Last visit was: 12 Jul 2025, 06:49 It is currently 12 Jul 2025, 06:49
Close
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
Your Progress

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
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
tenaman10
Joined: 08 Nov 2008
Last visit: 06 Jan 2012
Posts: 152
Own Kudos:
1,258
 [59]
Given Kudos: 7
Posts: 152
Kudos: 1,258
 [59]
6
Kudos
Add Kudos
53
Bookmarks
Bookmark this Post
User avatar
aknine
Joined: 07 Jun 2009
Last visit: 30 Aug 2014
Posts: 73
Own Kudos:
99
 [2]
Given Kudos: 9
Posts: 73
Kudos: 99
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
mmphf
Joined: 18 Mar 2010
Last visit: 28 Oct 2012
Posts: 46
Own Kudos:
102
 [4]
Given Kudos: 5
Location: United States
Posts: 46
Kudos: 102
 [4]
3
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
User avatar
ykaiim
Joined: 25 Aug 2007
Last visit: 21 Aug 2012
Posts: 519
Own Kudos:
Given Kudos: 40
WE 1: 3.5 yrs IT
WE 2: 2.5 yrs Retail chain
Posts: 519
Kudos: 5,816
Kudos
Add Kudos
Bookmarks
Bookmark this Post
This question is on Extreme cases. IMO D is correct.

A) Most good cooks do not use extravagantly rich ingredients. [Can be true]
(B) Everyone who enjoys preparing and serving food is a good cook. [An extreme case but can be true]
(C) More good cooks who use extravagantly rich ingredients are big eaters than are good cooks who do not use such ingredients. [Can be true]
(D) There are fewer good cooks who enjoy serving and preparing food than there are good cooks who are big eaters. [Cannot be true as we are not given such facts in the stimulus]
(E) Gourmet cooks, fast-food cooks, and cooks who are health food enthusiasts are all big eaters. [Can be true]
User avatar
gurpreetsingh
Joined: 12 Oct 2009
Last visit: 15 Jun 2019
Posts: 2,273
Own Kudos:
3,857
 [3]
Given Kudos: 235
Status:<strong>Nothing comes easy: neither do I want.</strong>
Location: Malaysia
Concentration: Technology, Entrepreneurship
Schools: ISB '15 (M)
GMAT 1: 670 Q49 V31
GMAT 2: 710 Q50 V35
Products:
Schools: ISB '15 (M)
GMAT 2: 710 Q50 V35
Posts: 2,273
Kudos: 3,857
 [3]
3
Kudos
Add Kudos
Bookmarks
Bookmark this Post
my choice was E but after reading the explanation its D.

E was attractive because we need to look for the omission of the word 'GOOD'. If we miss that, we might chose the wrong answer.
User avatar
mustdoit
Joined: 18 Feb 2010
Last visit: 23 Feb 2011
Posts: 102
Own Kudos:
718
 [3]
Concentration: Finance
Schools:ISB
 Q44  V28 GMAT 2: 620  Q51  V23
Posts: 102
Kudos: 718
 [3]
2
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
gmatcracker2010
Some good cooks are gourmet cooks who pride themselves on always using extravagantly rich ingredients in elaborate recipes. Some good cooks can be characterized as fast-food cooks. They may use rich ingredients as long as the recipes are easy to follow and take little time. Other good cooks are health food enthusiasts, who are concerned primarily with the nutritional value of food. But even though not all good cooks are big eaters, they all enjoy preparing and serving food.
If the information in the passage is true, which one of the following CANNOT be true?

(A) Most good cooks do not use extravagantly rich ingredients.
(B) Everyone who enjoys preparing and serving food is a good cook.
(C) More good cooks who use extravagantly rich ingredients are big eaters than are good cooks who do not use such ingredients.
(D) There are fewer good cooks who enjoy serving and preparing food than there are good cooks who are big eaters.
(E) Gourmet cooks, fast-food cooks, and cooks who are health food enthusiasts are all big eaters.


OA is
CAn somebody please explain the difference between B and D?

My answer is D

last premise states "But even though not all good cooks are big eaters, they all enjoy preparing and serving food".

Lets take example.... there are 100 good cooks

lets take big eaters be 70 as it is given that not all good cooks are big eaters.

All enjoy preparing and serving food so the number will be 100.


Now coming to option D it says

"There are fewer good cooks who enjoy serving and preparing food than there are good cooks who are big eaters".

Obviously not possible due to reasons mentioned above.

Hope this helps...!!!
User avatar
IanStewart
User avatar
GMAT Tutor
Joined: 24 Jun 2008
Last visit: 11 Jul 2025
Posts: 4,141
Own Kudos:
10,614
 [4]
Given Kudos: 97
 Q51  V47
Expert
Expert reply
Posts: 4,141
Kudos: 10,614
 [4]
4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
gurpreetsingh
my choice was E but after reading the explanation its D.

E was attractive because we need to look for the omission of the word 'GOOD'. If we miss that, we might chose the wrong answer.

