GMAT Critical Reasoning Discussions

Since this is an inference question, we do not need to breakdown the stimulus in any way. We need to accept everything that Randall tells as true, and we need to look for an answer choice that, therefore, also must be true.

Choice (A) certainly could be true, but it does not need to be, so we can eliminate it. Based on Randalls statement it is entirely possible that no amateur theater productions reflect his skills as a dramatist.

Choice (B) is an extreme answer choice. We know this because of the presence of the word all. It is possible that some well-done productions do not reflect Randalls skill for some other reason, for example low production values.

Choice (C) is also extreme. It is possible that a well-done production does not reflect Randalls skill.

Choice (D) is too broad. We do not know anything about productions other than Randalls.

Finally, choice (E) must be true. Many amateur productions are poorly done and poorly done productions do not reflect Randalls skills as a dramatist. Therefore, some such productions must not reflect Randalls skills. Thus, (E) is the correct answer.


I think this is the correct answer jpriya_jce, and very well explained, are you by any chance an instructor? At least from the way u have analysed this question it seems so.

Cognizant bhai, even i agree with Angad that E should be correct answer, can you provide the source?
I think this is the correct answer jpriya_jce, and very well explained, are you by any chance an instructor? At least from the way u have analysed this question it seems so.

Cognizant bhai, even i agree with Angad that E should be correct answer, can you provide the source?


Dont know why i didnt do this earlier.....
Just google the question.....its a sample question from Kaplan: Kaplan GMAT Sample Problem: Critical Reasoning Inferences | The GMAT Club

jpriya_jce : When you copy-paste someone else's post, you are just not helping your chances, what you can do is share the link for the same.
I think this is the correct answer jpriya_jce, and very well explained, are you by any chance an instructor? At least from the way u have analysed this question it seems so.

Cognizant bhai, even i agree with Angad that E should be correct answer, can you provide the source?


Yes. The source of the explanation is the same as stated above

I'll mention the links of the explanations also. Thanks:)

Randall: Many of the productions of my plays by amateur theater groups are poorly done, and such interpretations do not provide a true measure of my skills as a dramatist. Which one of the following can be properly inferred from Randalls statement?
(A) Some amateur theater groups productions of Randalls plays provide a true measure of his skills as a dramatist. this can be inference see this is mentioned implicitly when randall is telling many plays do not provide a true measure of skills it means there are some plays which have provided true measure of his skills if all plays do not provide true measure then how will randall come to know that these plays do not provide true measure as dramatist based on some analysis he would have told majority of plays dont provide true measure.so this could be inference
(E) At least some amateur theatrical groups productions of Randalls plays fail to provide a true measure of his skills as a dramatist.what is there to infer here its already mentioned explicitly or just restatement of the premise many of the procutions.....are poorly done..do not provide true measure.
also atleast some doesnt necessarily mean only some it can also include all plays logically so cant be inference hence eliminated

this one i got from kaplan notes which i have got from my friend who took kaplan classes.online stuff has some errors this questions has been discussed.


Still disagree, when we are making an inference, there has to be some way that we can link back the inference logically and with CERTAINITY to the stimulus.
We can do that with E but not with A.
Still disagree, when we are making an inference, there has to be some way that we can link back the inference logically and with CERTAINITY to the stimulus.
We can do that with E but not with A.


Agree. Its a 'Must be True' question, and the correct option must subscribe to the logical limits offered in the stimulus. I'd go with option E) as well.



According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically. The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two high-way bridges along the route the rail line serves. Although the proposed improvements are indeed needed, the authority's plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.

1. Which of the following, if true, would cast the most doubt on the effectiveness of the authority's plan to finance the proposed improvements by increasing bridge tolls?
(A) Before the authority increases tolls on any of the area bridges, it is required by law to hold public hearings at which objections to the proposed increase can be raised.
(B) Whenever bridge tolls are increased, the authority must pay a private contractor to adjust the automated toll-collecting machines.
(C) Between the time a proposed toll increase is announced and the time the increase is actually put into effect, many commuters buy more tokens than usual to postpone the effects of the increase.
(D) When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved.
(E) The chairman of the authority is a member of the Tristate Automobile Club that has registered strong opposition to the proposed toll increase.

