GMAT Question of the Day - Daily to your Mailbox; hard ones only

 It is currently 23 Sep 2018, 07:27

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# All of John's friends say they know

Author Message
TAGS:

### Hide Tags

Kaplan GMAT Instructor
Joined: 21 Jun 2010
Posts: 71
Location: Toronto
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

08 Jul 2010, 12:23
E looks fine to me but at the same time A can also be a contender. Expert pls advise what is wrong with A?

Hi,

we can't infer anything about smokers themselves lying. We can infer that some people who say they know healthy heavy smokers are lying.
Manager
Joined: 24 Jan 2010
Posts: 103
Location: India
Schools: ISB
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

08 Jul 2010, 19:57
Testluv wrote:
E looks fine to me but at the same time A can also be a contender. Expert pls advise what is wrong with A?

Hi,

we can't infer anything about smokers themselves lying. We can infer that some people who say they know healthy heavy smokers are lying.

Thanks Testluv . Now it is clear to me
_________________

_________________
If you like my post, consider giving me a kudos. THANKS!

Manager
Joined: 08 Jan 2010
Posts: 141
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

04 Aug 2010, 00:47
alexBLR thanks ...........good explanation .....I was floored and went for B.....
Manager
Joined: 02 Jan 2010
Posts: 111
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

13 Sep 2010, 02:42
I went with 'C'..Didnt understand the 'unique' part.Now its clear..
_________________

Regards
Ganesh
Class of 2012
Great Lakes Institute of Management
http://greatlakes.edu.in

Manager
Joined: 11 May 2010
Posts: 180
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

22 Sep 2010, 20:16
I went for D, but I guess E would be stronger to make John not unique. Thanks
Intern
Joined: 23 May 2010
Posts: 21
Location: United States (KS)
Concentration: Finance
GMAT 1: 720 Q50 V38
GPA: 3.95
WE: Engineering (Aerospace and Defense)
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

01 Oct 2010, 14:29
E seems more reasonable than D, because for John not to be unique amongst his friends only one needs to not be telling the truth (i.e. "Some" is more reasonable than the more extreme "Most"). . .so E.
Manager
Joined: 30 Nov 2010
Posts: 228
Schools: UC Berkley, UCLA
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

03 Dec 2010, 08:40
I don't fully understand the difference b/n some and most. Some could mean half, less than half or more than half most means definitely more than half. Am I right? And if that is the case how would one be able to tell the difference between the two choices?
_________________

Thank you for your kudoses Everyone!!!

"It always seems impossible until its done."
-Nelson Mandela

Veritas Prep GMAT Instructor
Joined: 16 Oct 2010
Posts: 8288
Location: Pune, India
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

03 Dec 2010, 12:51
1
1
mariyea wrote:
I don't fully understand the difference b/n some and most. Some could mean half, less than half or more than half most means definitely more than half. Am I right? And if that is the case how would one be able to tell the difference between the two choices?

Some means 'at least 1'.
Most means 'greatest quantity'.
e.g. He got the most votes.
If there were 3 people, he could have had 40 votes. So it isn't necessarily more than half. Just 'any majority'.
Most of his friends would imply more than 50% since there will be two groups only - his friends who are telling the truth and his friends who are not telling the truth.

We can say that at least 1 of his friends is lying (so that he is not unique). There is no reason to say that more than 50% of his friends are lying.
Though, ambiguous question according to GMAT standards. I wouldn't worry about it.
_________________

Karishma
Veritas Prep GMAT Instructor

GMAT self-study has never been more personalized or more fun. Try ORION Free!

Manager
Joined: 30 Nov 2010
Posts: 228
Schools: UC Berkley, UCLA
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

06 Dec 2010, 06:34
VeritasPrepKarishma wrote:
mariyea wrote:
I don't fully understand the difference b/n some and most. Some could mean half, less than half or more than half most means definitely more than half. Am I right? And if that is the case how would one be able to tell the difference between the two choices?

