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

It is currently 21 Aug 2018, 15:17

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

The number of Tundra swan in an arctic refuge has been steadily dwindl

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

Hide Tags

Current Student
User avatar
V
Joined: 19 Mar 2012
Posts: 5120
Location: India
GMAT 1: 760 Q50 V42
GPA: 3.8
WE: Marketing (Non-Profit and Government)
The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 13 Aug 2015, 11:54
3
2
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

76% (01:27) correct 24% (01:54) wrong based on 371 sessions

HideShow timer Statistics

Image

The number of Tundra swan in an arctic refuge has been steadily dwindling. It has been determined that the majority of the birds have died from lead poisoning, which is contained in the buckshot that hunters use to kill the swan. Local authorities have responded by banning hunting, and the number of hunters cited has since dropped dramatically, yet the number of birds that continue to die each month from lead poisoning has not changed.

Which of the following, if true, best resolves the discrepancy above?


A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there.

B. Those hunters who continue to defy the hunting ban do not, on average, shoot more birds than did those who hunted in the park before the ban.

C. Park rangers have been unable to cite all of the the hunters that enter the park despite the ban.

D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams.

E. Eventually, there will be so few swan left in the refuge that the overall number of swan dying each month will decrease


Day 24 Question of the Verbal Contest: Race Against the GMAT Club Timer
Please make sure to post a brief reply without revealing your solution to enter the contest!

_________________

Have an MBA application Question? ASK ME ANYTHING!

My Stuff: Four Years to 760 | MBA Trends for Indian Applicants

My GMAT Resources
V30-V40: How to do it! | GMATPrep SC | GMATPrep CR | GMATPrep RC | Critical Reasoning Megathread | CR: Numbers and Statistics | CR: Weaken | CR: Strengthen | CR: Assumption | SC: Modifier | SC: Meaning | SC: SV Agreement | RC: Primary Purpose | PS/DS: Numbers and Inequalities | PS/DS: Combinatorics and Coordinates

My MBA Resources
Everything about the MBA Application | Over-Represented MBA woes | Fit Vs Rankings | Low GPA: What you can do | Letter of Recommendation: The Guide | Indian B Schools accepting GMAT score | Why MBA?

My Reviews
Veritas Prep Live Online

Retired Moderator
User avatar
S
Joined: 18 Sep 2014
Posts: 1162
Location: India
GMAT ToolKit User Premium Member Reviews Badge
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 13 Aug 2015, 12:14
1
The number of Tundra swan in an arctic refuge has been steadily decreasing.

Cause of death: lead poisoning contained in the buckshot that hunters use to kill the swan.

Local authorities have banned hunting, and the number of hunters cited has since dropped dramatically,

yet the number of birds that continue to die each month from lead poisoning has not changed.

A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there. (There is no mention of lead here. This cannot address the paradox.)

B. Those hunters who continue to defy the hunting ban do not, on average, shoot more birds than did those who hunted in the park before the ban. (this helps to address why the no is not increasing but does not address why the number is decreasing)

C. Park rangers have been unable to cite all of the the hunters that enter the park despite the ban. (Does not address the main concern. Makes one doubt doubt the premise.)

D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams. (This explains why swans continue to die because of lead poisoning.)

E. Eventually, there will be so few swan left in the refuge that the overall number of swan dying each month will decrease. (This describes the future concern rather than address the issue.)
_________________

The only time you can lose is when you give up. Try hard and you will suceed.
Thanks = Kudos. Kudos are appreciated

http://gmatclub.com/forum/rules-for-posting-in-verbal-gmat-forum-134642.html
When you post a question Pls. Provide its source & TAG your questions
Avoid posting from unreliable sources.


My posts
http://gmatclub.com/forum/beauty-of-coordinate-geometry-213760.html#p1649924
http://gmatclub.com/forum/calling-all-march-april-gmat-takers-who-want-to-cross-213154.html
http://gmatclub.com/forum/possessive-pronouns-200496.html
http://gmatclub.com/forum/double-negatives-206717.html
http://gmatclub.com/forum/the-greatest-integer-function-223595.html#p1721773
https://gmatclub.com/forum/improve-reading-habit-233410.html#p1802265

Manager
Manager
avatar
Joined: 09 Jul 2015
Posts: 58
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 13 Aug 2015, 12:41
1
The answer to this would clarify from what other source were the birds exposed to lead poisoning. IMO, the answer is

The number of Tundra swan in an arctic refuge has been steadily dwindling. It has been determined that the majority of the birds have died from lead poisoning, which is contained in the buckshot that hunters use to kill the swan. Local authorities have responded by banning hunting, and the number of hunters cited has since dropped dramatically, yet the number of birds that continue to die each month from lead poisoning has not changed.

