All of John's friends say they know someone who has smoked : GMAT Critical Reasoning (CR)
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# All of John's friends say they know someone who has smoked

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All of John's friends say they know someone who has smoked [#permalink]

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16 Aug 2004, 06:40
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10. All of John's friends say they know someone who has smoked 40 cigarettes a day for the past 40 years and yet who is really fit and well. John does not know anyone like that and it is quite certain that he is not unique among his friends in this respect. If the statements in the passage are true, then which one of the following must also be true?

(A) Smokers often lie about how much they smoke.
(B) People often knowingly exaggerate without intending to lie.
(C) All John's friends know the same lifelong heavy smoker.
(D) Most of John's friends are not telling the truth.
(E) Some of John's friends are not telling the truth.

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16 Aug 2004, 06:48
I think the answer is is E

all friends say they know "someone who smokes and is fit"

John knows that there are some friends who dont know "anyone who smokes and is fit."

hence some friends are lying.

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16 Aug 2004, 08:35
E yes.

All of John's friend know a fact and John and some of his friend do not know about this. It means that some of the friends are lying.
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16 Aug 2004, 11:52
I'll vote for C.
Based on the passage, I think John is the smoker here.

If Johin is the smoker here,his friends obviously know him.
Therfore,
"someone who has smoked 40 cigarettes a day for the past 40 years and yet who is really fit and well" is satisfied.

Now," John does not know anyone like that ".
This is because he himself is the smoker.

Can this be the soultion.
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16 Aug 2004, 13:06
If C, then John should know the king smoker (especially when all of his friends knew it). Also, it wont be John himself as John will know that himself.

Between D and E, E is better and makes the case stronger.
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16 Aug 2004, 16:44
E and C are possible. The stimulus says his John's friends know some
heavy smoker who has been smoking for the past 40 years. But that
does not nescessarily mean John knows that smoker ! It's an assumption
to make if you chose (E).
For instance, his friends might know Mary - someone who smoked 40 cigarettes
a day for the past 40 years. But that doesn't nescessarily mean John has to know
Mary !
C for me.
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16 Aug 2004, 19:08
ywilfred wrote:
E and C are possible. The stimulus says his John's friends know some
heavy smoker who has been smoking for the past 40 years. But that
does not nescessarily mean John knows that smoker ! It's an assumption
to make if you chose (E).
For instance, his friends might know Mary - someone who smoked 40 cigarettes
a day for the past 40 years. But that doesn't nescessarily mean John has to know
Mary !
C for me.

Heres the explanation for E...

ALL Johns friends SAY they know a heavy smoker.
John DOES NOT know a heavy smoker.
John is not unique in this aspect (can be reread as "Atleast 1 of Johns friends is not tellnig the truth) - E..
16 Aug 2004, 19:08
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