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Jennifer: Video rental outlets in Centerville together handled 10,000

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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 09 Aug 2012, 12:45
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It's really important to understand what DIRECTION you should be taking for this question.

We want to weaken Brad's argument. Brad was arguing against Jennifer --> essentially we are trying to find something that supports Jennifer's case.

Jennifer says: Decline is due to Videorama
Brad says: No, that's not true, something else is responsible

To weaken Brad's claim, we almost have to reaffirm that the decline is due to Videorama. We just need a more clear way to explain it.

Jennifer's claim can still be valid if we fill in some of the holes. Brad pointed out one of the holes, which was that Videorama only sold 4000 videos and there's a gap in order to reach the 10,000 decline in video rentals.

Now what can explain the gap?

(E) does the best job because if for every 1 video sold that cannibalized 2, 3 or more video rentals, than the cannibalization effect could be far in excess of 10,000 video rentals.

(A) also helps explain the gap but it's not strong enough. If Videorama rented out more than it sold, it's possible that it sold 4,000 and it rented 5,000. Together, that's 9,000 and so there's still 1,000 that cannot be explained. On the other hand, it's possible that 4,000 was sold but 6,000 was rented. That would reach the 10,000 and this would weaken Brad's argument. However, since it goes both ways it does not definitively weaken the argument...and would only be a "weak" method of weakening the argument.

(B) in a similar manner is "weak" and also is not relevant because it places the explanation on something other than Videorama, ie the other two stores, when clearly the argument is referring to Videorama.
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 14 Dec 2012, 01:11
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shikhar wrote:
Jennifer: Video rental outlets in Centerville together handled 10,000 fewer video rentals in 1994 than in 1993. The decline in rentals was probably due almost entirely to the February 1994 opening of Videorama, the first and only video rental outlet in the area that, in addition to renting videos, also sold them cheaply. Brad: There must be another explanation: as you yourself said, the decline was on the order of 10,000 rentals. Yet Videorama sold only 4,000 videos in 1994. Which of the following, if true, would most seriously weaken the force of the objection that Brad presents to Jennifer's explanation?


A. In 1994 Videorama rented out more videos than it sold.
B. In 1994 two new outlets that rent but that do not sell videos opened in Centerville.
C. Most of the video rental outlets in Centerville rent videos at a discount on certain nights of the week.
D. People often buy videos of movies that they have previously seen in a theater.
E. People who own videos frequently loan them to their friends.


Hi,

The discussion so far has been very good.

The only confusion visible is between options A and E.

Let's first follow our standard approach for the answer:

Brad's argument is that opening of Videorama could not be the explanation for decline in rentals since Videorama sold only 4000 videos against a total decline of 10,000 video rentals.

Prethinking Assumption:

Now, if we try to prethink the assumption in Brad's argument, it looks like this: one video sold should lead to a decline of one (nearly) video rental.

Prethinking Weakener:

Now, a weakener is something which weakens the assumption. Thus, a weakener could be like:
Some movies are rented more than once to the same person in a year. (If this is true, then people who buy these videos will not rent. Thus, every purchase would lead to twice or thrice the amount of decline in rentals)

Other weakener could be the one stated in option E. This statement means that every video purchase should lead to multiple times decline in the number of video rentals.

Therefore, E is the correct answer choice.

Now, coming to option A, please note that it is clearly stated the Videorama is located in the area. Thus, any video rentals by Videorama are counted in the figure for the area. Therefore, the number of video rentals by Videorama does not affect Brad's argument.

Hope this helps :)

Critical Reasoning questions are also asked in the new IR section of GMAT. Click on the below image to access a critical reasoning IR question with detailed approach to such questions.

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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 17 Dec 2012, 04:25
shikhar wrote:
Jennifer: Video rental outlets in Centerville together handled 10,000 fewer video rentals in 1994 than in 1993. The decline in rentals was probably due almost entirely to the February 1994 opening of Videorama, the first and only video rental outlet in the area that, in addition to renting videos, also sold them cheaply. Brad: There must be another explanation: as you yourself said, the decline was on the order of 10,000 rentals. Yet Which of the following, if true, would most seriously weaken the force of the objection that Brad presents to Jennifer's explanation?


A. In 1994 Videorama rented out more videos than it sold.
B. In 1994 two new outlets that rent but that do not sell videos opened in Centerville.
C. Most of the video rental outlets in Centerville rent videos at a discount on certain nights of the week.
D. People often buy videos of movies that they have previously seen in a theater.
E. People who own videos frequently loan them to their friends.


Premise of the argument: "Videorama sold only 4,000 videos in 1994." but "the decline was on the order of 10,000 rentals"
Conclusion of the argument: The decline in rentals was probably not due almost entirely to the February 1994 opening of Videorama

We need to weaken the above argument. Choice E weakens the premise that since it says that though there is a gap of 6000 videos to be accounted for, the gap which represents videos that were not bought can be explained by the fact that they were borrowed from friends who had bought them. That fills the gap and weakens Brad's premise.

