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# 1000 CR question- must be true type

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Manager
Joined: 14 Dec 2010
Posts: 174
Location: India
Concentration: Technology, Entrepreneurship
GMAT 1: 680 Q44 V39
Re: 1000 CR question- must be true type [#permalink]

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04 Feb 2011, 00:16
I went with D because of the prompt, which says 'Some of those people who keep journals are artists etc.' So some of those who keep journals are not artists etc.
Intern
Joined: 04 Feb 2011
Posts: 32
Re: 1000 CR question- must be true type [#permalink]

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04 Feb 2011, 17:11
Pkit wrote:
First of all, 1000 series have multiple mistakes in answer choices, so don't be shy to think logically and prove your answer choice.

Let me try.

The main statement is: Next generations WILL hear ALL who keep journals. - it is strong statement and narrows down the scope of argument.
Paraphrase it: If you have a journal than next generations will hear you, if you don't they will not hear you.
Among those who keep journals are: true artists, humorous observers and nsufferable egotists.
Ok so far?

Lets see how can we eliminate the answer choices.

All those who keep a journal will be heard by the next generation. Some of these journal writers are true artists, others humorous observers of the commonplace, and still others insufferable egotists who feel compelled to record their every thought.
If the statements above are true, which one of the following must be true?

Looking over this thread a bit more generally I think most people who doesn't believe in C are mostly forgetting one thing: the prompt asks you to identify a statement that MUST BE TRUE, and not MAY BE TRUE.

Pkit wrote:
(A) Not all of those who are humorous observers of the commonplace will be heard by the next generation. - false, as we know that "If you have a journal than next generations will hear you, if you don't they will not hear you "
This statement may be true. Since some observers write journals while some do not, the ones who do not write may not be heard by the next generation. However this statement doesn't have to be true. For example, if all observers write journals then all of them will be heard. In another scenario, if even some observers do not write journals, all of them may still be heard for other reasons (this is not constrained anywhere in the prompt)
Pkit wrote:
(B) Everyone who will be heard by the next generation keeps a journal. - it this trick, it is reversed statement that is not necessarily true. Too strong, "everyone"
Sure. A→B doesn't imply B→A...this is a basic logic tool that everybody must know.
Pkit wrote:
(C) The next generation will hear both insufferable egotists and true artists. - wou really ?! what if they don't have any journal? Observe that official answer choice is wrong here.
In the prompt we already know that among the ones who write journals there are some egoists and some artists. Those people will inevitably be heard. Therefore this statement must be true.
Pkit wrote:
(D) Some of those who keep journals are not true artists, humorous observers of the commonplace, or insufferable egotists. yes! bingo. Remember the statement "Among those who keep journals are: true artists, humorous observers and nsufferable egotists." of course there are other people who keep journals.
This statement may be true. Since the prompt lists only 3 types of people it means there may be other people who write journals too. But...there doesn't have to be. Therefore this statement doesn't have to be true.
Pkit wrote:
(E) The next generation will bear some of those who are true artists but not all of them. false, as we know that "If you have a journal than next generations will hear you, if you don't they will not hear you "

Where does the verb "bear" come from? This statement is out of context.
Manager
Joined: 05 Jul 2010
Posts: 169
Re: 1000 CR question- must be true type [#permalink]

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04 Feb 2011, 19:05
In my opinion B and D are very close. B says everyone, but if you see the argument, it says All of those who keep journal, so basically all of those = everyone.

I see Pkit has a strong point too.
Intern
Joined: 14 Apr 2010
Posts: 30
Re: 1000 CR question- must be true type [#permalink]

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18 Feb 2011, 04:11
Clearly C)
Answer D) is wrong because "SOME" from a pure logic standpoint can include ALL as "SOME" is a logical opposite of "NONE".

Hope it helps.

Thanks,
-v
Manager
Joined: 28 Sep 2011
Posts: 69
Re: 1000 CR question- must be true type [#permalink]

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22 Oct 2011, 17:36
PTK wrote:
First of all, 1000 series have multiple mistakes in answer choices, so don't be shy to think logically and prove your answer choice.

Let me try.

The main statement is: Next generations WILL hear ALL who keep journals. - it is strong statement and narrows down the scope of argument.
Paraphrase it: If you have a journal than next generations will hear you, if you don't they will not hear you.
Among those who keep journals are: true artists, humorous observers and nsufferable egotists.
Ok so far?

Lets see how can we eliminate the answer choices.

All those who keep a journal will be heard by the next generation. Some of these journal writers are true artists, others humorous observers of the commonplace, and still others insufferable egotists who feel compelled to record their every thought.
If the statements above are true, which one of the following must be true?
(A) Not all of those who are humorous observers of the commonplace will be heard by the next generation. - false, as we know that "If you have a journal than next generations will hear you, if you don't they will not hear you "
(B) Everyone who will be heard by the next generation keeps a journal. - it this trick, it is reversed statement that is not necessarily true. Too strong, "everyone"
(C) The next generation will hear both insufferable egotists and true artists. - wou really ?! what if they don't have any journal? Observe that official answer choice is wrong here.
(D) Some of those who keep journals are not true artists, humorous observers of the commonplace, or insufferable egotists. yes! bingo. Remember the statement "Among those who keep journals are: true artists, humorous observers and nsufferable egotists." of course there are other people who keep journals.
(E) The next generation will bear some of those who are true artists but not all of them. false, as we know that "If you have a journal than next generations will hear you, if you don't they will not hear you "

I've written elsewhere that your reasoning for this question may not be correct. Please check this : tough-cr-86874.html#p985063
Intern
Joined: 16 Dec 2012
Posts: 5
Location: United States
GMAT 1: 610 Q34 V41
GMAT 2: 620 Q49 V25
GPA: 3.25
Re: 1000 CR question- must be true type [#permalink]

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17 Nov 2013, 13:47
+1 C
Statement says:
1)All who write journals will be heard later
2) insufferable egotists, true artists & ...write journals in a different manner
=> All those guys who write ( insufferable egotists, true artists & ..) will be heard

So C is a Must be True or Inference answer (I don't know the difference between these two question types).
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Joined: 01 Oct 2013
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Re: 1000 CR question- must be true type [#permalink]

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18 Feb 2016, 04:57
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Re: 1000 CR question- must be true type   [#permalink] 18 Feb 2016, 04:57

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