Find all School-related info fast with the new School-Specific MBA Forum

It is currently 22 Oct 2014, 07:34

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Today s farmers plant only a handful of different strains of

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
User avatar
Joined: 10 Nov 2010
Posts: 166
Followers: 4

Kudos [?]: 92 [0], given: 6

Today s farmers plant only a handful of different strains of [#permalink] New post 10 Mar 2011, 10:02
00:00
A
B
C
D
E

Difficulty:

  75% (hard)

Question Stats:

49% (02:27) correct 51% (01:41) wrong based on 129 sessions
Today’s farmers plant only a handful of different
strains of a given crop. Crops lack the diversity that
they had only a few generations ago. Hence, a disease
that strikes only a few strains of crops, and that would
have had only minor impact on the food supply in the
past, would devastate it today.
Which one of the following, if true, would most
weaken the argument?
(A) In the past, crop diseases would often devastate
food supplies throughout entire regions.
(B) Affected crops can quickly be replaced from
seed banks that store many strains of those
crops.
(C) Some of the less popular seed strains that were
used in the past were more resistant to many
diseases than are the strains popular today.
(D) Humans today have more variety in their diets
than in the past, but still rely heavily on cereal
crops like rice and wheat.
(E) Today’s crops are much less vulnerable to
damage from insects or encroachment by
weeds than were crops of a few generations
ago.
[Reveal] Spoiler: OA
Director
Director
avatar
Status: Matriculating
Affiliations: Chicago Booth Class of 2015
Joined: 03 Feb 2011
Posts: 929
Followers: 11

Kudos [?]: 199 [0], given: 123

Reviews Badge
Re: Today’s farmers plant only a handful [#permalink] New post 10 Mar 2011, 10:27
Conclusion : A disease that strikes just a few strains will devastate the food supply.
Evidence : Farmers plant few strains

If the affected crops can be replaced then the effect of the destruction can be annulled. This is exactly B.

vjsharma25 wrote:
Today’s farmers plant only a handful of different
strains of a given crop. Crops lack the diversity that
they had only a few generations ago. Hence, a disease
that strikes only a few strains of crops, and that would
have had only minor impact on the food supply in the
past, would devastate it today.
Which one of the following, if true, would most
weaken the argument?
(A) In the past, crop diseases would often devastate
food supplies throughout entire regions.
(B) Affected crops can quickly be replaced from
seed banks that store many strains of those
crops.
(C) Some of the less popular seed strains that were
used in the past were more resistant to many
diseases than are the strains popular today.
(D) Humans today have more variety in their diets
than in the past, but still rely heavily on cereal
crops like rice and wheat.
(E) Today’s crops are much less vulnerable to
damage from insects or encroachment by
weeds than were crops of a few generations
ago.
Manager
Manager
User avatar
Joined: 10 Nov 2010
Posts: 166
Followers: 4

Kudos [?]: 92 [0], given: 6

Re: Today’s farmers plant only a handful [#permalink] New post 10 Mar 2011, 10:45
Why not (E) ?
Can't we relate insects to the disease?
Senior Manager
Senior Manager
avatar
Joined: 18 Oct 2010
Posts: 411
Followers: 8

Kudos [?]: 47 [0], given: 115

Reviews Badge
Re: Today’s farmers plant only a handful [#permalink] New post 10 Mar 2011, 10:47
vjsharma25 wrote:
Why not (E) ?
Can't we relate insects to the disease?

Exactly. We cannot assume that insects=disease. Hence, E is ruled out.
SVP
SVP
User avatar
Joined: 06 Sep 2013
Posts: 1739
Location: United States
Concentration: Finance
GMAT 1: 710 Q48 V39
WE: Corporate Finance (Investment Banking)
Followers: 14

Kudos [?]: 192 [0], given: 295

GMAT ToolKit User
Re: Today’s farmers plant only a handful [#permalink] New post 03 Jan 2014, 10:21
heygirl wrote:
vjsharma25 wrote:
Why not (E) ?
Can't we relate insects to the disease?

