Tiger sharks are common in the waters surrounding Tenare Island. Usua

Question

Tiger sharks are common in the waters surrounding Tenare Island. Usually tiger sharks feed on smaller sharks, but sometimes they have attacked tourists swimming and surfing at Tenare's beaches. This has hurt Tenare's tourism industry, which is second only to its fishing industry in annual revenues. In order to help the economy, therefore, the mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches.

Which of the following, if true, most strongly calls into question the likelihood that implementation of the mayor's proposal will have the desired consequence?

(A) Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists.

(B) Business owners who depend on tourism are willing to pay most of the cost of implementing the program.

(C) Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions.

(D) The small sharks on which tiger sharks prey feed on fish that are commercially important to the island's fisheries.

(E) Not all tourists who come to Tenare Island enjoy swimming or surfing.

N750 · Accepted Answer

I will pick D here. 
Becasue this the only one which weakens Mayor's desired outcome i.e. to help the economy.

Tiger sharks feed on smaller sharks, which in turn feed on the fish. So if tiger sharks are elimninated then smaller sharks will increase in numbers and in tun will eat more of the fish. As fishing in number one industry so it will hurt economoy more.

heygmat · Answer

If we rewrite this stimulus, then it may be .

Tiger sharks Usually feed on smaller sharks and sometimes attack tourists -when tourists swim at Tenare's beaches. This "attack" hurts Tenare's tourism industry that is second annual revenue producing source in relation to fishing industry. To help the economy, therefore, the mayor offered a program to kill any tiger sharks within a mile of swimming areas of the beaches.

Which of the following, if true, most strongly calls into question the likelihood that implementation of the mayor's proposal will have the desired consequence?

For which of the following, mayor's program may not be better suited for helping economy or increasing revenue?

As per my understanding in weakening question ,action is firstly to find the alternative-----show the relationship is reverse- and------secondly to prove the coclusion is not tenable.

however, here you can use any of them, because you have to show that the program will not bring intended result in helping economy by increasing revenue. 
 
(A) Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists.---- here this support the argument. because this ensures the potential tourists advent, thereby causing huge revenue. this show that the mayor program still best suited for its achieving goal-to increase revenues. 
(B) Business owners who depend on tourism are willing to pay most of the cost of implementing the program.  who will bear the cost of the program is not our concern. but the concern is to whether the program will be successful for achieving revenue or not.though it indirectly support the argument, it does not tell the success of the program. 
(C) Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions.  it may be that the main tourist attractions are to swimming and surfing in Tenare beaches rather than Tenare Island attracting features. this event produces huge revenue, but tiger shark causes hurt these tourists, tourists will not come again and dispense a dire feelings among potential roamers. this will hurt revenue, so this program must be implement for certaining the economy from the losses. this is strenthening the argument not weakening the argument. but if you say, this option is irrelevant, i will not absolutely disagree with you...... 
(D) The small sharks on which tiger sharks prey feed on fish that are commercially important to the island's fisheries.
(E) Not all tourists who come to Tenare Island enjoy swimming or surfing.   this entails some possibilty for some tourists to be attacked by the tiger sharks if they swim in the beaches.-----what the stimulus says ---- but sometimes they have attacked tourists swimming and surfing at Tenare's beaches. ----------it says tourists swimming and surfing, here swimming and surfing modifies the tourists who are in the beaches for tiger shark's reach. so you can not attack the argument by the same line from the stimulus. and it also true that if some of tourists be attacked by the tiger sharks, other tourists will not be motivated to visit this beaches, i think they will disseminate the bad experience from the beaches to their close one or potential visitors to the beaches.

in D what it says ? our concern is to weaken the program that will not bring intended result in increasing revenues, ok?
D says----
tiger shaks feed small shark
small shark feed fish 
fish are first revenue producing industry in Tenare
: if the program be succeed , then small sharks will easily feed on the fish that is 1st revenues generating sector in the beaches, causing negative impact on the economy
: if the program is not be succeeded , the small sharks will be reduced in number and feed on fish,this event will increase the fish and revenue for tenare.