Some means 'at least 1'.
Most means 'greatest quantity'.
e.g. He got the most votes.
If there were 3 people, he could have had 40 votes. So it isn't necessarily more than half. Just 'any majority'.
Most of his friends would imply more than 50% since there will be two groups only - his friends who are telling the truth and his friends who are not telling the truth.

We can say that at least 1 of his friends is lying (so that he is not unique). There is no reason to say that more than 50% of his friends are lying.
Though, ambiguous question according to GMAT standards. I wouldn't worry about it.

That was very helpful Karishma! Thank you
_________________

Thank you for your kudoses Everyone!!!

"It always seems impossible until its done."
-Nelson Mandela

Manager
Joined: 24 Aug 2010
Posts: 75
All of John's friends say they know someone who has smoked  [#permalink]

### Show Tags

Updated on: 05 Jun 2013, 00:22
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) Smoking 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.

Originally posted by aimkp on 17 Dec 2010, 07:07.
Last edited by Zarrolou on 05 Jun 2013, 00:22, edited 1 time in total.
Edited the question.
Kaplan GMAT Instructor
Joined: 21 Jun 2010
Posts: 146
Location: Toronto
Re: need help in CR to sort out doubt ??  [#permalink]

### Show Tags

17 Dec 2010, 12:33
aimkp wrote:
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) Smoking 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.

Hi!

Here we have an inference question - we're looking for a conclusion that MUST be true based on one or more of the statements in the stimulus.

Inference stimuli are not arguments (i.e. they don't contain evidence, a conclusion and rely on assumptions) - they're usually just a loose collection of facts. Accordingly, it's very difficult to predict the answer to an inference question. Instead, we evaluate each choice, asking if it MUST be true.

Paraphrasing the stimulus:

All John's friends make a claim; John can't make the same claim; it's certain that some of his friends can't as well.

To the choices:

A) Assuming the first word should be "smokers" - no info about what smokers say about their own habits - outside the scope, eliminate A.

B) People "often"... as soon as you see the word "often", we know that B is too extreme. We can't extrapolate about what often happens based on a small sample size. In general, beware of extreme answers on inference questions.

C) The stimulus actually tells us that some of John's friends are in the same position as John, i.e. they can't really make the claim. (C), therefore, must be false - eliminate.

D) We know that John isn't unique, but "most" is too extreme - eliminate (D).

E) Perfect! If John isn't unique among his friends in not being able to make the claim, but ALL of his friends have made it, then SOME of them must be lying - choose (E)!
Intern
Joined: 23 Dec 2010
Posts: 2
Re: need help in CR to sort out doubt ??  [#permalink]

### Show Tags

26 Dec 2010, 16:05
To skovinsky,

My ans is D. Would you explain a little bit why can't it be D?

From my view, What if John is really unique, would the ans is D?
Moreover, the question state quite clear that all of his friends know sbd smoke hard but still healthy.
Since the question is extreme, our answer should extreme too.

thanet
Retired Moderator
Status: 2000 posts! I don't know whether I should feel great or sad about it! LOL
Joined: 04 Oct 2009
Posts: 1277
Location: Peru
Schools: Harvard, Stanford, Wharton, MIT & HKS (Government)
WE 1: Economic research
WE 2: Banking
WE 3: Government: Foreign Trade and SMEs
Re: need help in CR to sort out doubt ??  [#permalink]

### Show Tags

26 Dec 2010, 18:38
Thanet wrote:
To skovinsky,

My ans is D. Would you explain a little bit why can't it be D?

From my view, What if John is really unique, would the ans is D?
Moreover, the question state quite clear that all of his friends know sbd smoke hard but still healthy.
Since the question is extreme, our answer should extreme too.

thanet

+1 E

Cannot be D because the argument mentions "...he is not unique among his friends in this respect". In this sense, probably there is only one of his friends who is providing wrong information. Thefore, you cannot say that MOST of his friends are not telling the truth.
_________________

"Life’s battle doesn’t always go to stronger or faster men; but sooner or later the man who wins is the one who thinks he can."