Exactly. We cannot assume that insects=disease. Hence, E is ruled out.


Oh I see very clever.

Cheers!

J :)
Intern
Intern
avatar
Joined: 27 Dec 2012
Posts: 19
Location: India
Concentration: Technology, General Management
GMAT Date: 02-21-2014
GPA: 3
WE: Engineering (Energy and Utilities)
Followers: 1

Kudos [?]: 14 [0], given: 5

Re: Today s farmers plant only a handful of different strains of [#permalink] New post 03 Jan 2014, 17:05
Why not A?
If I can prove that in the past also food supplies were devastated due to diseases, so we cant blame today's farming styles completely?

Regards,
DJ
1 KUDOS received
Senior Manager
Senior Manager
User avatar
Joined: 17 Dec 2012
Posts: 395
Location: India
Followers: 14

Kudos [?]: 192 [1] , given: 10

Re: Today s farmers plant only a handful of different strains of [#permalink] New post 03 Jan 2014, 21:56
1
This post received
KUDOS
vjsharma25 wrote:
Today’s farmers plant only a handful of different
strains of a given crop. Crops lack the diversity that
they had only a few generations ago. Hence, a disease
that strikes only a few strains of crops, and that would
have had only minor impact on the food supply in the
past, would devastate it today.
Which one of the following, if true, would most
weaken the argument?
(A) In the past, crop diseases would often devastate
food supplies throughout entire regions.
(B) Affected crops can quickly be replaced from
seed banks that store many strains of those
crops.
(C) Some of the less popular seed strains that were
used in the past were more resistant to many
diseases than are the strains popular today.
(D) Humans today have more variety in their diets
than in the past, but still rely heavily on cereal
crops like rice and wheat.
(E) Today’s crops are much less vulnerable to
damage from insects or encroachment by
weeds than were crops of a few generations
ago.


Negate the conclusion

It is: The disease that strikes the few strains of crops would not devastate the food supply

Since this is a weaken question look for the choice that offers an explanation for the above.

Choice B offers the reason why the food supply would not be devastated. None of the others do.
_________________

Srinivasan Vaidyaraman
Sravna Test Prep
http://www.sravna.com

Classroom Courses in Chennai
Online and Correspondence Courses

Intern
Intern
avatar
Joined: 27 Dec 2012
Posts: 19
Location: India
Concentration: Technology, General Management
GMAT Date: 02-21-2014
GPA: 3
WE: Engineering (Energy and Utilities)
Followers: 1

Kudos [?]: 14 [0], given: 5

Re: Today s farmers plant only a handful of different strains of [#permalink] New post 05 Jan 2014, 04:36
SravnaTestPrep wrote:
vjsharma25 wrote:
Today’s farmers plant only a handful of different
strains of a given crop. Crops lack the diversity that
they had only a few generations ago. Hence, a disease
that strikes only a few strains of crops, and that would
have had only minor impact on the food supply in the
past, would devastate it today.
Which one of the following, if true, would most
weaken the argument?
(A) In the past, crop diseases would often devastate
food supplies throughout entire regions.
(B) Affected crops can quickly be replaced from
seed banks that store many strains of those
crops.
(C) Some of the less popular seed strains that were
used in the past were more resistant to many
diseases than are the strains popular today.
(D) Humans today have more variety in their diets
than in the past, but still rely heavily on cereal
crops like rice and wheat.
(E) Today’s crops are much less vulnerable to
damage from insects or encroachment by
weeds than were crops of a few generations
ago.


Negate the conclusion

It is: The disease that strikes the few strains of crops would not devastate the food supply

Since this is a weaken question look for the choice that offers an explanation for the above.

Choice B offers the reason why the food supply would not be devastated. None of the others do.


But how can B negate? Just asking. Once a set of crops get disease, how would new seeds will help the crops? We will have to plant the seeds again to get a disease free produce.

My thinking is that devastation is blamed entirely on lack of diversity in today's ways of agriculture.
So negation of this can be: If devastation has occured in the past as well due to diseases.

