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If the majority of the residents of the apartment complex complain

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If the majority of the residents of the apartment complex complain  [#permalink]

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New post 07 May 2019, 04:52
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A
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If the majority of the residents of the apartment complex complain that their apartments are infested with ants, then the management of the complex will have to engage the services of an exterminator. But the majority of the residents of the complex indicate that their apartments are virtually free of ants. Therefore, the management of the complex will not have to engage the services of an exterminator.

Which one of the following arguments contains a flawed pattern of reasoning parallel to that contained in the argument above?

(A) A theater will be constructed in the fall if funds collected are at least sufficient to cover its cost. To date, the funds collected exceed the theater's cost, so the theater will be constructed in the fall

(B) The number of flights operated by the airlines cannot be reduced unless the airlines can collect higher airfares. But people will not pay higher airfares, so it is not the case that the number of flights will be reduced

(C) In order for the company to start the proposed building project, both the town council and the mayor must approve. Since the mayor has already approved, the building project will be started soon

(D) Most employees will attend the company picnic if the entertainment committee is successful in getting a certain band to play at the picnic. But that band will be out of the country on the day of the picnic, so it is not true that most employees will attend

(E) Either the school's principal or two-thirds of the parent council must approve a change in the school dress code in order for the code to be changed. Since the principal will not approve a change in the dress code, the code will not be changed

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Re: If the majority of the residents of the apartment complex complain  [#permalink]

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New post 10 May 2019, 02:32
I can't understand the difference between (B) and (D).
As I have understood, the flawed pattern of the argument is that it equates "will complain" and "indicate", since residents simply can complain without any indication of ants in their aparts. So, (D) says that out-of-town state of the band is same as it will not play on the picnic, but the band could be out of town in this picnic area and will be able to play.

These parallel reasoning questions are so brutal for me...
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Re: If the majority of the residents of the apartment complex complain  [#permalink]

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New post 10 May 2019, 06:37
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I Feel the original pattern is if X then Y. Conclusion: If not X then not Y. Correct me if I am wrong here. D seemed closest to this pattern.
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New post 10 May 2019, 07:29
To me A is the answer. if X happens then only Y will happen is the reasoning here. I think for option A, this reasoning is happening.
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New post 10 May 2019, 07:42
nkin and popovarseniy, you are both correct. The OA was not correct. (D) is, indeed, the correct answer.
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Re: If the majority of the residents of the apartment complex complain  [#permalink]

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New post 12 May 2019, 07:11
Bunuel wrote:
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BUMPING FOR DISCUSSION.



Hi Bunuel,

Could you please provide your feedback on the answer to this question also could you explain how you got to the particular answer?

Kind regards,

Ritvik
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New post 12 May 2019, 07:12
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nightblade354 wrote:
If the majority of the residents of the apartment complex complain that their apartments are infested with ants, then the management of the complex will have to engage the services of an exterminator. But the majority of the residents of the complex indicate that their apartments are virtually free of ants. Therefore, the management of the complex will not have to engage the services of an exterminator.

Which one of the following arguments contains a flawed pattern of reasoning parallel to that contained in the argument above?

(A) A theater will be constructed in the fall if funds collected are at least sufficient to cover its cost. To date, the funds collected exceed the theater's cost, so the theater will be constructed in the fall

(B) The number of flights operated by the airlines cannot be reduced unless the airlines can collect higher airfares. But people will not pay higher airfares, so it is not the case that the number of flights will be reduced

(C) In order for the company to start the proposed building project, both the town council and the mayor must approve. Since the mayor has already approved, the building project will be started soon

(D) Most employees will attend the company picnic if the entertainment committee is successful in getting a certain band to play at the picnic. But that band will be out of the country on the day of the picnic, so it is not true that most employees will attend

(E) Either the school's principal or two-thirds of the parent council must approve a change in the school dress code in order for the code to be changed. Since the principal will not approve a change in the dress code, the code will not be changed



Hi,

Could you please explain why you feel 'B" is the answer?

Regards,

Ritvik
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New post 12 May 2019, 07:14
menonrit, D is the answer, not B. The OA was updated a few days ago. If you still have confusion about it, I can post an explanation later
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New post 12 May 2019, 07:16
nightblade354 wrote:
menonrit, D is the answer, not B. The OA was updated a few days ago. If you have still confusion about it, I can post an explanation later



Please explain why you changed the Answer.

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New post 12 May 2019, 07:18
menonrit, because the OA was incorrect. I was in error when I posted originally that the OA was B; I misread the answer choice when I was uploading this question. Beyond this, the structure of the question makes D the perfect choice. B has issues that do not make it parallel.
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Re: If the majority of the residents of the apartment complex complain  [#permalink]

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New post 15 May 2019, 09:23
nightblade354 wrote:
If the majority of the residents of the apartment complex complain that their apartments are infested with ants, then the management of the complex will have to engage the services of an exterminator. But the majority of the residents of the complex indicate that their apartments are virtually free of ants. Therefore, the management of the complex will not have to engage the services of an exterminator.

Which one of the following arguments contains a flawed pattern of reasoning parallel to that contained in the argument above?

