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theprof
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Are logic questions still tested in the GMAT 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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Are logic questions still tested in the GMAT 24 Jun 2009, 11:07
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E is the only logical conclusions that can be drawn? What is OA?
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Are logic questions still tested in the GMAT 24 Jun 2009, 15:27
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OA is A

https://www.urch.com/forums/gmat-critica ... ammas.html
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GMATaddict
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Are logic questions still tested in the GMAT 25 Jun 2009, 18:23
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theprof
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.
Show more

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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Are logic questions still tested in the GMAT 25 Jun 2009, 18:25
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theprof
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.
Show more

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.



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Critical Reasoning (CR) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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