
請問一下E選項說明成本下降,不就可以解釋利潤上升嗎?
請大家指導一下 THX
resource52571uc
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文章: 10
註冊時間: 2008-02-29 23:46

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