It is currently 21 Oct 2017, 13:13

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

GMATPREP ChallengeQ -A recent study has provided clues to

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

Hide Tags

3 KUDOS received
Current Student
User avatar
Status: Everyone is a leader. Just stop listening to others.
Joined: 22 Mar 2013
Posts: 958

Kudos [?]: 1850 [3], given: 229

Location: India
GPA: 3.51
WE: Information Technology (Computer Software)
Premium Member Reviews Badge
GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 11 Aug 2014, 09:00
3
This post received
KUDOS
5
This post was
BOOKMARKED
Question 1
00:00
A
B
C
D
E

Question Stats:

66% (01:31) correct 34% (01:20) wrong based on 535

HideShow timer Statistics

Question 2
00:00
A
B
C
D
E

Question Stats:

70% (00:32) correct 30% (00:37) wrong based on 533

HideShow timer Statistics

Question 3
00:00
A
B
C
D
E

Question Stats:

76% (00:25) correct 24% (00:26) wrong based on 528

HideShow timer Statistics

Question 4
00:00
A
B
C
D
E

Question Stats:

66% (00:42) correct 34% (00:50) wrong based on 502

HideShow timer Statistics

Question 5
00:00
A
B
C
D
E

Question Stats:

58% (00:49) correct 42% (01:11) wrong based on 485

HideShow timer Statistics

Question 6
00:00
A
B
C
D
E

Question Stats:

79% (01:03) correct 21% (00:52) wrong based on 475

HideShow timer Statistics

The Official Guide for GMAT Review 10th Edition, 2003

Practice Question
Question No.: RC 231 ~ 235
Page: 392

Passage-08 GMATPrep RCs-Collection(Main article)
A recent study has provided clues to predator-prey dynamics in the late Pleistocene era. Researchers compared the number of tooth fractures in present-day carnivores with tooth fractures in carnivores that lived 36,000 to 10,000 years ago and that were preserved in the Rancho La Brea tar pits in Los Angeles. The breakage frequencies in the extinct species were strikingly higher than those in the present-day species.

In considering possible explanations for this finding, the researchers dismissed demographic bias because older individuals were not over represented in the fossil samples. They rejected preservational bias because a total absence of breakage in two extinct species demonstrated that the fractures were not the result of abrasion within the pits. They ruled out local bias because breakage data obtained from other Pleistocene sites were similar to the La Brea data. The explanation they consider most plausible is behavioral differences between extinct and present-day carnivores—in particular, more contact between the teeth of predators and the bones of prey due to more thorough consumption of carcasses by the extinct species. Such thorough carcass consumption implies to the researchers either that prey availability was low, at least seasonally, or that there was intense competition over kills and a high rate of carcass theft due to relatively high predator densities.

[Reveal] Spoiler:
E
1. The primary purpose of the passage is to

A. present several explanations for a well-known fact
B. suggest alternative methods for resolving a debate
C. argue in favor of a controversial theory
D. question the methodology used in a study
E. discuss the implications of a research finding


[Reveal] Spoiler:
B

2. According to the passage, compared with Pleistocene carnivores in other areas, Pleistocene carnivores in the La Brea area

A. included the same species, in approximately the same proportions
B. had a similar frequency of tooth fractures
C. populated the La Brea area more densely
D. consumed their prey more thoroughly
E. found it harder to obtain sufficient prey


[Reveal] Spoiler:
D

3. According to the passage, the researchers believe that the high frequency of tooth breakage in carnivores found at La Brea was caused primarily by

A. the aging process in individual carnivores
B. contact between the fossils in the pits
C. poor preservation of the fossils after they were removed from the pits
D. the impact of carnivores’ teeth against the bones of their prey
E. the impact of carnivores’ teeth against the bones of other carnivores during fights over kills


