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

It is currently 16 Oct 2018, 09:44

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

A low-calorie, low-fat, high-protein diet has been shown to assist in

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Retired Moderator
User avatar
Joined: 06 Jul 2014
Posts: 1243
Location: Ukraine
Concentration: Entrepreneurship, Technology
GMAT 1: 660 Q48 V33
GMAT 2: 740 Q50 V40
GMAT ToolKit User Premium Member
A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 29 Aug 2015, 03:36
6
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

63% (01:53) correct 37% (02:09) wrong based on 422 sessions

HideShow timer Statistics

A low-calorie, low-fat, high-protein diet has been shown to assist in increasing longevity. The average life expectancy among the Jani community in Ambatia is significantly higher than it is among any other community in the country. The Jani community is located in a remote, secluded area, and its only contact with the outside world is a monthly delivery of groceries from the nearest town unless the weather is too bad for the journey. Members of the community grow most of their food, as well as goats and chickens, which they occasionally eat. This essentially imposes a low-calorie, low-fat, high protein diet. Clearly, these circumstances account for the longer lives of the Jani community members.

Which of the following, if true, casts the most doubt on the above conclusion?


A) Many people who live in the Jani community joined it after the age of 40 or after retirement.

B) The Jani community has less than a thousand members.

C) In Ambatia, all medical expenses are paid for by the government, so that personal income does not affect the quality of health care a person receives.

D) The life expectancy in Ambatai is 76 years, compared to 84 years in the Jani community.

E) The oldest person in Country X is 97 years old, and she is not a member of the Jani community.

_________________

Simple way to always control time during the quant part.
How to solve main idea questions without full understanding of RC.
660 (Q48, V33) - unpleasant surprise
740 (Q50, V40, IR3) - anti-debrief ;)

Retired Moderator
User avatar
Joined: 06 Jul 2014
Posts: 1243
Location: Ukraine
Concentration: Entrepreneurship, Technology
GMAT 1: 660 Q48 V33
GMAT 2: 740 Q50 V40
GMAT ToolKit User Premium Member
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 21 Oct 2015, 04:10
1
Harley1980 wrote:
A low-calorie, low-fat, high-protein diet has been shown to assist in increasing longevity. The average life expectancy among the Jani community in Ambatia is significantly higher than it is among any other community in the country. The Jani community is located in a remote, secluded area, and its only contact with the outside world is a monthly delivery of groceries from the nearest town unless the weather is too bad for the journey. Members of the community grow most of their food, as well as goats and chickens, which they occasionally eat. This essentially imposes a low-calorie, low-fat, high protein diet. Clearly, these circumstances account for the longer lives of the Jani community members.

Which of the following, if true, casts the most doubt on the above conclusion?

A) Many people who live in the Jani community joined it after the age of 40 or after retirement.
B) The Jani community has less than a thousand members.
C) In Ambatia, all medical expenses are paid for by the government, so that personal income does not affect the quality of health care a person receives.
D) The life expectancy in Ambatai is 76 years, compared to 84 years in the Jani community.
E) The oldest person in Country X is 97 years old, and she is not a member of the Jani community.


Hello prue262

B is wrong because the size of the community does not have an influence on the conclusion.

Premise: People in Ambatia live very log lives [because - conclusion] they a low-calorie, low-fat, high protein diet.

We need to weak this conclusion so we should find the answer in which we will have other reasons for the long life of members of the community.
The answer A says that many people joined the community in their old ages so we have a selective bias here. The main reason of long life possible not depends on the diet but exists because old people choose this place for a living.

We can make an analogy with a retirement home.

