Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Aug 2211:00 AM EDT
-11:59 PM EDT
More and more TTP students are earning impressive scores on the GMAT. Now is the perfect time to join the many GMAT students who made the switch to TTP and surpassed their wildest expectations on test day.
Aug 2910:00 PM IST
-11:30 PM IST
With brand new features like:AI-driven Planner tool, 850+ data Insights practice questions and GMAT Focus Edition Adaptive mock tests with ESR+ analysis and personal mentor support, our course is the most comprehensive course for GMAT Focus Edition.
Aug 3112:00 PM EDT
-03:00 PM EDT
Save 20% on Target Test Prep and Score in the 100th Percentile in GMAT Verbal! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Aug 3103:00 PM EDT
-11:59 PM EDT
For a limited time use code FALL20 to save on prep. Valid on Complete Course, Advanced Course, Bootcamp Course, Tutoring, and the Executive Assessment Course. This discount ends September 16th.
Sep 0212:01 AM PDT
-11:59 PM PDT
On Monday the 2nd, GMAT Club Tests will be Absolutely Free! Including all the Quizzes, Questions, and Tests. 12 AM - 11:59 PM PST- Sep 07
11:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.
Re: Lockeport's commercial fishing boats use gill nets, which kill many of
[#permalink]
20 Nov 2022, 06:18
20 Nov 2022, 06:18
KarishmaB wrote:
parkhydel wrote:
Lockeport's commercial fishing boats use gill nets, which kill many of the netted fish, including some fish of endangered species. The fishing commission has proposed requiring the use of tent nets, which do not kill fish; boat crews would then throw back fish of endangered species. Profitable commercial fishing boats in similar areas have already switched over to tent nets. The proposal can therefore be implemented without economic harm to Lockeport's commercial fishing boat operators.
Which of the following, if true, casts the most serious doubt on the argument made for the proposal?
A. In places where the use of tent nets has been mandated, there are typically fewer commercial fishing boats in operation than there were before tent nets came into use.
B. Even when used properly, gill nets require many more repairs than do tent nets.
C. Recreational anglers in Lockeport catch more fish of endangered species than do commercial fishing boats.
D. The endangered species of fish in Lockeport's commercial fishing area did not become endangered as a result of the use of gill nets by fishing fleets.
E. The endangered species of fish caught by Lockeport's commercial fishing fleet are of no commercial value.
CR51520.02
Which of the following, if true, casts the most serious doubt on the argument made for the proposal?
A. In places where the use of tent nets has been mandated, there are typically fewer commercial fishing boats in operation than there were before tent nets came into use.
B. Even when used properly, gill nets require many more repairs than do tent nets.
C. Recreational anglers in Lockeport catch more fish of endangered species than do commercial fishing boats.
D. The endangered species of fish in Lockeport's commercial fishing area did not become endangered as a result of the use of gill nets by fishing fleets.
E. The endangered species of fish caught by Lockeport's commercial fishing fleet are of no commercial value.
CR51520.02
Lockporte boats use gill nets. So the endangered fish caught are killed in them.
Use tent nets. Fish are not killed. So endangered fish can be freed.
Profitable commercial fishing boats in similar areas have already switched over to tent nets.
Conclusion: Tent nets can be used without economic harm.
Note that there is only one actual premise in the argument - that profitable boats in similar areas have already switched to tent nets. Rest is all context to explain us what gill nets and tent nets are. Using this premise, we are concluding that in Lockport too, we can adopt tent nets without economic harm.
We need to cast doubt on the proposal.
A. In places where the use of tent nets has been mandated, there are typically fewer commercial fishing boats in operation than there were before tent nets came into use.
This tells us that in the places we are talking about in our premise, there are fewer commercial fishing boats today. It means some commercial boats went out of business or did not find tent nets profitable enough. Whatever the cause, the point is that it seems there would be economic harm. Hence our conclusion "without economic harm" may not be justified. Correct.
B. Even when used properly, gill nets require many more repairs than do tent nets.
Favours tent nets. Does not harm our conclusion.
C. Recreational anglers in Lockeport catch more fish of endangered species than do commercial fishing boats.
Irrelevant. The comparison doesn't affect us either way.
D. The endangered species of fish in Lockeport's commercial fishing area did not become endangered as a result of the use of gill nets by fishing fleets.
It is irrelevant why the fish became endangered - was it overfishing or some disease or low on food etc, it doesn't matter to our argument at all. The point is only this - if we now switch to tent nets, will there be any economic impact?
E. The endangered species of fish caught by Lockeport's commercial fishing fleet are of no commercial value.
If anything, it helps our plan. The fishermen will be required to free the endangered fish. If they have no commercial value, it means no impact economically.
Answer (A)
Hi KarishmaB
Thanks for wonderful explanation.
As per my understanding option E don't have any impact on argument .
If the endangered fish caught at Lockeport don't have any commercial value then than fisherman would avoid fishing those endangered fishes. So as a result it don't have any impact on argument. Could you please evaluate my reasoning.