[Reveal] Spoiler:
D

4. The researchers’ conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that

A. the older an individual carnivore is, the more likely it is to have a large number of tooth fractures
B. the average age at death of a present-day carnivore is greater than was the average age at death of a Pleistocene carnivore
C. in Pleistocene carnivore species, older individuals consumed carcasses as thoroughly as did younger individuals
D. the methods used to determine animals’ ages in fossil samples tend to misidentify many older individuals as younger individuals
E. data concerning the ages of fossil samples cannot provide reliable information about behavioral differences between extinct carnivores and present-day carnivores


[Reveal] Spoiler:
A

5. According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that

A. the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits
B. the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits
C. Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses
D. all Pleistocene carnivore species differed behaviorally from present-day carnivore species
E. predator densities during the Pleistocene era were extremely high


[Reveal] Spoiler:
A

6. The passage suggests that tooth fractures in Pleistocene carnivores probably tended to occur less frequently

A during periods in which more prey were available
B at sites distant from the La Brea area
C in older individual carnivores
D in species that were not preserved as fossils
E in species that regularly stole carcasses from other species

[Reveal] Spoiler: Question #1 OA
[Reveal] Spoiler: Question #2 OA
[Reveal] Spoiler: Question #3 OA
[Reveal] Spoiler: Question #4 OA
[Reveal] Spoiler: Question #5 OA
[Reveal] Spoiler: Question #6 OA

_________________

Piyush K
-----------------------
Our greatest weakness lies in giving up. The most certain way to succeed is to try just one more time. ― Thomas A. Edison
Don't forget to press--> Kudos :)
My Articles: 1. WOULD: when to use? | 2. All GMATPrep RCs (New)
Tip: Before exam a week earlier don't forget to exhaust all gmatprep problems specially for "sentence correction".

Kudos [?]: 1850 [3], given: 229

1 KUDOS received
Senior Manager
Senior Manager
avatar
Status: On a mountain of skulls, in the castle of pain, I sit on a throne of blood.
Joined: 30 Jul 2013
Posts: 361

Kudos [?]: 207 [1], given: 133

GMAT ToolKit User Reviews Badge CAT Tests
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 11 Aug 2014, 17:13
1
This post received
KUDOS

1. A. Last paragraph implies that if the prey was scarce then the predator had more contact with the prey's bone.
2. B 5th line of the 2nd paragraph states this.
3. D The last few lines of paragraph 2 points to this. The rest of the options were all dismissed by the scientists.
4. D The premise of rejecting the hypothesis of not enough older samples breaks if this option were true. If the method of identifying younger from older was faulty and identified older dinos as younger, then there were clearly more older dinos among the samples under study.
5. A If either or both of those samples had breakage, then it would be possible that there was some damage done by the pits that stored the fossils for all of these years.
6. A Last paragraph says that prey was "seasonally available". Therefore, there were periods when prey was more available and periods when there was few or maybe none.

P.S. Question 5 has been repeated twice. The count of questions is 7 when in fact there are only 6 unique questions.

Last edited by PiyushK on 13 Aug 2014, 21:28, edited 1 time in total.
Added timer.

Kudos [?]: 207 [1], given: 133

Current Student
User avatar
Status: Everyone is a leader. Just stop listening to others.
Joined: 22 Mar 2013
Posts: 958

Kudos [?]: 1850 [0], given: 229

Location: India
GPA: 3.51
WE: Information Technology (Computer Software)
Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 12 Aug 2014, 04:37
AmoyV wrote:
@PiyushK : OA's ?


Will post soon after few more replies on this thread, else people wont discuss their doubts or reasoning.
_________________

Piyush K
-----------------------
Our greatest weakness lies in giving up. The most certain way to succeed is to try just one more time. ― Thomas A. Edison
Don't forget to press--> Kudos :)
My Articles: 1. WOULD: when to use? | 2. All GMATPrep RCs (New)
Tip: Before exam a week earlier don't forget to exhaust all gmatprep problems specially for "sentence correction".