A retirement home have very high longevity because this house propose only vegetarian menu for its habitants. This is a wrong conclusion because longevity in this place induced by specific of this place and not by a vegetarian menu.
_________________

Simple way to always control time during the quant part.
How to solve main idea questions without full understanding of RC.
660 (Q48, V33) - unpleasant surprise
740 (Q50, V40, IR3) - anti-debrief ;)

Retired Moderator
User avatar
S
Joined: 18 Sep 2014
Posts: 1133
Location: India
GMAT ToolKit User Premium Member Reviews Badge
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 21 Oct 2015, 13:46
1
1
A low-calorie, low-fat, high-protein diet has been shown to assist in increasing longevity. The average life expectancy among the Jani community in Ambatia is significantly higher than it is among any other community in the country. The Jani community is located in a remote, secluded area, and its only contact with the outside world is a monthly delivery of groceries from the nearest town unless the weather is too bad for the journey. Members of the community grow most of their food, as well as goats and chickens, which they occasionally eat. This essentially imposes a low-calorie, low-fat, high protein diet. Clearly, these circumstances account for the longer lives of the Jani community members.

Which of the following, if true, casts the most doubt on the above conclusion?

A) Many people who live in the Jani community joined it after the age of 40 or after retirement. (Weakener since we cannot say they developed their heath developed since they received such diet or grown in that area.)
B) The Jani community has less than a thousand members.(OFS)
C) In Ambatia, all medical expenses are paid for by the government, so that personal income does not affect the quality of health care a person receives.(Only medical expenses are covered and even if personal income does not affect the health quality, this ells us nothing about their longer life reason.)
D) The life expectancy in Ambatai is 76 years, compared to 84 years in the Jani community.(Strengthener.Opposite)
E) The oldest person in Country X is 97 years old, and she is not a member of the Jani community. OFS since we have no info regarding country X
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 6956
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 11 Jun 2018, 05:01
A low-calorie, low-fat, high-protein diet has been shown to assist in increasing longevity. The average life expectancy among the Jani community in Ambatia is significantly higher than it is among any other community in the country. The Jani community is located in a remote, secluded area, and its only contact with the outside world is a monthly delivery of groceries from the nearest town unless the weather is too bad for the journey. Members of the community grow most of their food, as well as goats and chickens, which they occasionally eat. This essentially imposes a low-calorie, low-fat, high protein diet. Clearly, these circumstances account for the longer lives of the Jani community members.

Which of the following, if true, casts the most doubt on the above conclusion?


A. Many people who live in the Jani community joined it after the age of 40 or after retirement.
Looks good...If people have stayed out for 40years and still have high life-expectancy then the environment in which Jani community is staying may not be the reason. So that means logic of they staying secluded is not true after all.
So the reason could be genetic or something else.


B. The Jani community has less than a thousand members.
The question is not how many are there but the question is why they as a community have the max life-expectancy..... INCORRECT

C. In Ambatia, all medical expenses are paid for by the government, so that personal income does not affect the quality of health care a person receives.
Again the point is not about health care but the seclusion that is being attributed to life expectancy.... INCORRECT

D. The life expectancy in Ambatai is 76 years, compared to 84 years in the Jani community.
This just gives more info and adds on to the facts of reasoning... INCORRECT

E. The oldest person in Country X is 97 years old, and she is not a member of the Jani community.
The point is of average and not one person.... INCORRECT

A
_________________

1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


GMAT online Tutor

Manager
Manager
avatar
G
Joined: 01 Aug 2017
Posts: 188
Location: India
Concentration: General Management, Leadership
Schools: ISB '20 (S), IIMA (S)
GMAT 1: 500 Q47 V15
GPA: 3.4
WE: Information Technology (Computer Software)
Premium Member Reviews Badge CAT Tests
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 13 Jun 2018, 01:57
A low-calorie, low-fat, high-protein diet has been shown to assist in increasing longevity. The average life expectancy among the Jani community in Ambatia is significantly higher than it is among any other community in the country. The Jani community is located in a remote, secluded area, and its only contact with the outside world is a monthly delivery of groceries from the nearest town unless the weather is too bad for the journey. Members of the community grow most of their food, as well as goats and chickens, which they occasionally eat. This essentially imposes a low-calorie, low-fat, high protein diet. Clearly, these circumstances account for the longer lives of the Jani community members.

Conclusion :- The circumstances described above account for the longer lives of the Jani community members.