(A) A theater will be constructed in the fall if funds collected are at least sufficient to cover its cost. To date, the funds collected exceed the theater's cost, so the theater will be constructed in the fall

(B) The number of flights operated by the airlines cannot be reduced unless the airlines can collect higher airfares. But people will not pay higher airfares, so it is not the case that the number of flights will be reduced

(C) In order for the company to start the proposed building project, both the town council and the mayor must approve. Since the mayor has already approved, the building project will be started soon

(D) Most employees will attend the company picnic if the entertainment committee is successful in getting a certain band to play at the picnic. But that band will be out of the country on the day of the picnic, so it is not true that most employees will attend

(E) Either the school's principal or two-thirds of the parent council must approve a change in the school dress code in order for the code to be changed. Since the principal will not approve a change in the dress code, the code will not be changed


Can someone explain why D is the answer?
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New post 15 May 2019, 11:17
hi, can someone offer an explanation of why D is a correct answer choice? I chose option A, can someone also tell me why A is wrong?
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Re: If the majority of the residents of the apartment complex complain  [#permalink]

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New post 15 May 2019, 11:58
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Identify flaw: one will only deal with an issue after the issue has occurred and based on a certain condition.

Let X = complaint of ant infestation; Y = Exterminator to be called. Probability(X) = almost 0%, therefore P(Y) = almost 0%

Apply to each scenario presented:

(A) theater will be constructed in the fall if funds collected are at least sufficient to cover its cost. To date, the funds collected exceed the theater's cost, so the theater will be constructed in the fall. X has occurred, Y will therefore occur as well

(B) The number of flights operated by the airlines cannot be reduced unless the airlines can collect higher airfares. But people will not pay higher airfares, so it is not the case that the number of flights will be reduced X (higher airfares) will definitely not occur, Y will therefore not occur. What distinguishes B from D, in my mind, is that it is not an issue that will only be dealt with once the issue occurs, but rather an issue that cannot be solved since people will not pay higher prices. In D we are dealing with a solvable issue.

(C) In order for the company to start the proposed building project, both the town council and the mayor must approve. Since the mayor has already approved, the building project will be started soon X has occurred, Y will therefore occur as well

(D) Most employees will attend the company picnic if the entertainment committee is successful in getting a certain band to play at the picnic. But that band will be out of the country on the day of the picnic, so it is not true that most employees will attend X has no chance of occurring, Y will therefore not occur as well. This is closer to the infestation scenario as in D we are dealing with a solvable issue in that the party can be re-scheduled

(E) Either the school's principal or two-thirds of the parent council must approve a change in the school dress code in order for the code to be changed. Since the principal will not approve a change in the dress code, the code will not be changedWrong reasoning anyway. X or Z must occur has occurred; X will not occur but Z might so Y may therefore still occur
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If the majority of the residents of the apartment complex complain  [#permalink]

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New post 15 May 2019, 17:40
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abhishek31 wrote:
hi, can someone offer an explanation of why D is a correct answer choice? I chose option A, can someone also tell me why A is wrong?


abhishek31

A is wrong because A is actually a proper argument. The stimulus is a flawed argument. Let's use logic here.

If the majority of the residents of the apartment complex complain that their apartments are infested with ants, then the management of the complex will have to engage the services of an exterminator. But the majority of the residents of the complex indicate that their apartments are virtually free of ants. Therefore, the management of the complex will not have to engage the services of an exterminator.

Residents Complain (RC) → Get Exterminator (GE)
Residents don't complain (~ RC) → Don't Get Exterminator (~ GE)

This is a flawed argument because of mistaken negation. Just because a majority don't complain doesn't mean they won't have to get an exterminator.

Which one of the following arguments contains a flawed pattern of reasoning parallel to that contained in the argument above?

(A) A theater will be constructed in the fall if funds collected are at least sufficient to cover its cost. To date, the funds collected exceed the theater's cost, so the theater will be constructed in the fall

Sufficient Funds (SF) → Theatre Constructed (TC)
The second sentence says the same thing. Because this argument is true, it is incorrect.

(B) The number of flights operated by the airlines cannot be reduced unless the airlines can collect higher airfares. But people will not pay higher airfares, so it is not the case that the number of flights will be reduced

Can't Collect Higher Fares (~HF) → Flight Can't Be Reduced (~FR)
~HF → ~FR

(C) In order for the company to start the proposed building project, both the town council and the mayor must approve. Since the mayor has already approved, the building project will be started soon
This is a both X and Y must approve. Since X is approved, Y is OK. Not a mistaken negation; just a flawed argument.


](D) Most employees will attend the company picnic if the entertainment committee is successful in getting a certain band to play at the picnic. But that band will be out of the country on the day of the picnic, so it is not true that most employees will attend


Success to get band (B) → Employees go to picnic (E)
Band is out of country (~B) → Not true that employees will attend (~E)

(E) Either the school's principal or two-thirds of the parent council must approve a change in the school dress code in order for the code to be changed. Since the principal will not approve a change in the dress code, the code will not be changed

This is an "either ... or" condition. Different from stimulus.
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If the majority of the residents of the apartment complex complain  [#permalink]

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New post 18 May 2019, 22:30
In Similar reasoning questions- is the below approach correct?

Stimulus:
If X happens, Y will happen.
Since X didn't happen , Y will not happen.

Can the answer choice be like the one below?

If A happens, B will happen.
A happened, B will happen
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If the majority of the residents of the apartment complex complain   [#permalink] 18 May 2019, 22:30
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