Choice A seems close because if videorama handled say, 5000 rentals then the total number of videos handled by videorama becomes 5000+4000 which is 9000. That seems to only strengthen Jennifers argument that the decrease was probably almost entirely due to videorama. But the decline in rental is after including the rentals handled by videorama. So if as in choice A if videorama handled 5000 rentals, the others should have handled 15,000 rentals less. So it doesn't quite weaken Brad's argument as E does because there would be still the gap of 6000..
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 30 Jan 2014, 11:26
Why E? Does that mean one gives the purchased video in month of February to his friends? or does it mean that max videos were purchased in feb month and that they were only shared with friends in feb?

Am I missing something with this logic?
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 30 Jan 2014, 19:49
email2vm wrote:
Why E? Does that mean one gives the purchased video in month of February to his friends? or does it mean that max videos were purchased in feb month and that they were only shared with friends in feb?

Am I missing something with this logic?


Brad says that 10,000 fewer videos were rented but the cheap sale of video rentals by Videorama cannot be responsible for this entire decline because they sold only 4000 videos. So out of these 10,000, it makes sense that 4000 people did not rent the video because they bought them instead but what about the other 6000? Why did they not rent the videos too? So Brad insists that there must be another reason too.
The explanation to Brad's comment can be that the people who buy videos, loan them out to their friends. So every video sold will decreases the number of rentals by not just one but more than one. Hence the entire 10,000 can be explained by the 4000 videos sold.
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 05 Mar 2014, 21:12
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Brad argues that there must be some other explanation that does not have to do with the opening of videorama.

Because of videorama, people were now able to buy videos and rent them to their friends, thereby preventing the friends for renting videos.


On another note, I'm not a big fan of this question since it seems to require a lot of assumptions (as straightforward as they may be)on the reader's part. I'd like to know the source of this question. If it is not a reputed source, I suggest not bothering about the question any more.
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 03 Jan 2018, 10:20
ChrisLele wrote:
Let me do a better job of showing why (A) is not the answer. In doing so, I'll address Charlemagne original explanation.

Sold videos and rented videos are not discrete in terms of who watches the videos. Think of it this way, if I go over to my friend's house and watch a movie, it doesn't matter whether he bought the video or rented the video. I most likely will not rent the movie myself (I've already seen it).

Therefore the argument is not "due to the number of videos rented out by Videorama as opposed to the number of videos sold", but rather to why fewer people are renting videos from Videorama in the first place. 'Sold videos' can thus have a major impact on whether someone rents from Videorama. If I know my buddy Jake bought a cheap copy of Avatar from Videorama, then I am less likely to run down there and rent Avatar. As (E) says, friends are likely to loan videos. I ask Jake he loans me his copy: one fewer person to rent Avatar for Videorama.

Hope that was clearer :).


ChrisLele: Sorry to bring this up after so many days.....but people could have rented the videos in 1993 too. Why just in 1994?
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 03 Jan 2018, 17:40
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ImAnkitKaushik wrote:
ChrisLele wrote:
Let me do a better job of showing why (A) is not the answer. In doing so, I'll address Charlemagne original explanation.

Sold videos and rented videos are not discrete in terms of who watches the videos. Think of it this way, if I go over to my friend's house and watch a movie, it doesn't matter whether he bought the video or rented the video. I most likely will not rent the movie myself (I've already seen it).

Therefore the argument is not "due to the number of videos rented out by Videorama as opposed to the number of videos sold", but rather to why fewer people are renting videos from Videorama in the first place. 'Sold videos' can thus have a major impact on whether someone rents from Videorama. If I know my buddy Jake bought a cheap copy of Avatar from Videorama, then I am less likely to run down there and rent Avatar. As (E) says, friends are likely to loan videos. I ask Jake he loans me his copy: one fewer person to rent Avatar for Videorama.

Hope that was clearer :).


ChrisLele: Sorry to bring this up after so many days.....but people could have rented the videos in 1993 too. Why just in 1994?

I'm not sure if this answers your question, but before Videorama opened in 1994, fewer videos were being sold in the area. That means that if you wanted to watch a video, you probably had to rent it (rather than borrowing a copy that, for example, your friend owned). So yes people were renting videos in both 1993 and 1994. But once Videorama opened, more people started buying videos. Those people could then loan their purchased copies to friends, so those friends would not have to rent as many videos.

I hope that helps!
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 28 Aug 2018, 11:42
VeritasKarishma wrote:
Priyanka2011 wrote:
hey..

The arguement compares rentals - that were less in 1994 than 1993.. with sale of videos by videorama..

so why not bridge the gap why saying videorama rented more than it sold ? - a?
similarly why not b ?