2. Which of the following, if true, would provide the authority with the strongest counter to the objection that its plan is unfair?
(A) Even with the proposed toll increase, the average bridge toll in the tristate region would remain less than the tolls charged in neighboring states.
(B) Any attempt to finance the improvements by raising rail fares would result in a decrease in ridership and so would be self-defeating.
(C) Automobile commuters benefit from well-maintained bridges, and in the tristate region bridge maintenance is funded out of general income tax revenues to which both automobile and rail commuters contribute.
(D) The roads along the route served by the rail line are highly congested and drivers benefit when commuters are diverted from congested roadways to mass transit.
(E) The only alternative way of funding the proposed improvements now being considered is through a regional income tax surcharge, which would affect automobile commuters and rail commuters alike.
The OA for both is 1. So your response for the first one is correct but second one is wrong. The response of sausi007 is correct. I do not have the explanations but i find his explanation convincing.



I came across one more CR (find an assumption). Pls try this also out

Researchers studying the spread of the Black Plague in sixteenth-century England claim that certain people survived the epidemic because they carried a genetic mutation, known as Delta-32, that is known to prevent the bacteria that causes the Plague from overtaking the immune system. To support this hypothesis, the researchers tested the direct descendants of the residents of an English town where an unusually large proportion of people survived the Plague. More than half of these descendants tested positive for the mutation Delta-32, a figure nearly three times higher than that found in other locations.

The researchers' hypothesis is based on which of the following assumptions?

A) Delta-32 does not prevent a carrier from contracting any disease other than the Plague.
B) The Plague is not similar to other diseases caused by bacteria.
C) Delta-32 did not exist in its current form until the sixteenth century.
D) No one who tested positive for Delta-32 has ever contracted a disease caused by bacteria.
E) The Plague does not cause genetic mutations such as Delta-32.

I think its E.
No relation of plague, that it too can cause the generation of Delta-32, is given.

According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically. The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two high-way bridges along the route the rail line serves. Although the proposed improvements are indeed needed, the authoritys plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.

1. Which of the following, if true, would cast the most doubt on the effectiveness of the authoritys plan to finance the proposed improvements by increasing bridge tolls?
(A) Before the authority increases tolls on any of the area bridges, it is required by law to hold public hearings at which objections to the proposed increase can be raised.
(B) Whenever bridge tolls are increased, the authority must pay a private contractor to adjust the automated toll-collecting machines.
(C) Between the time a proposed toll increase is announced and the time the increase is actually put into effect, many commuters buy more tokens than usual to postpone the effects of the increase.
(D) When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved.
(E) The chairman of the authority is a member of the Tristate Automobile Club that has registered strong opposition to the proposed toll increase.

2. Which of the following, if true, would provide the authority with the strongest counter to the objection that its plan is unfair?
(A) Even with the proposed toll increase, the average bridge toll in the tristate region would remain less than the tolls charged in neighboring states.
(B) Any attempt to finance the improvements by raising rail fares would result in a decrease in ridership and so would be self-defeating.
(C) Automobile commuters benefit from well-maintained bridges, and in the tristate region bridge maintenance is funded out of general income tax revenues to which both automobile and rail commuters contribute.
(D) The roads along the route served by the rail line are highly congested and drivers benefit when commuters are diverted from congested roadways to mass transit.
(E) The only alternative way of funding the proposed improvements now being considered is through a regional income tax surcharge, which would affect automobile commuters and rail commuters alike.


1.(D) When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved.

2.
(D) The roads along the route served by the rail line are highly congested and drivers benefit when commuters are diverted from congested roadways to mass transit.
Agree. Its a 'Must be True' question, and the correct option must subscribe to the logical limits offered in the stimulus. I'd go with option E) as well.



According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically. The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two high-way bridges along the route the rail line serves. Although the proposed improvements are indeed needed, the authoritys plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.

1. Which of the following, if true, would cast the most doubt on the effectiveness of the authoritys plan to finance the proposed improvements by increasing bridge tolls?
(A) Before the authority increases tolls on any of the area bridges, it is required by law to hold public hearings at which objections to the proposed increase can be raised.
(B) Whenever bridge tolls are increased, the authority must pay a private contractor to adjust the automated toll-collecting machines.
(C) Between the time a proposed toll increase is announced and the time the increase is actually put into effect, many commuters buy more tokens than usual to postpone the effects of the increase.
(D) When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved.
(E) The chairman of the authority is a member of the Tristate Automobile Club that has registered strong opposition to the proposed toll increase.