be care when reading a sentence having modifiers...........i will also appear for the exam same date to your

maybeam · Answer

Tiger sharks are common in the waters surrounding Tenare Island. Usually tiger sharks feed on smaller sharks, but sometimes they have attacked tourists swimming and surfing at Tenare's beaches. This has hurt Tenare's tourism industry, which is second only to its fishing industry in annual revenues. In order to help the economy, therefore, the mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches.

Which of the following, if true, most strongly calls into question the likelihood that implementation of the mayor's proposal will have the desired consequence?

(A) Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists.
(B) Business owners who depend on tourism are willing to pay most of the cost of implementing the program.
(C) Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions.
(D) The small sharks on which tiger sharks prey feed on fish that are commercially important to the island's fisheries.
(E) Not all tourists who come to Tenare Island enjoy swimming or surfing.

thevenus · Answer

Very tricky,

(D) The  small sharks  on which tiger sharks prey  feed on fish  that are commercially important to the island's fisheries.

small shark...feed on fish (small shark eats small fishes)

when tiger sharks will be killed then the number of small sharks will increase then these small sharks will eat the small fishes ,which are commercially important to generate revenue.

bschooladmit · Answer

Opps i got this wrong. I chose E. I didnt understand D at first, i thought Tiger Sharks are feeding small sharks, with careful reading found out, it is not so!

My take away from HeyGMAT's Explanation - To be careful while choosing options with   some,not many, a few   sort of wordings. This one is going to my exception list! +1 to you HeyGMAT!

KarishmaB · Answer

This is a weaken question. Problem: Tiger sharks are common in the waters surrounding Tenare Island. Usually tiger sharks feed on smaller sharks, but sometimes they have attacked tourists swimming and surfing at Tenare's beaches. This has hurt Tenare's tourism industry, which is second only to its fishing industry in annual revenues. Plan: The mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches. Aim of the Plan: Help the economy There is a plan - to help the economy, kill tiger sharks within a mile of the beaches. Not all sharks mind you, just tiger sharks. Tiger sharks feed on small sharks and small sharks feed on fish. Kill tiger sharks so tourism will do well and hence economy will do well. Not here is another problem: If we kill tiger sharks, what happens to the population of small sharks? It explodes because their predator is gone. Then what happens to population of fish? It plummets because their predator (small shark) has exploded in population. So what happens to the fishing industry? Its revenues fall. So what will weaken the plan? D.The small sharks on which tiger sharks prey feed on fish that are commercially important to the island\'s fisheries. If tiger sharks are killed, small sharks will prosper which means the number of fish they feed on will decrease. Since this fish is commercially important, if their availability reduces, the revenues from fishing may reduce. Hence, actually, the economy may not be helped. This weakens our plan. Look at other options: A. Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists. This doesn't weaken our plan, it actually strengthens it. Tourists will get reassured and will come back. Economy will be helped. B. Business owners who depend on tourism are willing to pay most of the cost of implementing the program. Again, if anything, it strengthens our plan (very slightly though!). The cost of the program will not be paid by the govt and hence the revenues generated will not be lost on implementing the program. So economy will be helped. C. Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions. This means beaches are important for tourism. More of a reason to implement the plan for the economy. E. Not all tourists who come to Tenare Island enjoy swimming or surfing. Irrelevant. Many do and tourism gets hurt because of sharks. Answer (D) Some weaken question discussions: https://youtu.be/55QgRwZmFRo

keysx015 · Answer

I struggled with this one because answer D reads as if the "small sharks" are important to the island's fisheries.... because they (along with fish) are being caught by fishermen. Your answer makes sense but only if you don't read that the small sharks are important commercially important to the fisheries.... Did i read something incorrectly?