We know that "not all good cooks are big eaters", or in other words, that 'some good cooks are not big eaters'. E is tempting if you assume that the stem gives an exhaustive list of the types of good cooks, but there's no reason to think that the classification of cooks in the stem is comprehensive. There might be a fourth category of good cook that is never mentioned in the passage: It may be, say, that some good cooks are 'decorative cooks' who only enjoy cooking because they like arranging food artistically on a plate. Further, it may be that these 'decorative cooks' are the only cooks who are not big eaters, while all other cooks are big eaters. So E can be true.

D cannot possibly be true. We're told in the stem that all good cooks enjoy serving food, while not all are big eaters, so the number who enjoy serving food is greater than the number who are big eaters.
User avatar
tryambaks
Joined: 24 Jul 2014
Last visit: 13 Jun 2024
Posts: 70
Own Kudos:
128
 [2]
Given Kudos: 39
Location: India
WE:Information Technology (Computer Software)
Posts: 70
Kudos: 128
 [2]
1
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
tenaman10
Some good cooks are gourmet cooks who pride themselves on always using extravagantly rich ingredients in elaborate recipes. Some good cooks can be characterized as fast-food cooks. They may use rich ingredients as long as the recipes are easy to follow and take little time. Other good cooks are health food enthusiasts, who are concerned primarily with the nutritional value of food. But even though not all good cooks are big eaters, they all enjoy preparing and serving food.

If the information in the passage is true, which one of the following CANNOT be true?

(A) Most good cooks do not use extravagantly rich ingredients.
(B) Everyone who enjoys preparing and serving food is a good cook.
(C) More good cooks who use extravagantly rich ingredients are big eaters than are good cooks who do not use such ingredients.
(D) There are fewer good cooks who enjoy serving and preparing food than there are good cooks who are big eaters.
(E) Gourmet cooks, fast-food cooks, and cooks who are health food enthusiasts are all big eaters.

Okay,
It's been a long time no one posted a response to the question.
I just tried the question today and here is what I think about it

Lets say All good cooks = Gourmet cooks + Fast-food cooks + Health food cooks + OTHER Good cooks
(A) Most good cooks do not use extravagantly rich ingredients. => Gourmet cooks are not most of the lot. Argument does not say anything about Gourmet cooks proportion in the total cook population. So their population could be 80%(in that case it is the most = So CAN BE TRUE) or may be 10% (in that case it would be least=So CAN'T BE TRUE).
(B)Everyone who enjoys preparing and serving food is a good cook. => It is talking about the population as a whole and we do not know any of it.So CAN BE OR CAN'T BE TRUE
(C)More good cooks who use extravagantly rich ingredients are big eaters than are good cooks who do not use such ingredients. =>Again we do not know anything about the proportion of cooks with in COOK POPULATION .So we can not compare them. they could certainly be true. OR could certainly not be true.
(D)There are fewer good cooks who enjoy serving and preparing food than there are good cooks who are big eaters. =>
Well here we go . We do not know about the individual cook population type .But from the last line of the argument "But even though not all good cooks are big eaters, they all enjoy preparing and serving food." => THEY ALL = All good cooks = Gourmet cooks + Fast-food cooks + Health food cooks + OTHER Good cooks
AND This number i.e. THEY ALL > BIG EATER COOKS
And the Option says just the opposite i.e. THEY ALL < BIG EATER COOKS
AND That for 100% CAN NOT BE TRUE
(E) We do not need to think about This option as we have got our answer
avatar
aanchalgmat
Joined: 17 Jan 2015
Last visit: 16 Oct 2016
Posts: 3
Own Kudos:
Given Kudos: 3
GPA: 2.97
WE:Engineering (Computer Software)
Posts: 3
Kudos: 6
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Although I know OA is D, I am still confused between B and D.

D is clearly incorrect.
But I am not able to categorize B under could be true or must be true. And thus feel B is also incorrect.

Stimulus states, If somebody is a good cook --> He/She will enjoy preparing and serving the food.
Thus, contrapositive would be, If He/she doesn't enjoy preparing and serving the food --> He/she is not a good cook [Reverse+Negation]

B option states, Everyone who enjoys preparing and serving the food --> is a good cook [case of Mistaken Reversal]
and Hence this cannot be true.

Please let me know the genuine reason for rejecting B.
User avatar
sayantanc2k
Joined: 14 Dec 2013
Last visit: 09 Dec 2022
Posts: 2,395
Own Kudos:
15,461
 [1]
Given Kudos: 26
Location: Germany
Schools:
GMAT 1: 780 Q50 V47
WE:Corporate Finance (Pharmaceuticals and Biotech)
Expert
Expert reply
Schools:
GMAT 1: 780 Q50 V47
Posts: 2,395
Kudos: 15,461
 [1]
Kudos
Add Kudos
1
Bookmarks
Bookmark this Post
aanchalgmat
Although I know OA is D, I am still confused between B and D.