Which of the following, if true, best resolves the discrepancy above?

A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there.
- This could be correct if the birds picked up lead from the silver mines, but this is not explicitly state.

B. Those hunters who continue to defy the hunting ban do not, on average, shoot more birds than did those who hunted in the park before the ban.
- this should only strengthen the argument and not explain for the gap. so this is ruled out.

C. Park rangers have been unable to cite all of the the hunters that enter the park despite the ban.
- this can explain partially, but not accounting for all hunters may not fully explain the gap

D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams.
- this certainly explains the gap, hence correct answer. Is there a typo here ? is it 'scatter around the ground' ?

E. Eventually, there will be so few swan left in the refuge that the overall number of swan dying each month will decrease
- this does not explain the gap.
_________________

Please kudos if you find this post helpful. I am trying to unlock the tests :)

Intern
Intern
avatar
Joined: 20 Mar 2015
Posts: 16
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 13 Aug 2015, 13:40
1
A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there. - I don't know

B. Those hunters who continue to defy the hunting ban do not, on average, shoot more birds than did those who hunted in the park before the ban. - I don't know

C. Park rangers have been unable to cite all of the the hunters that enter the park despite the ban. - I don't know, maybe

D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams.- I don't know

E. Eventually, there will be so few swan left in the refuge that the overall number of swan dying each month will decrease - I don't know
Manager
Manager
avatar
Joined: 08 May 2015
Posts: 100
GMAT 1: 630 Q39 V38
GMAT 2: 670 Q44 V38
GMAT 3: 750 Q49 V44
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 13 Aug 2015, 18:40
1
Interesting question. I think both A and D have strong and week spots. I chose A, but D makes sense to me as well.

A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there. - It does not say lead, but lead might be included in "various toxins". Since these toxins remained at the same level, they might might be the cause of the deaths and therefore explain why the ban on hunting failed to impact the number of deaths from lead poisoning.

D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams. - It makes sence, but I think there is a weak spot here: "yet the number of birds that continue to die each month from lead poisoning has not changed". Since they died by eating pellets from the ground, the diminished number of hunters should make the pellets on the ground decrease the more the swans ate them, making it less likely that the swans would eat it in the future and therefore decreasing the deaths over time.
Manager
Manager
User avatar
Joined: 03 Oct 2014
Posts: 137
Location: India
Concentration: Operations, Technology
GMAT 1: 720 Q48 V40
WE: Engineering (Aerospace and Defense)
Reviews Badge
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 13 Aug 2015, 23:06
1
[quote="souvik101990"]Image

The number of Tundra swan in an arctic refuge has been steadily dwindling. It has been determined that the majority of the birds have died from lead poisoning, which is contained in the buckshot that hunters use to kill the swan. Local authorities have responded by banning hunting, and the number of hunters cited has since dropped dramatically, yet the number of birds that continue to die each month from lead poisoning has not changed.

Which of the following, if true, best resolves the discrepancy above?

A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there.

B. Those hunters who continue to defy the hunting ban do not, on average, shoot more birds than did those who hunted in the park before the ban.

C. Park rangers have been unable to cite all of the the hunters that enter the park despite the ban.

D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams.

E. Eventually, there will be so few swan left in the refuge that the overall number of swan dying each month will decrease

[textarea]Day 24 Question of the Verbal Contest: Race Against the GMAT Club Timer

Left with A and D

A can be eliminated on the grounds that there is no mention of "Lead Poisoning". We can't assume toxins contain lead. So eliminate A

Answer - D
Intern
Intern
avatar
B
Joined: 07 Jul 2015
Posts: 47
Location: India
Concentration: Operations, General Management
GMAT 1: 660 Q47 V35
GMAT 2: 740 Q50 V40
GPA: 3.7
WE: Operations (Manufacturing)
Reviews Badge
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 14 Aug 2015, 04:10
1
i feel it should be a, as it is clearly stated that the number of birds dying has not dwindled whereas the hunters have dwindled.
if number of hunters have dwindled then the number of pellets lying around will also dwindle leading to a conclusion that there is some outside force causing the deaths and that has to be the poisoning caused by silver mines.
Senior Manager
Senior Manager
User avatar
G
Joined: 04 Feb 2014
Posts: 261
Location: India
Concentration: General Management, Entrepreneurship
GPA: 3
WE: Project Management (Manufacturing)
GMAT ToolKit User
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 14 Aug 2015, 08:09
1
puneetj88 wrote:
i feel it should be a, as it is clearly stated that the number of birds dying has not dwindled whereas the hunters have dwindled.
if number of hunters have dwindled then the number of pellets lying around will also dwindle leading to a conclusion that there is some outside force causing the deaths and that has to be the poisoning caused by silver mines.