Kudos [?]: 1850 [0], given: 229

3 KUDOS received
Verbal Forum Moderator
Verbal Forum Moderator
User avatar
Joined: 05 Nov 2012
Posts: 531

Kudos [?]: 621 [3], given: 606

Concentration: Technology, Other
GMAT ToolKit User Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 12 Aug 2014, 06:00
3
This post received
KUDOS
Time taken 7:30 min.
1.The passage suggests that tooth fractures in Pleistocene carnivores probably tended to occur less frequently
A. during periods in which more prey were available
" more contact between the teeth of predators and the bones of prey due to more thorough consumption of carcasses by the extinct species.
Such thorough carcass consumption implies to the researchers either that prey availability was low, at least seasonally, or that there was intense competition over kills and a high rate of carcass theft due to relatively high predator densities."

2.According to the passage, compared with Pleistocene carnivores in other areas, Pleistocene carnivores in the La Brea area
B. had a similar frequency of tooth fractures
"hey ruled out local bias because breakage data obtained from other Pleistocene sites were similar to the La Brea data."

3.According to the passage, the researchers believe that the high frequency of tooth breakage in carnivores found at La Brea was caused primarily by
D. the impact of carnivores’ teeth against the bones of their prey
"more contact between the teeth of predators and the bones of prey due to more thorough consumption of carcasses"

4.The researchers’ conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that
D. the methods used to determine animals’ ages in fossil samples tend to misidentify many older individuals as younger individuals
"demographic bias because older individuals were not over represented in the fossil samples."

5.According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that
A. the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits
"They rejected preservational bias because a total absence of breakage in two extinct species demonstrated that the fractures were not the result of abrasion within the pits"

6.The passage suggests that tooth fractures in Pleistocene carnivores probably tended to occur less frequently
A during periods in which more prey were available
Duplicate of A
_________________

--------------------------------------------------------
Regards :)

Kudos [?]: 621 [3], given: 606

Current Student
User avatar
Status: Everyone is a leader. Just stop listening to others.
Joined: 22 Mar 2013
Posts: 958

Kudos [?]: 1850 [0], given: 229

Location: India
GPA: 3.51
WE: Information Technology (Computer Software)
Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 14 Aug 2014, 00:12
Just added Q-1. OAs are updated.

6min 58sec

for old set of questions OA was A B D D A A and I got 4th wrong; I marked A, though D is also convincing.
4. The researchers’ conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that
A. the older an individual carnivore is, the more likely it is to have a large number of tooth fractures
_________________

Piyush K
-----------------------
Our greatest weakness lies in giving up. The most certain way to succeed is to try just one more time. ― Thomas A. Edison
Don't forget to press--> Kudos :)
My Articles: 1. WOULD: when to use? | 2. All GMATPrep RCs (New)
Tip: Before exam a week earlier don't forget to exhaust all gmatprep problems specially for "sentence correction".

Kudos [?]: 1850 [0], given: 229

Manager
Manager
avatar
Joined: 25 Apr 2014
Posts: 143

Kudos [?]: 73 [0], given: 1474

Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 19 Aug 2014, 22:00
8 mins 46 secs
What is with Q1? I dont quite seem to understand the answers mentioned here.
My answers are
1.E
2.B
3.D
4.D
5.A
6.A

Kudos [?]: 73 [0], given: 1474

Verbal Forum Moderator
Verbal Forum Moderator
User avatar
Status: Getting strong now, I'm so strong now!!!
Affiliations: National Institute of Technology, Durgapur
Joined: 04 Jun 2013
Posts: 564

Kudos [?]: 695 [0], given: 80

Location: India
GPA: 3.32
WE: Information Technology (Computer Software)
GMAT ToolKit User Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 25 Nov 2014, 01:54
Time taken 9:15 seconds.
Got all correct.
A medium difficulty passage in my opinion.
Ideally 10 mins should be decent for this passage.
_________________

Regards,

S

Consider +1 KUDOS if you find this post useful

Kudos [?]: 695 [0], given: 80

Chat Moderator
User avatar
Joined: 19 Apr 2013
Posts: 689

Kudos [?]: 170 [0], given: 537

Concentration: Strategy, Healthcare
Schools: Sloan '18 (A)
GMAT 1: 730 Q48 V41
GPA: 4
GMAT ToolKit User Premium Member
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 24 Feb 2015, 05:38
Is this really a gmatprep question? I have encountered it in official guide, too.
_________________

If my post was helpful, press Kudos. If not, then just press Kudos !!!