2. Which of the following, if true, would provide the authority with the strongest counter to the objection that its plan is unfair?
(A) Even with the proposed toll increase, the average bridge toll in the tristate region would remain less than the tolls charged in neighboring states.
(B) Any attempt to finance the improvements by raising rail fares would result in a decrease in ridership and so would be self-defeating.
(C) Automobile commuters benefit from well-maintained bridges, and in the tristate region bridge maintenance is funded out of general income tax revenues to which both automobile and rail commuters contribute.
(D) The roads along the route served by the rail line are highly congested and drivers benefit when commuters are diverted from congested roadways to mass transit.
(E) The only alternative way of funding the proposed improvements now being considered is through a regional income tax surcharge, which would affect automobile commuters and rail commuters alike.


My answers :
1. D
2. C

OA's?

Puys, pls take a look at this one, Source: Manhattan

Analyst: The pace of technological development brings a constant stream of new devices to the market, and many of them enjoy commercial success. But announcing new technology too soon after the introduction of a successful device can backfire. Once consumers hear about the new device, they may stop buying the one currently on sale. So, if a company wishes to announce the upcoming sale of a new device, it should wait until purchases of the old device have begun to decline.
Which of the following, if true, would best support the analysts main assertion?
(A) New technology often becomes less expensive after an initial surge in sales.
(B) Media outlets, such as television programs and magazines, often report on the planned introduction of new devices while the sales of old devices are still strong.
(C) Many consumers are unable to determine whether new technology is superior to current technology.
(D) Surveys have shown that some consumers make only one or two technology purchases per year, whereas others make more frequent purchases.
(E) Consumers tend to be loyal to technology companies whose products they enjoy using.

Puys, pls take a look at this one, Source: Manhattan

Analyst: The pace of technological development brings a constant stream of new devices to the market, and many of them enjoy commercial success. But announcing new technology too soon after the introduction of a successful device can backfire. Once consumers hear about the new device, they may stop buying the one currently on sale. So, if a company wishes to announce the upcoming sale of a new device, it should wait until purchases of the old device have begun to decline.
Which of the following, if true, would best support the analysts main assertion?
(A) New technology often becomes less expensive after an initial surge in sales.
(B) Media outlets, such as television programs and magazines, often report on the planned introduction of new devices while the sales of old devices are still strong.
(C) Many consumers are unable to determine whether new technology is superior to current technology.
(D) Surveys have shown that some consumers make only one or two technology purchases per year, whereas others make more frequent purchases.
(E) Consumers tend to be loyal to technology companies whose products they enjoy using.



A? Find the assumptions. the answer will of the type which establishes a feasibility of the premises.
The premise is that the it should wait until purchases of the old device have begun to decline. and option A does establish the feasibility of the prices declining..

B Wrong Direction

D and E are irrelevant.

C might look like the correct one on the grounds of providing another cause for the customer to not buy the new technology as they do not understand this.But they understand or dont understand..that does not stop them from buying the new products..Hope I am clear in what I want to convey.

Comments??
Puys, pls take a look at this one, Source: Manhattan

Analyst: The pace of technological development brings a constant stream of new devices to the market, and many of them enjoy commercial success. But announcing new technology too soon after the introduction of a successful device can backfire. Once consumers hear about the new device, they may stop buying the one currently on sale. So, if a company wishes to announce the upcoming sale of a new device, it should wait until purchases of the old device have begun to decline.
Which of the following, if true, would best support the analysts main assertion?
(A) New technology often becomes less expensive after an initial surge in sales.
(B) Media outlets, such as television programs and magazines, often report on the planned introduction of new devices while the sales of old devices are still strong.
(C) Many consumers are unable to determine whether new technology is superior to current technology.
(D) Surveys have shown that some consumers make only one or two technology purchases per year, whereas others make more frequent purchases.
(E) Consumers tend to be loyal to technology companies whose products they enjoy using.


Hey Sausi007,

This q. has been posted just 3 pages back.. Here is the link for your perusal:

http://www.pagalguy.com/forum/gmat-and-related-discussions/20700-gmat-critical-reasoning-discussions-425.html#post2802599

We can continue to discuss this further..

HTH !!

According to the Tristate Transportation Authority, making certain improvements to the main commuter rail line would increase ridership dramatically. The authority plans to finance these improvements over the course of five years by raising automobile tolls on the two high-way bridges along the route the rail line serves. Although the proposed improvements are indeed needed, the authoritys plan for securing the necessary funds should be rejected because it would unfairly force drivers to absorb the entire cost of something from which they receive no benefit.


1.(D) When tolls were last increased on the two bridges in question, almost 20 percent of the regular commuter traffic switched to a slightly longer alternative route that has since been improved.

2.
(D) The roads along the route served by the rail line are highly congested and drivers benefit when commuters are diverted from congested roadways to mass transit.


