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Are logic questions still tested in the GMAT

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New post 24 Jun 2009, 08:25
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Hi all. I'm using a testprep book from Petersons. In it, the following question came up

Which of the following conclusions can be deduced from the two statements below?

Some Alphas are not Gammas
All Betas are Gammas

A) Some Alphas are not Betas
B) No Gammas are Alphas
C) All Gammas are Betas
D) All Alphas are Gammas
E) Some Alphas are Gammas

Are these logic based questions tested on the GMAT? I've only seen them in this book so far.

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Re: Are logic questions still tested in the GMAT  [#permalink]

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New post 24 Jun 2009, 11:07
E is the only logical conclusions that can be drawn? What is OA?
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New post 24 Jun 2009, 15:27
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Re: Are logic questions still tested in the GMAT  [#permalink]

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New post 25 Jun 2009, 18:23
theprof wrote:
Hi all. I'm using a testprep book from Petersons. In it, the following question came up

Which of the following conclusions can be deduced from the two statements below?

Some Alphas are not Gammas
All Betas are Gammas

A) Some Alphas are not Betas
B) No Gammas are Alphas
C) All Gammas are Betas
D) All Alphas are Gammas
E) Some Alphas are Gammas

Are these logic based questions tested on the GMAT? I've only seen them in this book so far.


I think I would go with (A), it is the only sure conclusion we could make.

B - Can't conclude this, original info leaves open the possibility that some A is also G.
C - No, reversed logic.
D - This is the logical opposite of the original info, & is therefore incorrect.
E - This is an attractive answer, but we can't conclude this one way or another. Maybe some A is G, but no A fits into the sub-category B.
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Re: Are logic questions still tested in the GMAT  [#permalink]

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New post 25 Jun 2009, 18:25
GMATaddict wrote:
theprof wrote:
Hi all. I'm using a testprep book from Petersons. In it, the following question came up

Which of the following conclusions can be deduced from the two statements below?

Some Alphas are not Gammas
All Betas are Gammas

A) Some Alphas are not Betas
B) No Gammas are Alphas
C) All Gammas are Betas
D) All Alphas are Gammas
E) Some Alphas are Gammas

Are these logic based questions tested on the GMAT? I've only seen them in this book so far.


I think I would go with (A), it is the only sure conclusion we could make.

B - Can't conclude this, original info leaves open the possibility that some A is also G.
C - No, reversed logic.
D - This is the logical opposite of the original info, & is therefore incorrect.
E - This is an attractive answer, but we can't conclude this one way or another. Maybe some A is G, but no A fits into the sub-category B.


I think another logic flaw of choice E is that it excludes the possibility that 'ALL alphas are NOT gammas'. IF ALL alphas are NOT gammas, then it is also true that SOME alphas are not gammas; these two possibilities are not mutually exclusive.

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: Are logic questions still tested in the GMAT &nbs [#permalink] 25 Jun 2009, 18:25
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