Kudos [?]: 170 [0], given: 537

Manager
Manager
User avatar
Joined: 21 Jun 2014
Posts: 149

Kudos [?]: 97 [0], given: 59

Location: United States
Concentration: General Management, Strategy
GMAT 1: 630 Q45 V31
GPA: 3.4
WE: Engineering (Computer Software)
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 25 Jun 2015, 08:17
1E 2A(Incorrect) 3D 4D 5A 6A


Total time =3 minutes 21 seconds
_________________

Regards,
Manish Khare
"Every thing is fine at the end. If it is not fine ,then it is not the end "

Kudos [?]: 97 [0], given: 59

Manager
Manager
User avatar
Joined: 08 Jul 2015
Posts: 60

Kudos [?]: 19 [0], given: 51

GPA: 3.8
WE: Project Management (Energy and Utilities)
Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 26 May 2016, 20:28
Time for me 10'29'' - all correct! Medium for me.

P/s: manishkhare what a speed!
_________________

[4.33] In the end, what would you gain from everlasting remembrance? Absolutely nothing. So what is left worth living for?
This alone: justice in thought, goodness in action, speech that cannot deceive, and a disposition glad of whatever comes, welcoming it as necessary, as familiar, as flowing from the same source and fountain as yourself. (Marcus Aurelius)

Kudos [?]: 19 [0], given: 51

Intern
Intern
avatar
Joined: 28 Jul 2016
Posts: 25

Kudos [?]: 3 [0], given: 33

Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 30 Jul 2016, 02:13
time 10 mins
all correct.
Accuracy not a problem,but i seem to be taking little more time than others. :(

Kudos [?]: 3 [0], given: 33

BSchool Forum Moderator
User avatar
D
Status: Aiming MBA
Joined: 18 Jul 2015
Posts: 2537

Kudos [?]: 800 [0], given: 64

Location: India
Concentration: Healthcare, Technology
GMAT 1: 710 Q50 V35
GPA: 3.65
WE: Information Technology (Health Care)
Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 30 Jul 2016, 09:42
Easy passage. Time taken 6 mins. All correct
_________________

How I improved from V21 to V40! ?

Kudos [?]: 800 [0], given: 64

Senior Manager
Senior Manager
avatar
S
Joined: 07 Sep 2014
Posts: 484

Kudos [?]: 30 [0], given: 342

Concentration: Finance, Marketing
CAT Tests
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 15 Aug 2016, 07:56
5. According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that
A. the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits
B. the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits
C. Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses
D. all Pleistocene carnivore species differed behaviorally from present-day carnivore species
E. predator densities during the Pleistocene era were extremely high

"The explanation they consider most plausible is behavioral differences between extinct and present-day carnivores"
So if the tooth -breakage problem was not there then they would have considered that Pleistocene carnivore species probably behaved very similarly to one another.
I dont understand why A.

ALso The primary purpose of the passage is to

A. present several explanations for a well-known fact

E. discuss the implications of a research finding

Implication discussion is just a part of the entire passage so why not A. Because passage explore finding, then method and then implication.

Kudos [?]: 30 [0], given: 342

2 KUDOS received
BSchool Forum Moderator
User avatar
D
Status: Aiming MBA
Joined: 18 Jul 2015
Posts: 2537

Kudos [?]: 800 [2], given: 64

Location: India
Concentration: Healthcare, Technology
GMAT 1: 710 Q50 V35
GPA: 3.65
WE: Information Technology (Health Care)
Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 15 Aug 2016, 08:14
2
This post received
KUDOS
1
This post was
BOOKMARKED
abrakadabra21 wrote:
5. According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that
A. the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits
B. the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits
C. Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses
D. all Pleistocene carnivore species differed behaviorally from present-day carnivore species
E. predator densities during the Pleistocene era were extremely high

"The explanation they consider most plausible is behavioral differences between extinct and present-day carnivores"
So if the tooth -breakage problem was not there then they would have considered that Pleistocene carnivore species probably behaved very similarly to one another.
I dont understand why A.

