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May 0608:30 AM PDT
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In Episode 3 of our GMAT Ninja Critical Reasoning series, we tackle Discrepancy, Paradox, and Explain an Oddity questions. You know the feeling: the passage gives you two facts that seem completely contradictory....- May 08
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31 May 2021, 06:00
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
56% (02:05) correct
44%
(02:00)
wrong
based on 385
sessions
History
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Time
Result
Not Attempted Yet
To complete buildings that are similar in size, design, and complexity, construction companies working in Zone A usually take longer than those in Zone B. The equipment used by construction companies in Zone A is more sophisticated than that available to such companies operating in Zone B. It can be said that construction companies in Zone A are far less proficient than those operating in Zone B.
To evaluate the argument, it would be most useful to form a comparison between
(A) the amount of time construction companies in each of the zones need to form a presentation aiming at earning participation in a new building project
(B) the perception and expertise utilized by the manufacturers of the building equipment used by construction companies in the respective zones
(C) the cost of the materials used in the construction of a standard building intended for housing purposes in each zone
(D) the efficiency of the offices of the respective zones involved in processing the bureaucratic paperwork required for a construction project
(E) the style of architecture implemented in the creation of a typical building constructed in each of the zones
To evaluate the argument, it would be most useful to form a comparison between
(A) the amount of time construction companies in each of the zones need to form a presentation aiming at earning participation in a new building project
(B) the perception and expertise utilized by the manufacturers of the building equipment used by construction companies in the respective zones
(C) the cost of the materials used in the construction of a standard building intended for housing purposes in each zone
(D) the efficiency of the offices of the respective zones involved in processing the bureaucratic paperwork required for a construction project
(E) the style of architecture implemented in the creation of a typical building constructed in each of the zones
05 Jun 2021, 04:00
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OFFICIAL EXPLANATION
To complete buildings that are similar in size, design, and complexity, construction companies working in Zone A usually take longer than those in Zone B. The equipment used by construction companies in Zone A is more sophisticated than that available to such companies operating in Zone B. It can be said that construction companies in Zone A are far less proficient than those operating in Zone B.
To evaluate the argument, it would be most useful to form a comparison between
(A) the amount of time construction companies in each of the zones need to form a presentation aiming at earning participation in a new building project
Incorrect.
To solve this Investigation question, first break down the argument. The first two sentences are premises, citing facts. The last sentence uses the conclusion phrase It can be said that, letting us know that it's the conclusion:
- Premise A: to build a given building, companies in Zone A take longer than those in Zone B
+
Premise B: the building equipment in Zone A is better than that in Zone B
=
Conclusion: Zone A construction companies are not as good as those in Zone B
Vital factor: ?
You are required to find the factor which is most crucial to the author's conclusion. The correct answer is an unknown factor which could support or weaken the conclusion depending on its outcome.
This answer choice introduces a factor that is out of the scope of the argument. The time it takes to form a presentation cannot affect the time it takes to build the actual building.
(B) the perception and expertise utilized by the manufacturers of the building equipment used by construction companies in the respective zones
Incorrect.
Answering the question in this answer choice would not help us determine whether the Zone A construction companies were less skillful than those in Zone B. We are already told that the equipment in Zone A is better than that in Zone B so the abilities of the manufacturers are irrelevant.
(C) the cost of the materials used in the construction of a standard building intended for housing purposes in each zone
Incorrect.
This answer choice is insignificant to the argument's conclusion and cannot, therefore, determine its validity. The costs, revenues, or profits of construction are not dealt with in the argument.
(D) the efficiency of the offices of the respective zones involved in processing the bureaucratic paperwork required for a construction project
This answer choice introduces a factor that can affect time and, therefore, is relevant to the conclusion. If the offices on Zone A are just as efficient as those in Zone B, then it is more likely that the lengthy building process in Zone A is related to the actual construction management and workers.
However, if Zone A has terrible bureaucracy and more red-tape than Zone B, then their construction companies are probably less to blame for taking a long time to finish projects.
(E) the style of architecture implemented in the creation of a typical building constructed in each of the zones
Incorrect.
To solve this Investigation question, first break down the argument. The first two sentences are premises, citing facts. The last sentence uses the conclusion phrase It can be said that, letting us know that it's the conclusion:
- Premise A: to build a given building, companies in Zone A take longer than those in Zone B
+
Premise B: the building equipment in Zone A is better than that in Zone B
=
Conclusion: Zone A construction companies are not as good as those in Zone B
Vital factor: ?
You are required to find the factor which is most crucial to the author's conclusion. The correct answer is an unknown factor which could support or weaken the conclusion depending on its outcome.
This answer choice would not help us determine whether the author's conclusion is right since it is already answered by premise A. The argument is based on the comparison of buildings with the same design. Therefore, architecture has been excluded from the argument and cannot be a factor influencing the conclusion.
General Discussion
raj94knp
Joined: 18 Apr 2020
Last visit: 15 Apr 2025
Posts: 53
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Location: India
Schools: Kelley '26 (A$$$) Owen '26 (A$$$$)
GMAT 1: 620 Q50 V23
GMAT 2: 660 Q49 V31
GMAT 3: 710 Q50 V36
GMAT 4: 720 Q50 V37
GMAT 5: 730 Q50 V39
GPA: 3.4
WE:General Management (Energy)
31 May 2021, 16:00
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Was confused b/w B and D but at last choose D because it will help us eliminate the possibility of differences b/w these two zone other than Proficiency.
on the other hand even after getting the comparison in B, we will not be able to tell that proficiency is the reason and we don't know how this external utilization is related to proficiency.
on the other hand even after getting the comparison in B, we will not be able to tell that proficiency is the reason and we don't know how this external utilization is related to proficiency.