D is clearly incorrect.
But I am not able to categorize B under could be true or must be true. And thus feel B is also incorrect.

Stimulus states, If somebody is a good cook --> He/She will enjoy preparing and serving the food.
Thus, contrapositive would be, If He/she doesn't enjoy preparing and serving the food --> He/she is not a good cook [Reverse+Negation]

B option states, Everyone who enjoys preparing and serving the food --> is a good cook [case of Mistaken Reversal]
and Hence this cannot be true.

Please let me know the genuine reason for rejecting B.

Option B MUST not be true or false, but it CAN be true or false - the questions asks which one MUST be false.

IF the set of good cook and the set of people who enjoy preparing and serving food are identical, THEN option B is true. Thus option B can be true under certain condition. Hence it cannot be the right answer, because the right answer CANNOT be true under any condition.
User avatar
Gokul20
User avatar
Current Student
Joined: 16 Oct 2019
Last visit: 30 May 2023
Posts: 121
Own Kudos:
Given Kudos: 896
Location: India
GMAT 1: 710 Q49 V36 (Online)
GMAT 2: 720 Q50 V38
GMAT 3: 730 Q50 V38
GPA: 4
Kudos
Add Kudos
Bookmarks
Bookmark this Post
I got this answer right, and was able to analyse thoroughly and comprehensively, and I could answer this with confidence. But my concern is on the timing. Though I get most of the medium-hard level question right (accuracy of ~80-85%), I take too long to get to these answers (approx. 4 to 5 minutes). I know I am quite in the early stages of my preparation(roughly 3rd week in CR), how do I improve the timing on questions? Is it ok the way I am progressing or should do something consciously to get my timing on questions better. Any help would be much appreciated.
User avatar
Mavisdu1017
Joined: 10 Aug 2021
Last visit: 04 Jan 2023
Posts: 361
Own Kudos:
Given Kudos: 226
Posts: 361
Kudos: 43
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello expert,
Although I clearly know D is contradictory with the last sentence, I can not understand why E can be true. In stimulus, all good cooks are categorized into 3 types, and E means all good cooks are big eaters. This is contradictory with the last sentence too.
Can any expert help on E? Thanks in advance.
User avatar
RonTargetTestPrep
User avatar
Target Test Prep Representative
Joined: 19 Jul 2022
Last visit: 07 Nov 2022
Posts: 430
Own Kudos:
Given Kudos: 1
GMAT 1: 800 Q51 V51
Expert
Expert reply
GMAT 1: 800 Q51 V51
Posts: 430
Kudos: 533
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Mavisdu1017
Hello expert,
Although I clearly know D is contradictory with the last sentence, I can not understand why E can be true. In stimulus, all good cooks are categorized into 3 types, and E means all good cooks are big eaters. This is contradictory with the last sentence too.
Can any expert help on E? Thanks in advance.

The red word is where you're going wrong. The passage does mention 3 different categories of 'good cooks', but does NOT indicate that ALL good cooks fit into just those three categories.

The passage just says Some good cooks are in group X. Some good cooks are in group Y. Other good cooks are in group Z.
Given these statements, there could definitely still be good cooks who are not in any of the groups X, Y, or Z.
User avatar
Mavisdu1017
Joined: 10 Aug 2021
Last visit: 04 Jan 2023
Posts: 361
Own Kudos:
Given Kudos: 226
Posts: 361
Kudos: 43
Kudos
Add Kudos
Bookmarks
Bookmark this Post
RonTargetTestPrep
Mavisdu1017
Hello expert,
Although I clearly know D is contradictory with the last sentence, I can not understand why E can be true. In stimulus, all good cooks are categorized into 3 types, and E means all good cooks are big eaters. This is contradictory with the last sentence too.
Can any expert help on E? Thanks in advance.

The red word is where you're going wrong. The passage does mention 3 different categories of 'good cooks', but does NOT indicate that ALL good cooks fit into just those three categories.

The passage just says Some good cooks are in group X. Some good cooks are in group Y. Other good cooks are in group Z.
Given these statements, there could definitely still be good cooks who are not in any of the groups X, Y, or Z.
RonTargetTestPrep sorry expert, doesn’t “other” mean “the rest part of the whole”? So I think the sum of these 3 parts are the whole.
avatar
Abolnasr
Joined: 10 Jul 2023
Last visit: 14 Aug 2024
Posts: 37
Own Kudos:
Given Kudos: 19
Posts: 37
Kudos: 7
Kudos
Add Kudos
Bookmarks
Bookmark this Post
D is the only answer choice that is MATHEMATICALLY impossible
User avatar
VerbalBot
User avatar
Non-Human User
Joined: 01 Oct 2013
Last visit: 04 Jan 2021
Posts: 18,437
Own Kudos:
Posts: 18,437
Kudos: 953
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Moderators:
GMAT Club Verbal Expert
7349 posts
GMAT Club Verbal Expert
235 posts