Regards,
DJ
Senior Manager
Senior Manager
User avatar
Joined: 17 Dec 2012
Posts: 395
Location: India
Followers: 14

Kudos [?]: 192 [0], given: 10

Re: Today s farmers plant only a handful of different strains of [#permalink] New post 05 Jan 2014, 04:56
akashganga wrote:
SravnaTestPrep wrote:
vjsharma25 wrote:
Today’s farmers plant only a handful of different
strains of a given crop. Crops lack the diversity that
they had only a few generations ago. Hence, a disease
that strikes only a few strains of crops, and that would
have had only minor impact on the food supply in the
past, would devastate it today.
Which one of the following, if true, would most
weaken the argument?
(A) In the past, crop diseases would often devastate
food supplies throughout entire regions.
(B) Affected crops can quickly be replaced from
seed banks that store many strains of those
crops.
(C) Some of the less popular seed strains that were
used in the past were more resistant to many
diseases than are the strains popular today.
(D) Humans today have more variety in their diets
than in the past, but still rely heavily on cereal
crops like rice and wheat.
(E) Today’s crops are much less vulnerable to
damage from insects or encroachment by
weeds than were crops of a few generations
ago.


Negate the conclusion

It is: The disease that strikes the few strains of crops would not devastate the food supply

Since this is a weaken question look for the choice that offers an explanation for the above.

Choice B offers the reason why the food supply would not be devastated. None of the others do.


But how can B negate? Just asking. Once a set of crops get disease, how would new seeds will help the crops? We will have to plant the seeds again to get a disease free produce.

My thinking is that devastation is blamed entirely on lack of diversity in today's ways of agriculture.
So negation of this can be: If devastation has occured in the past as well due to diseases.

Regards,
DJ


Hi DJ,

What my method does is to negate the conclusion and see which choice offers the best explanation for the negated conclusion in the case of a weaken question. The negated conclusion is that, the food supply would not be devastated. Choice B offers the reason why the food supply would not be devastated. Choice A does not offer the reason for the negated conclusion.
_________________

Srinivasan Vaidyaraman
Sravna Test Prep
http://www.sravna.com

Classroom Courses in Chennai
Online and Correspondence Courses

1 KUDOS received
Manager
Manager
User avatar
Joined: 20 Dec 2013
Posts: 119
Followers: 1

Kudos [?]: 42 [1] , given: 1

Re: Today s farmers plant only a handful of different strains of [#permalink] New post 05 Jan 2014, 06:08
1
This post received
KUDOS
PREMISES: farmers plant only some strains ... so diversity is less
CONC: diseases (strike only few strains) will be more devastating today

Option A: talking about the past /irrelevant
Option B: talking about a solution
Option C: Comparing the past less popular strains and present popular strains /irrelevant
Option D: talks about diets / irrelevant
Option E: talking about insects or weeds not diseases /irrelevant

Hence, B is the answer.
_________________

Perfect Scores

If you think our post was valuable then please encourage us with Kudos :)

To learn GMAT for free visit:

http://Perfect-Scores.com
http://Youtube.com/PerfectScores
http://Facebook.com/PerfectScores

Re: Today s farmers plant only a handful of different strains of   [#permalink] 05 Jan 2014, 06:08
    Similar topics Author Replies Last post
Similar
Topics:
5 Experts publish their posts in the topic Only some strains of the tobacco plant are naturally resista notrandom 1 04 Nov 2013, 01:03
If a single strain of plant is used for a given crop over a nakib77 11 30 Oct 2005, 12:40
If a single strain of plant is used for a given crop over a macca 4 13 Sep 2005, 13:33
If a single strain of plant is used for a given crop over a WinWinMBA 5 15 Jun 2005, 14:51
Farmer..what to plant? NEWKID 11 13 Nov 2004, 12:12
Display posts from previous: Sort by

Today s farmers plant only a handful of different strains of

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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

Powered by phpBB © phpBB Group and phpBB SEO

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®.