Thats the OA!!!

Puys, pls take a look at this one, Source: Manhattan

Analyst: The pace of technological development brings a constant stream of new devices to the market, and many of them enjoy commercial success. But announcing new technology too soon after the introduction of a successful device can backfire. Once consumers hear about the new device, they may stop buying the one currently on sale. So, if a company wishes to announce the upcoming sale of a new device, it should wait until purchases of the old device have begun to decline.
Which of the following, if true, would best support the analysts main assertion?


Argument: Announcement of new technology might drop sales of the current one where it otherwise could have enjoyed good sales. So companies shdnt make early announcements.


(A) New technology often becomes less expensive after an initial surge in sales.
If new technology becomes less expensive, it might again boost up sales. So cant really conclude that this harms the company. Doesnt support the analysts assertion.

(B) Media outlets, such as television programs and magazines, often report on the planned introduction of new devices while the sales of old devices are still strong.
If Media spreads the news of new technology, after company made its announcement, ppl get to know about it, sales are withheld. So this goes along with the Analysts reasoning.

(C) Many consumers are unable to determine whether new technology is superior to current technology.
This can go either ways for a company. Cannot conclude anything.

(D) Surveys have shown that some consumers make only one or two technology purchases per year, whereas others make more frequent purchases.
Again, no good info. Do the frequent consumers contribute more to the sales of a company, or otherwise? Do not know!!! Irrelevant info.

(E) Consumers tend to be loyal to technology companies whose products they enjoy using.
No sort of conclusion i can find from this.

Option B) would be correct.

Please help on this---

17. Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.

Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.

It can be inferred from the conversation above that Mark has interpreted Ronalds statement to mean that

(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months

is there ne book only for critical reasoning?

Please help on this---

17. Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.
Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.
It can be inferred from the conversation above that Mark has interpreted Ronalds statement to mean that
(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months



Clear from the passage...they are not related.
Please help on this---

17. Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.

Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.

It can be inferred from the conversation above that Mark has interpreted Ronalds statement to mean that

(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months


X -> housing prices increase

y -> Interest rates fall significantly

Ronald: X wont happen unless Y happens ... this also implies that Y can happen but X might not happen ..

Mark: Y happened but X did not happen ..(implied part above is true in this)

Mark makes this statement as he understands Ronald's statement to mean: X will happen whenever Y happens ..

i.e Option B
Puys, pls take a look at this one, Source: Manhattan

Analyst: The pace of technological development brings a constant stream of new devices to the market, and many of them enjoy commercial success. But announcing new technology too soon after the introduction of a successful device can backfire. Once consumers hear about the new device, they may stop buying the one currently on sale. So, if a company wishes to announce the upcoming sale of a new device, it should wait until purchases of the old device have begun to decline.
Which of the following, if true, would best support the analysts main assertion?
(A) New technology often becomes less expensive after an initial surge in sales.
(B) Media outlets, such as television programs and magazines, often report on the planned introduction of new devices while the sales of old devices are still strong.
(C) Many consumers are unable to determine whether new technology is superior to current technology.
(D) Surveys have shown that some consumers make only one or two technology purchases per year, whereas others make more frequent purchases.
(E) Consumers tend to be loyal to technology companies whose products they enjoy using.



This is true as the customer tend to find more and more interest in the product is the initial one wa sa sucess and if the latter is not up to the mark still then product productivity tends to decrease and if its better the last one people start leaving the old technology and start using the new technology.
Please help on this---

17. Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.

Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.

It can be inferred from the conversation above that Mark has interpreted Ronalds statement to mean that

(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months



If we look at Mark's statement; He says the housing prices dint rise at all, which implies that he thinks that the prices must have increased. Hence option B

Guys,Correct me if i m wrong
Please help on this---

17. Ronald: According to my analysis of the national economy, housing prices should not increase during the next six months unless interest rates drop significantly.
Mark: I disagree. One year ago, when interest rates last fell significantly, housing prices did not increase at all.
It can be inferred from the conversation above that Mark has interpreted Ronalds statement to mean that
(A) housing prices will rise only if interest rates fall
(B) if interest rates fall, housing prices must rise
(C) interest rates and housing prices tend to rise and fall together
(D) interest rates are the only significant economic factor affecting housing prices
(E) interest rates are likely to fall significantly in the next six months


Take in bolds!!
Will go with Emin3m's explanation. Spot On!!

A similar question was disussed recently: http://www.pagalguy.com/forum/gmat-and-related-discussions/20700-gmat-critical-reasoning-discussions-423.html#post2791193