Weakening Approach :-
We have to find the answer for question :- Why circumstances described above do not account for the longer lives of the Jani community members?



A. Many people who live in the Jani community joined it after the age of 40 or after retirement.
Seems to be valid choice. If people have stayed out for 40 years and still have high life-expectancy then the environment in which Jani community is not the only reason.
This choice is alternate reason for the cause.


B. The Jani community has less than a thousand members.
The question is not about number of people in the community. but the question is why they as a community have longer lives. INCORRECT

C. In Ambatia, all medical expenses are paid for by the government, so that personal income does not affect the quality of health care a person receives.
This choice talks about health care and doesn't help us answer our question. INCORRECT

D. The life expectancy in Ambatai is 76 years, compared to 84 years in the Jani community.
This choice presents some fact. And it doesn't help us answer our question. INCORRECT

E. The oldest person in Country X is 97 years old, and she is not a member of the Jani community.
This choice presents another fact. And it doesn't help us answer our question. INCORRECT

Ans - A.

Please let me know if my reasoning is correct.

Thanks in advance!!
_________________

If it helps you please press Kudos!

Thank You
Sudhanshu

Manager
Manager
avatar
B
Joined: 11 Apr 2018
Posts: 120
Location: India
GPA: 4
WE: Information Technology (Computer Software)
GMAT ToolKit User
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 14 Jun 2018, 05:37
1
Conclusion: Longer lives of the Jani community members is because of a low-calorie, low-fat, high-protein diet.

Assumption: No other factors contribute to longer lives in Jani community.

To prove: Other factors are there. This weakens the conclusion.

A. Many people who live in the Jani community joined it after the age of 40 or after retirement.
This shows that there are people who joined after 40 years or after retirement and still have a long life.
This essentially proves that other factors are involved.


B. The Jani community has less than a thousand members.
It is totally out of focus.

C. In Ambatia, all medical expenses are paid for by the government, so that personal income does not affect the quality of health care a person receives.
Irrelevant.

D. The life expectancy in Ambatai is 76 years, compared to 84 years in the Jani community.
This gives extra details. But doesn't weaken. In fact, this is opposite to what we are set out to prove.

E. The oldest person in Country X is 97 years old, and she is not a member of the Jani community.
Out of focus.
Manager
Manager
avatar
S
Joined: 12 Mar 2017
Posts: 222
Location: India
Concentration: Strategy, General Management
GMAT 1: 630 Q49 V27
GPA: 4
CAT Tests
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 07 Jul 2018, 02:01
VeritasPrepKarishma , broall

My logic for eliminating C was that "personal income does not affect the quality of health care a person receives". But we don't know whether that quality of healthcare is good or bad. So we can't really say that healthcare is responsible for longevity of people in Jani community. Is my logic correct?? Pls advise
Manager
Manager
User avatar
S
Joined: 03 Mar 2017
Posts: 149
CAT Tests
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in  [#permalink]

Show Tags

New post 09 Jul 2018, 12:00
1
Prateek176 wrote:
VeritasPrepKarishma , broall

My logic for eliminating C was that "personal income does not affect the quality of health care a person receives". But we don't know whether that quality of healthcare is good or bad. So we can't really say that healthcare is responsible for longevity of people in Jani community. Is my logic correct?? Pls advise



To some extent I can say yes your reasoning is correct. If it were given that the quality of healthcare provided was good, this option would have been a correct answer as it would have given us the alternate reason.

Since we do not know the quality of the health care a person receives(good or bad), this option can be eliminated.
_________________

--------------------------------------------------------------------------------------------------------------------------
All the Gods, All the Heavens, and All the Hells lie within you.

GMAT Club Bot
Re: A low-calorie, low-fat, high-protein diet has been shown to assist in &nbs [#permalink] 09 Jul 2018, 12:00
Display posts from previous: Sort by

A low-calorie, low-fat, high-protein diet has been shown to assist in

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| GMAT Club Rules| Contact| Sitemap

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®.