Re: Lockeport's commercial fishing boats use gill nets, which kill many of
[#permalink]
20 Nov 2022, 21:49
20 Nov 2022, 21:49
2
Kudos
Expert Reply
MukuDawra wrote:
KarishmaB wrote:
parkhydel wrote:
Lockeport's commercial fishing boats use gill nets, which kill many of the netted fish, including some fish of endangered species. The fishing commission has proposed requiring the use of tent nets, which do not kill fish; boat crews would then throw back fish of endangered species. Profitable commercial fishing boats in similar areas have already switched over to tent nets. The proposal can therefore be implemented without economic harm to Lockeport's commercial fishing boat operators.
Which of the following, if true, casts the most serious doubt on the argument made for the proposal?
A. In places where the use of tent nets has been mandated, there are typically fewer commercial fishing boats in operation than there were before tent nets came into use.
B. Even when used properly, gill nets require many more repairs than do tent nets.
C. Recreational anglers in Lockeport catch more fish of endangered species than do commercial fishing boats.
D. The endangered species of fish in Lockeport's commercial fishing area did not become endangered as a result of the use of gill nets by fishing fleets.
E. The endangered species of fish caught by Lockeport's commercial fishing fleet are of no commercial value.
CR51520.02
Which of the following, if true, casts the most serious doubt on the argument made for the proposal?
A. In places where the use of tent nets has been mandated, there are typically fewer commercial fishing boats in operation than there were before tent nets came into use.
B. Even when used properly, gill nets require many more repairs than do tent nets.
C. Recreational anglers in Lockeport catch more fish of endangered species than do commercial fishing boats.
D. The endangered species of fish in Lockeport's commercial fishing area did not become endangered as a result of the use of gill nets by fishing fleets.
E. The endangered species of fish caught by Lockeport's commercial fishing fleet are of no commercial value.
CR51520.02
Lockporte boats use gill nets. So the endangered fish caught are killed in them.
Use tent nets. Fish are not killed. So endangered fish can be freed.
Profitable commercial fishing boats in similar areas have already switched over to tent nets.
Conclusion: Tent nets can be used without economic harm.
Note that there is only one actual premise in the argument - that profitable boats in similar areas have already switched to tent nets. Rest is all context to explain us what gill nets and tent nets are. Using this premise, we are concluding that in Lockport too, we can adopt tent nets without economic harm.
We need to cast doubt on the proposal.
A. In places where the use of tent nets has been mandated, there are typically fewer commercial fishing boats in operation than there were before tent nets came into use.
This tells us that in the places we are talking about in our premise, there are fewer commercial fishing boats today. It means some commercial boats went out of business or did not find tent nets profitable enough. Whatever the cause, the point is that it seems there would be economic harm. Hence our conclusion "without economic harm" may not be justified. Correct.
B. Even when used properly, gill nets require many more repairs than do tent nets.
Favours tent nets. Does not harm our conclusion.
C. Recreational anglers in Lockeport catch more fish of endangered species than do commercial fishing boats.
Irrelevant. The comparison doesn't affect us either way.
D. The endangered species of fish in Lockeport's commercial fishing area did not become endangered as a result of the use of gill nets by fishing fleets.
It is irrelevant why the fish became endangered - was it overfishing or some disease or low on food etc, it doesn't matter to our argument at all. The point is only this - if we now switch to tent nets, will there be any economic impact?
E. The endangered species of fish caught by Lockeport's commercial fishing fleet are of no commercial value.
If anything, it helps our plan. The fishermen will be required to free the endangered fish. If they have no commercial value, it means no impact economically.
Answer (A)
Hi KarishmaB
Thanks for wonderful explanation.
As per my understanding option E don't have any impact on argument .
If the endangered fish caught at Lockeport don't have any commercial value then than fisherman would avoid fishing those endangered fishes. So as a result it don't have any impact on argument. Could you please evaluate my reasoning.
It is not feasible to catch only a certain type of fish. One could fish in certain areas where a certain type is abundant but other than that, one cannot control which type of fish will get caught in the net. So if 100 fish get caught, 20 of those could be endangered (for example). Currently, some of these 100 get killed including some of the endangered ones.
If tent nets are used, fish are not killed. The plan is to require fishermen to throw back the 20 fish of endangered species which would be all alive. Since these 20 don't have any economic value (as per option (E)), there won't be any loss to the fishermen.
So option (E) supports the plan that switching to tent nets will not have any economic harm.
Re: Lockeport's commercial fishing boats use gill nets, which kill many of
[#permalink]
24 Apr 2023, 23:18
24 Apr 2023, 23:18
Option A casts the most serious doubt on the argument made for the proposal because it suggests that mandating the use of tent nets could result in a reduction in the number of commercial fishing boats operating in Lockeport. This reduction in the number of boats could have a significant economic impact on Lockeport's commercial fishing boat operators, even if other areas have implemented tent nets without harm. Thus, it would suggest that the proposal could harm Lockeport's commercial fishing industry, despite evidence of similar areas not being harmed. Therefore, A is the correct answer.