ALso The primary purpose of the passage is to

A. present several explanations for a well-known fact

E. discuss the implications of a research finding

Implication discussion is just a part of the entire passage so why not A. Because passage explore finding, then method and then implication.



5. According to the passage, if the researchers had NOT found that two extinct carnivore species were free of tooth breakage, the researchers would have concluded that
A. the difference in breakage frequencies could have been the result of damage to the fossil remains in the La Brea pits
B. the fossils in other Pleistocene sites could have higher breakage frequencies than do the fossils in the La Brea pits
C. Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses
D. all Pleistocene carnivore species differed behaviorally from present-day carnivore species
E. predator densities during the Pleistocene era were extremely high

"The explanation they consider most plausible is behavioral differences between extinct and present-day carnivores"
So if the tooth -breakage problem was not there then they would have considered that Pleistocene carnivore species probably behaved very similarly to one another.
I dont understand why A.


The passage states that they rejected preservational bias because of the absence of Tooth decay. So, if they found that there was some touch decay, they could not have have proceeded further and concluded that preservational bias is the possible explanations for the finding mentioned. hence, they could not have proceeded further. Hence, A clearly states this idea.

Again, we are not sure if Pleistocene carnivore species probably behaved very similarly to one another with respect to consumption of carcasses or not. There is no information supporting this idea , hence, we cannot assume it on our own. May be they couldn't have proceeded to provide this explanation. Hence, it is a very weak answer choice.


ALso The primary purpose of the passage is to

A. present several explanations for a well-known fact

E. discuss the implications of a research finding

Implication discussion is just a part of the entire passage so why not A. Because passage explore finding, then method and then implication.


The passage states an Idea and then trying to get the possible explanation for the same. But it rejected a couple of explanations and came to a final conclusion. hence, He is providing the Only explanation for the finding. Hence, E.

A is not the right answer because the author has not provided the several explanations for the finding, rather ruled out the possible explanations and provided only One. Hence, we can say he is providing information on what the finding is implying. Hence, E.

_________________

How I improved from V21 to V40! ?

Kudos [?]: 800 [2], given: 64

Math Forum Moderator
User avatar
D
Status: Greatness begins beyond your comfort zone
Joined: 08 Dec 2013
Posts: 1530

Kudos [?]: 953 [0], given: 72

Location: India
Concentration: General Management, Strategy
GPA: 3.2
WE: Information Technology (Consulting)
GMAT ToolKit User Reviews Badge CAT Tests
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 22 Aug 2016, 00:08
Interesting passage . Took 9 mins 50 seconds ,including 2 mins and 50 seconds to read
-The author does not provide an opinion
- He is only concerned with providing information on predator-prey dynamics
- The author presents various explanations for a finding

1 .
The author is concerned with the implications of the findings which is suggested in the following lines.. "Such thorough carcass consumption implies to the researchers either that prey availability was low, at least seasonally, or that there was intense competition over kills and a high rate of carcass theft due to relatively high predator densities "
Hence option (E) is the right answer.

2 .
"They ruled out local bias because breakage data obtained from other Pleistocene sites were similar to the La Brea data"
The above excerpt suggests that both carnivores had similar breakage patterns and thereby similar frequency in tooth fractures. Hence option (B) is the right answer.

3.
"The explanation they consider most plausible is behavioral differences between extinct and present-day carnivores—in particular, more contact between the teeth of predators and the bones of prey due to more thorough consumption of carcasses by the extinct species."
Answer D

4.
the methods used to determine animals’ ages in fossil samples tend to misidentify many older individuals as younger individuals

Answer D

5.
"They rejected preservational bias because a total absence of breakage in two extinct species demonstrated that the fractures were not the result of abrasion within the pits."
Answer A

6.
Such thorough carcass consumption implies to the researchers either that prey availability was low, at least seasonally, or that there was intense competition over kills and a high rate of carcass theft due to relatively high predator densities.