KarishmaB · Answer

(D) The small sharks on which tiger sharks prey feed on fish that are commercially important to the island\'s fisheries.

Tiger sharks feed on small sharks which in turn feed on fish that are commercially important to the island.

Option (D) tells you that small sharks feed on the fish that are commercially important to the island. They actually reduce the number of fish that are important. The option does not imply that the small sharks themselves are important to the island.

souvik101990 · Answer

here's the basic deal: 
* economy has 2 main pillars: TOURISM and FISHING 
* tiger sharks are hurting TOURISM 
* mayor wants to help TOURISM by killing tiger sharks

if you want to weaken this argument, you want to show that killing the tiger sharks will have a deleterious effect on the other pillar of the economy - namely, FISHING. (note how much more obvious this is if you diagram the passage, as i've roughly done above).

choice d is correct, because it shows that, while killing tiger sharks may be good for TOURISM, it will be bad for FISHING (which, the passage asserts, is ultimately a more important industry).

wrong answers: 
choice a has the opposite effect: it actually strengthens the mayor's policy, by assuring that there will be a positive effect even if the program is not carried out to the fullest.

choice b is neutral (transferring $ from businesses neither infuses $ into the economy nor removes $ from the economy).

choice c strengthens the policy, because it underscores the idea that the beaches are critical to the economy (and therefore that removal of the tiger sharks is of paramount importance)

choice e is irrelevant, because the non-beach tourists have no bearing on the issue either way.

mihir0710 · Answer

Tiger sharks are common in the waters surrounding Tenare Island. Usually tiger sharks feed on smaller sharks, but sometimes they have attacked tourists swimming and surfing at Tenare's beaches. This has hurt Tenare's tourism industry, which is second only to its fishing industry in annual revenues. In order to help the economy, therefore, the mayor of the island has proposed an ongoing program to kill any tiger sharks within a mile of the beaches.

Which of the following, if true, most strongly calls into question the likelihood that implementation of the mayor's proposal will have the desired consequence?

(A) Even if not all the tiger sharks that come close to the beaches are killed, the existence of the program would reassure tourists.
This actually say that plan will lead to increased tourist …so in a way this option strengthens the argument

(B) Business owners who depend on tourism are willing to pay most of the cost of implementing the program.
Irrelevant

(C) Tourists come to Tenare Island for its beaches, even though the island features a number of other tourist attractions.
This option only says why it is important to have control on population of tiger sharks. As tourists love the islands beaches, TS are a major threat to the island’s tourists
 
(D) The small sharks on which tiger sharks prey feed on fish that are commercially important to the island's fisheries.
If TS are killed, the other sharks which TS eats will increase in number (of course a no-brainer).
This option gives us information about what will happen if these other small shark’s number increases.
The option say, this increased number of small sharks prey on fishes which are commercially important. So, the number of fishes will go down and thus will affect the Island’s economy and thus will not let the mayor’s proposal to succeed. 
Perfect answer.
 
(E) Not all tourists who come to Tenare Island enjoy swimming or surfing.
In a way, this option is irrelevant as the argument already says that Tiger shark’s attack has hurt the island’s tourist industry. So knowing how many tourist enjoy the island’s beaches will make no difference to the argument and the mayor’s plan.

T1101 · Answer

For someone struggling with this question, maybe this article can help:  https://www.manhattanprep.com/gmat/blog/tackling-a-gmatprep-critical-reasoning-weaken-problem/

MukuDawra · Answer

Hi experts 
I am not able to comprehend the reasoning given for (D) given in various posts. That the number of fish will decrease as small sharks population increases, thereby impacting fishing. There is nowhere in the argument it is mentioned that small sharks feed on fish. Then how can we assume this piece of information?

VerbalBot · Answer

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Tiger sharks are common in the waters surrounding Tenare Island. Usua

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Tiger sharks are common in the waters surrounding Tenare Island. Usua

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