【每日逻辑链练习贴】【逻辑1-10】

fox0923

逻辑汇总贴：http://forum.chasedream.com/GMAT_CR/thread-580862-1-1.html
阅读姊妹篇：http://forum.chasedream.com/GMAT_RC/thread-562296-1-1.html

feifei95.

1.   Scientific research that involves international collaboration hasproduced papers of greater influence, as measured by the number of times apaper is cited in subsequent papers, than has research without anycollaboration. Papers that result from international collaboration are cited anaverage of seven times, whereas papers with single authors are cited only threetimes on average. This difference shows that research projects conducted byinternational research teams are of greater importance than those conducted bysingle researchers.

Which one of the following is an assumption on which the argument depends?
K.W:
The number of citations a paper receives is a measure of the importanceof the research it reports

feifei96.

2.   Prominent business executives often play active roles in UnitedStates presidential campaigns as fundraisers or backroom strategists, but fewactually seek to become president themselves. Throughout history the greatmajority of those who have sought to become president have been lawyers,military leaders, or full-time politicians. This is understandable, for thepersonality and skills that make for success in business do not make forsuccess in politics. Business is largely hierarchical, whereas politics iscoordinative. As a result, business executives tend to be uncomfortable withcompromises and power-sharing, which are inherent in politics.

Which one of the following, if true, most seriously weakens the proposedexplanation of why business executives do not run for president?
K.W:
Military leaders are generally no more comfortable with compromises andpower-sharing than are business executives.



feifei107.

3.   Because of the recent transformation of the market, Quore, Inc.,must increase the next two years, or it will certainly go bankrupt. In fact,however, Quore’s production structure is such that if a 10 percent productivityincrease is possible, then a 20 percent increase is attainable.

If the statements above are true, which one of the following must on the basisof them also be true?

K.W: If a 20 percent productivity increase is unattainable for Quore,then it must go bankrupt.
feifei49.

4.   Joseph: My encyclopedia says that the mathematician Pierre de Fermatdied in 1665 without leaving behind any written proof for a theorem that heclaimed nonetheless to have proved. Probably this alleged theorem simply cannotbe proved, since---as the article points out---no one else has been able toprove it. Therefore it is likely that Fermat was either lying or else mistakenwhen he made his claim.
Laura: Your encyclopedia is out of date. Recently someone has in fact provedFermat’s theorem. And since the theorem is provable, your claim---that Fermatwas lying or mistaken---clearly is wrong.

Joseph’s statement that “this alleged theorem simply cannot be proved” playswhich one of the following roles in his argument?
K.W: a subsidiary conclusion on which his argument’s main conclusionis based



AI-------
The following appeared as part of the businessplan of the Capital Idea investment firm.
“Across town in the Park Hilldistrict, the Thespian Theater, Pizzazz Pizza, and the Niblick Golf Club haveall had business increases within the past two years. Capital Idea shouldtherefore invest in the Roxy Playhouse, the Slice-o’-Pizza, and the Divot GolfClub, three new businesses in the Irongate district. As a condition, we shouldrequire them to participate in a special program: Any customer who patronizestwo of the businesses will receive a substantial discount at the third. Bymotivating customers to patronize all three, we will thus contribute to theprofitability of each and maximize our return.”

superbat28

1. 45s昨天的题哈~一看你就没做作业昨天·~哈哈哈
Conclusion: International collaboration paper are more important
Premise: International paper are cited more frequently

Assumption: Important= Being cited frequently

2. 1min T T
Conclusion: The reason why business executive do not run campaign is that the skills are different, business executive cannot tolerate power sharing.
Premise: Observation……

Weaken: 1. Other reason2. Business also shares power….
但是答案那个~呃~要是出现还是蛮好识别的- -

3. 25s
Info1: market changes, Q should increase or will go bankruptcy
Info2: In Q, if a 10% increase is attainable, a 20% is also attainable.

Inference: Q will not go bankruptcy…….求指点啊！！！！~~~~~~

4. 1min T T
Premise: since………………………
Subsidiary Conclusion: The asked one………………..
Conclusion: P must be lying…..

superbat28

AA:
1. We do not know by what source the three companies in Hill District increase their profits. Maybe they did not enlarge their sales by some discount, but focus on minimizing costs.
2. Our district may not be the same to the H district. The incentive program may not have any effect in our district.
3. It cannot be said that all 3 companies' profits will increase: Maybe patron for a the golf club is very expensive, people all tend to patron the other two to get discount for the Golf Club. Thus, golf club will inevitably lose money~~

fox0923

哑哑~~被逮着了，赶紧补~~

daisyの小夢想

完成过昨天作业的好孩子看到第一题暗爽~~哈哈

2. 47s
Phenomenon: Sucessful businessperson seldom runs for predident election.
Premise: Businessperson are more addaptive to hierarchy rather than cooperation, which is essential for politics.
Conclusion:
Businessperson tends to be annoyed by powersharing and cooperation.
Weaken:
Those who are successful in business usually pay great attention to cooperation among employees.