Answer A
_________________

When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. - Henry Ford
The Moment You Think About Giving Up, Think Of The Reason Why You Held On So Long
+1 Kudos if you find this post helpful

Kudos [?]: 953 [0], given: 72

Expert Post
Verbal Expert
User avatar
S
Joined: 14 Dec 2013
Posts: 3157

Kudos [?]: 3313 [0], given: 22

Location: Germany
Schools: HHL Leipzig
GMAT 1: 780 Q50 V47
WE: Corporate Finance (Pharmaceuticals and Biotech)
GMAT ToolKit User Premium Member Reviews Badge
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 31 Dec 2016, 22:39
Expert's post
1
This post was
BOOKMARKED
oasis90 wrote:
Hello sayantanc2k,

Can you please help me understand what why A is wrong and E is right for question 1 on the link below?

Thanks,

Humam
gmatprep-challengeq-a-recent-study-has-provided-clues-to-176177.html



That carcasses were consumed thoroughly is the research finding. The passage discusses what this finding might imply. Therefore E is correct.

Nowhere in the passage is stated that tooth fracture is a well-known fact. Hence option A is wrong.

Kudos [?]: 3313 [0], given: 22

Manager
Manager
avatar
B
Joined: 02 Nov 2013
Posts: 97

Kudos [?]: 9 [0], given: 10

Location: India
Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 31 Dec 2016, 23:33
Only one wrong (third, mistaken because of confusion).... Taken 8 minutes 40 seconds...
Medium passage for me..

Kudos [?]: 9 [0], given: 10

Intern
Intern
avatar
B
Joined: 31 Jul 2016
Posts: 10

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

Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 04 Jan 2017, 09:11
Time taken 8 minutes 20 seconds 1 wrong

4. The researchers’ conclusion concerning the absence of demographic bias would be most seriously undermined if it were found that
A. the older an individual carnivore is, the more likely it is to have a large number of tooth fractures
B. the average age at death of a present-day carnivore is greater than was the average age at death of a Pleistocene carnivore
C. in Pleistocene carnivore species, older individuals consumed carcasses as thoroughly as did younger individuals
D. the methods used to determine animals’ ages in fossil samples tend to misidentify many older individuals as younger individuals
E. data concerning the ages of fossil samples cannot provide reliable information about behavioral differences between extinct carnivores and present-day carnivores

Chose B got thrown off by thinking D is out of scope. Remember to read full answer choice and don't get baited/ sold on B.

D is correct

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

Intern
Intern
avatar
B
Joined: 17 Sep 2016
Posts: 32

Kudos [?]: 1 [0], given: 3

Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 04 Jan 2017, 09:26
Level of difficulty seemed easy.
Answers E B D D A A
Time consumed 8 mins.

Sent from my Lenovo A7020a48 using GMAT Club Forum mobile app

Kudos [?]: 1 [0], given: 3

Intern
Intern
avatar
B
Joined: 02 Jan 2017
Posts: 18

Kudos [?]: 10 [0], given: 13

Re: GMATPREP ChallengeQ -A recent study has provided clues to [#permalink]

Show Tags

New post 13 Feb 2017, 00:37
Hi,
can someone please help me in the "Primary Purpose" Question

1. The primary purpose of the passage is to
A. present several explanations for a well-known fact
B. suggest alternative methods for resolving a debate
C. argue in favor of a controversial theory
D. question the methodology used in a study
E. discuss the implications of a research finding

Why Option A is rejected.

Kudos [?]: 10 [0], given: 13

Re: GMATPREP ChallengeQ -A recent study has provided clues to   [#permalink] 13 Feb 2017, 00:37

Go to page    1   2    Next  [ 24 posts ] 

Display posts from previous: Sort by

GMATPREP ChallengeQ -A recent study has provided clues to

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


GMAT Club MBA Forum Home| About| Terms and Conditions| 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®.