Subatomic particles : GMAT Verbal Section
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# Subatomic particles

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29 Mar 2004, 21:31
Ok guys, here is another one for you ponder. Just a quick note: I truly believe that discussions bring the best in all of us. From a previous post, I must agree with Aspire, Paul and Anan are invaluable members of this site.

Ok, now to the CR

If quarks are the smallest subatomic particles in the universe, then gluons are needed to hold quarks together. Since gluons are needed to hold quarks together, it follows that quarks are the smallest subatomic particles in the universe.

The logic in the above is most nearly parallel by which of the following?

A) If the library has a good French literature collection, it will contain a copy of Les Conquerants by Malraux. The library does not contain a copy of Les Conquerants; therefore the library has a good French literature collection.

B) If there is a man-on-the-moon, the moon must be made of green cheese for him to eat. There is a man-on-the-moon, so the moon is made of green cheese.

C) Either helium or hydrogen is the lightest element of the periodic table. Helium is not the lightest element of the periodic table, so hydrogen must be the lightest element of the periodic table.

D) If Susan is taller than Bob, and if Bob is taller than Elaine, then if Susan is taller than Bob, Susan is also taller than Elaine

E) Whenever it rains, the streets get wet. The streets are not wet. Therefore, it has not rained.
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29 Mar 2004, 21:46
the original argument is like If A, then B. Since B then A.
only E has similar structure. If A , then B. Not B then not A.

I agree with lvb9th about Anand and Paul.

cheers.
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30 Mar 2004, 04:27
I will keep my fingers crossed. I will choose B.

The statement has faulty logic .
C D E have correct logic.
A has a faulty logic but is not parallel to the stem.
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30 Mar 2004, 05:35
I would pick E..........I think B would be correct if the second statement said,"Since the moon is made of green cheese, there is a man on the moon........"............wotsay Anandnk??
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30 Mar 2004, 06:43
Hello, well my choice would be E. Mbamantra explained it very well
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Paul

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30 Mar 2004, 07:45
Logic in the question

If A, then B
B
therefore A.

A faulty lagic indeed.

Let us take choice B

If A, then B
B
therefore A

A similar fallacy is committed in choice B

Let us take E

If A then B
NOT A
Therefore, NOT B

A fallacy, nonetheless, is comitted by E, but a different kind
compared to the question stem.

Thus, I would choose B
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30 Mar 2004, 08:08
anandnk wrote:

A has a faulty logic but is not parallel to the stem
Thus, I would choose B

In B, the fallacy is:
If A, then B
Since A then B (and not vice versa like in original premise)
But anyhow, B does have a fallacy

Just to add that A is wrong because it is not a fallacy, it is a contradiction
E is logically correct and so is C and D
I think you are right on this one Kpadma and Anandnk
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Paul

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30 Mar 2004, 08:10

In Choice B, The LOGIC is as follows:

If A, then B
A So B

NOT

if A , then B
B therefore A...

D and E come close.. But Picked E..Although my gut feeling says D
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30 Mar 2004, 09:19
I would go by E.
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30 Mar 2004, 20:47
Sorry guys, I made a FATAL error while typing. Choice A should state "The library does contain". My bad!
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30 Mar 2004, 21:05
lvb9th wrote:
Sorry guys, I made a FATAL error while typing. Choice A should state "The library does contain". My bad!

Hehe, the question is so much simpler now. I think that you also inderectly and perhaps unintentionally gave the answer
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30 Mar 2004, 22:53
Paul wrote:
lvb9th wrote:
Sorry guys, I made a FATAL error while typing. Choice A should state "The library does contain". My bad!

Hehe, the question is so much simpler now. I think that you also inderectly and perhaps unintentionally gave the answer

lol....Yes
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31 Mar 2004, 05:08
Well then A is the answer as only A and B contain logical errors are A comes close now than B.
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31 Mar 2004, 05:23
monarc wrote:

In Choice B, The LOGIC is as follows:

If A, then B
A So B

NOT

if A , then B
B therefore A...

D and E come close.. But Picked E..Although my gut feeling says D

I didn't real the answer choice properly. You are correct.
After the change, the answer is A
31 Mar 2004, 05:23
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