3. 43s
Q has transfromed. Inc. must transform too, otherwise, it would go bankrupt.
In Q, when 10% productivity increase is possible, it will attain 20% atual increase.
Must Be True:...

4. 1:15
J: The Math expert claimed that his hythosize can be proved. But since no one has proved it, he must have lied.
L: Someone has proved the math problem. Therefore, the expert was not lying.

5. 1:26
1. False Analogy
2. 措施可行性
3. fallaciously build up a correlation among the three business. 可能有他因造成三家店营利的上升。

daisyの小夢想

3.   Because of the recent transformation of the market, Quore, Inc.,must increase the next two years, or it will certainly go bankrupt. In fact,however, Quore’s production structure is such that if a 10 percent productivity increase is possible, then a 20 percent increase is attainable.

If the statements above are true, which one of the following must on the basisof them also be true?

K.W: If a 20 percent productivity increase is unattainable for Quore,then it must go bankrupt.

第三题 晕了。。 if a 10 percent productivity increase is possible 这是前提才会有20% attainable啊，但选项说它没有20%attainable就要倒闭了。那如果低于10%的productivity is possible呢？？那当然不会有20%attainable啊，那还要倒闭吗。。

fox0923

2. 45s
P: The politicians require coordination, the business requires hierarchy.
C: The business executives can be politicians if they are not inherent w/the hierarchical power of business.
Weaken: A good business executive has to be good a coordination as well.

3. 40s
P: The increase of production of Q can prevent bankruptcy.
P: If the production is increased 10%, then the attainable increase will be 20%
Infer: Q will not be bankrupt if its production is increased.

4. 32s
P: F' theory is proved, but J argued that F's theory is wrong because he's lying.
C: L contended that F's theory is true by against F's point.
Role: evidence to support J's argument.

fox0923

3.   Because of the recent transformation of the market, Quore, Inc.,must increase the next two years, or it will certainly go bankrupt. In fact,however, Quore’s production structure is such that if a 10 percent productivity increase is possible, then a 20 percent increase is attainable.

If the statements above are true, which one of the following must on the basisof them also be true?

K.W: If a 20 percent productivity increase is unattainable for Quore,then it must go bankrupt.

第三题 晕了。。 if a 10 percent productivity increase is possible 这是前提才会有20% attainable啊，但选项说它没有20%attainable就要倒闭了。那如果低于10%的productivity is possible呢？？那当然不会有20%attainable啊，那还要倒闭吗。。

-- by 会员 daisyの小夢想 (2011/8/17 7:31:27)

这道题我觉得意思是说
Q必须要increase production---->才能避免倒闭
所以如果Q可以增加10% production----〉那么Q的attainable production会增加20%
于是答案是“ If a 20 percent productivity increase is unattainable for Quore,then it must go bankrupt. ”
依据答案的话，好像答案并没有把20%作为一个非常重要的因素，这里的20%是在描述production增加以后所带来的结果。所以只是用这个结果来推出非B---〉非A

找到的解释如下：
可简化题干的表述为：
transformation of the market（A）→Q increase its production（B）
Q not increase its production（非B）→Q will go bankrupt（C）

选项E的表述为：Q not increase production（非B）→Q will go bankrupt（C），与一致。

daisyの小夢想

这道题我觉得意思是说
Q必须要increase production---->才能避免倒闭
所以如果Q可以增加10% production----〉那么Q的attainable production会增加20%
于是答案是“ If a 20 percent productivity increase is unattainable for Quore,then it must go bankrupt. ”
依据答案的话，好像答案并没有把20%作为一个非常重要的因素，这里的20%是在描述production增加以后所带来的结果。所以只是用这个结果来推出非B---〉非A

找到的解释如下：
可简化题干的表述为：
transformation of the market（A）→Q increase its production（B）
Q not increase its production（非B）→Q will go bankrupt（C）

选项E的表述为：Q not increase production（非B）→Q will go bankrupt（C），与一致。

-- by 会员 fox0923 (2011/8/17 12:40:53)

      但是它是must be true题啊。 那答案应该是完全没有漏洞的。如果它忽略了10%和20%，那就是有漏洞了。

fox0923

这个我也存在疑问，感觉的确是答案有漏洞，所以只好先按着答案的解释那么推一下，静待更好的解释~~~