Responding to a pm:

The following is the gist of the argument:

Jennifer: Video rental outlets handled 10,000 fewer video rentals in 1994 than in 1993. The decline was due to opening of Videorama in 1994 that sold videos cheaply.

Brad: Wrong. The decline was 10,000 rentals but Videorama sold only 4,000 videos in 1994.

Question: Which would most seriously weaken Brad's objection?

We have to weaken Brad's objection that Videorama sold only 4000 videos whereas the decline is 10,000 videos.
What can explain that 4000 videos sold by Videorama are responsible for the decline of 10,000 in rentals? 4000 videos sold should be responsible for decline of about 4000 rentals only. But if people lend their videos to family and friends, each video sold could account for 2-3 fewer rentals. Then it is possible that 10,000 fewer people rent the videos. Therefore, (E) weakens Brad's objection and is our answer.

(A) and (B) do not provide an explanation against Brad's objection and hence are not correct.



VeritasKarishma , MartyMurray

Although I marked E as the answer, I am still not clear why A can be eliminated. Lets see it this way:

Brad objects by saying that Videorama sold only 4000 videos whereas the decline is 10,000 videos. So he believes that there must be some other reason. This is what we have to weaken.

Now, option A says, Videorama rented more videos than it sold. It can mean that videorama was able to divert the balance 6000 people from the existing video outlets. When I view the problem in this way, A appears to be the correct choice.

Please help me understand where am I going wrong.

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Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 28 Aug 2018, 14:51
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Prateek176 wrote:
Although I marked E as the answer, I am still not clear why A can be eliminated. Lets see it this way:

Brad objects by saying that Videorama sold only 4000 videos whereas the decline is 10,000 videos. So he believes that there must be some other reason. This is what we have to weaken.

Now, option A says, Videorama rented more videos than it sold. It can mean that videorama was able to divert the balance 6000 people from the existing video outlets. When I view the problem in this way, A appears to be the correct choice.

Please help me understand where am I going wrong.

Thanks


Here's the deal.

I could show you why (A) doesn't work, but really my showing you that is not what you need right now. You could COMPLETELY understand thousands of questions, but, since GMAT Critical Reasoning is not about what you KNOW as much as it is about what you DO and what you SEE, understanding many already existing questions will not be sufficient for getting you to your score goal. So, I think you are better off doing what you have to do until you see why (A) does not work.

At this point in your training, what you need more than explanations is to develop your SKILLS.

You have completely missed some key aspects of what is said in the passage and what is said in (A). Once you see what you have to see, you will completely agree that (A) does not work AT ALL.

So, go back, read the passage again, read the question again, and read choice (A) again, and figure out why choice (A) is completely useless. Take your time, read every word, and do what you have to do until you see what you have to see. That process is how you train to crush Critical Reasoning.
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Re: Jennifer: Video rental outlets in Centerville together handled 10,000  [#permalink]

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New post 29 Aug 2018, 04:49
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Prateek176 wrote:
VeritasKarishma wrote:
Priyanka2011 wrote:
hey..

The arguement compares rentals - that were less in 1994 than 1993.. with sale of videos by videorama..

so why not bridge the gap why saying videorama rented more than it sold ? - a?
similarly why not b ?


Responding to a pm:

The following is the gist of the argument:

Jennifer: Video rental outlets handled 10,000 fewer video rentals in 1994 than in 1993. The decline was due to opening of Videorama in 1994 that sold videos cheaply.

Brad: Wrong. The decline was 10,000 rentals but Videorama sold only 4,000 videos in 1994.

Question: Which would most seriously weaken Brad's objection?

We have to weaken Brad's objection that Videorama sold only 4000 videos whereas the decline is 10,000 videos.
What can explain that 4000 videos sold by Videorama are responsible for the decline of 10,000 in rentals? 4000 videos sold should be responsible for decline of about 4000 rentals only. But if people lend their videos to family and friends, each video sold could account for 2-3 fewer rentals. Then it is possible that 10,000 fewer people rent the videos. Therefore, (E) weakens Brad's objection and is our answer.

(A) and (B) do not provide an explanation against Brad's objection and hence are not correct.



VeritasKarishma , MartyMurray

Although I marked E as the answer, I am still not clear why A can be eliminated. Lets see it this way:

Brad objects by saying that Videorama sold only 4000 videos whereas the decline is 10,000 videos. So he believes that there must be some other reason. This is what we have to weaken.

Now, option A says, Videorama rented more videos than it sold. It can mean that videorama was able to divert the balance 6000 people from the existing video outlets. When I view the problem in this way, A appears to be the correct choice.

Please help me understand where am I going wrong.

Thanks


You missed out on the first line of the argument:
"Video rental outlets in Centerville together handled 10,000 fewer video rentals in 1994 than in 1993."
The number includes the videos rented out by Videorama too. All outlets together rented fewer videos this year. So even if VIdeorama rented out 6000 videos, it is included in the total which is 10,000 lower than 1993 total.
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