My Integrated Reasoning Logbook / Diary: http://gmatclub.com/forum/my-ir-logbook-diary-133264.html

GMAT Club Premium Membership - big benefits and savings

Manager
Joined: 12 Sep 2010
Posts: 234
Concentration: Healthcare, General Management
Re: need help in CR to sort out doubt ??  [#permalink]

### Show Tags

26 Dec 2010, 21:50
Good explanation.

Posted from GMAT ToolKit
Director
Joined: 21 Dec 2010
Posts: 511
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

04 May 2011, 04:16
'he is not unique among his friends in this respect.' this statement is the difference between D and E .D can not be inferred from this statement alone , 'most' of john's friends don't have to be different from john to make him 'not unique'.

if only 1 friend is like him , than he is not unique .hence E
_________________

What is of supreme importance in war is to attack the enemy's strategy.

VP
Status: There is always something new !!
Affiliations: PMI,QAI Global,eXampleCG
Joined: 08 May 2009
Posts: 1096
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

05 May 2011, 08:21
In the group there are some more people apart from John who also don't know such a person.
Thus E fits in perfectly.
_________________

Visit -- http://www.sustainable-sphere.com/
Promote Green Business,Sustainable Living and Green Earth !!

Director
Joined: 21 Dec 2010
Posts: 511
Re: need help in CR to sort out doubt ??  [#permalink]

### Show Tags

03 Jul 2011, 00:44
that was straight forward . all you need to do is to think in terms of a set or venn diagram
_________________

What is of supreme importance in war is to attack the enemy's strategy.

Retired Moderator
Joined: 20 Dec 2010
Posts: 1868
Re: need help in CR to sort out doubt ??  [#permalink]

### Show Tags

03 Jul 2011, 10:54
2
aimkp wrote:
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) Smoking 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.

This question is actually not testing our logical thinking so much as it is testing our comfort level in English.

John does not know anyone like that and it is quite certain that he is not unique among his friends in this respect.
<=>
John does not know anyone like that and it is also true that John is not the only one, who doesn't know any such person, among his friends.
_________________
Manager
Status: ==GMAT Ninja==
Joined: 08 Jan 2011
Posts: 211
Schools: ISB, IIMA ,SP Jain , XLRI
WE 1: Aditya Birla Group (sales)
WE 2: Saint Gobain Group (sales)
Re: need help in CR to sort out doubt ??  [#permalink]

### Show Tags

04 Jul 2011, 11:06
fluke wrote:
aimkp wrote:
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) Smoking 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.

This question is actually not testing our logical thinking so much as it is testing our comfort level in English.

John does not know anyone like that and it is quite certain that he is not unique among his friends in this respect.
<=>
John does not know anyone like that and it is also true that John is not the only one, who doesn't know any such person, among his friends.

Dear Fluke
you nailed it man
even i misses this importance of this 'Unique' word

Thanks god you literally printed my thoughts over here
_________________

WarLocK
_____________________________________________________________________________
The War is oNNNNNNNNNNNNN for 720+
see my Test exp here http://gmatclub.com/forum/my-test-experience-111610.html
do not hesitate me giving kudos if you like my post.

Senior Manager
Joined: 17 May 2010
Posts: 253
GMAT 1: 710 Q47 V40
Re: All of John s friends say they know someone who has smoked  [#permalink]

### Show Tags

22 Jul 2011, 17:50
That was a toughie. I will go with E though.
S1: ALL of John's friends know someone who smokes 40cigs a day and is fit.
S2: John does not anyone like that AND is CERTAIN that he is not alone among his friends in that aspect.

This implies that there are some friends who are lying. Otherwise John would not be CERTAIN that he is not alone.
_________________

If you like my post, consider giving me KUDOS!

Re: All of John s friends say they know someone who has smoked &nbs [#permalink] 22 Jul 2011, 17:50

Go to page   Previous    1   2   3    Next  [ 60 posts ]

Display posts from previous: Sort by

# All of John's friends say they know

## Events & Promotions

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.