Dear Puneetj88,
It talks of only the migrating Tundra birds and not all the Tundra birds. So this ans choice can be eliminated. If it would have not been for the word migrating, I would have picked this choice too. 8-)
_________________

Kudos if you like my post

Current Student
User avatar
Joined: 03 May 2014
Posts: 69
Concentration: Operations, Marketing
GMAT 1: 680 Q48 V34
GMAT 2: 700 Q49 V35
GPA: 3.6
WE: Engineering (Energy and Utilities)
GMAT ToolKit User
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 14 Aug 2015, 16:04
1
Confused between 2 options, I marked the option, which was considering less of assumptions. Would love to have its OE. Took 45secs and finally a question I gave the answer in less than a min.
_________________

Beat verbal, Beat GMAT...;)
Trying Hard to do that.....

Kudos if my post helped you

Manager
Manager
avatar
B
Joined: 18 Jan 2018
Posts: 59
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 17 Feb 2018, 07:29
souvik101990 wrote:
Image

The number of Tundra swan in an arctic refuge has been steadily dwindling. It has been determined that the majority of the birds have died from lead poisoning, which is contained in the buckshot that hunters use to kill the swan. Local authorities have responded by banning hunting, and the number of hunters cited has since dropped dramatically, yet the number of birds that continue to die each month from lead poisoning has not changed.

Which of the following, if true, best resolves the discrepancy above?

A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there.

B. Those hunters who continue to defy the hunting ban do not, on average, shoot more birds than did those who hunted in the park before the ban.

C. Park rangers have been unable to cite all of the the hunters that enter the park despite the ban.

D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams.

E. Eventually, there will be so few swan left in the refuge that the overall number of swan dying each month will decrease

Day 24 Question of the Verbal Contest: Race Against the GMAT Club Timer
Please make sure to post a brief reply without revealing your solution to enter the contest!


Applied POE method to arrive at the right answer. I found A & D to be the contenders.

Choice A though could appear to be tempting, it actually speaks about migrating tundra swans but not those in the refuge. It is also not clear in this choice whether lead is one of the various toxins they pick up while flying through Idaho.

Choice D resolves this confusion and clearly says the tundra swans that perished in the refuge ingested pellets that have introduced lead into their bloodstreams.
Director
Director
User avatar
P
Joined: 26 Aug 2016
Posts: 687
Location: India
Concentration: Strategy, Marketing
GMAT 1: 690 Q50 V33
GMAT 2: 700 Q50 V33
GMAT 3: 730 Q51 V38
GPA: 4
WE: Consulting (Consulting)
Premium Member Reviews Badge
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 24 Jul 2018, 21:02
Nevernevergiveup wrote:
The number of Tundra swan in an arctic refuge has been steadily decreasing.

Cause of death: lead poisoning contained in the buckshot that hunters use to kill the swan.

Local authorities have banned hunting, and the number of hunters cited has since dropped dramatically,

yet the number of birds that continue to die each month from lead poisoning has not changed.

A. Migrating tundra swans fly through Idaho where they pick up various toxins from the silver mines there. (There is no mention of lead here. This cannot address the paradox.)

B. Those hunters who continue to defy the hunting ban do not, on average, shoot more birds than did those who hunted in the park before the ban. (this helps to address why the no is not increasing but does not address why the number is decreasing)

C. Park rangers have been unable to cite all of the the hunters that enter the park despite the ban. (Does not address the main concern. Makes one doubt doubt the premise.)




D. Most swans that have perished in the refuge have died as a result of ingesting pellets scattered about the ground, which introduce lead into their bloodstreams. (This explains why swans continue to die because of lead poisoning.)

E. Eventually, there will be so few swan left in the refuge that the overall number of swan dying each month will decrease. (This describes the future concern rather than address the issue.)


D might account for an initial increase in deaths i.e. initial number being the same as number of deaths when hunting was allowed. However, The stimulus states that there had been no change EACH subsequent month. If the question states they couldn't see the change in number the next month, D would have been the best answer out there.

Can you please explain me, where am going wrong here. daagh Sir, abhimahna
Director
Director
User avatar
D
Joined: 23 Sep 2015
Posts: 814
GMAT ToolKit User Reviews Badge
Re: The number of Tundra swan in an arctic refuge has been steadily dwindl  [#permalink]

Show Tags

New post 06 Aug 2018, 17:46
1

Official Explanation


Fact #1 – Arctic swan number rapidly declining

Fact #2 – Dying from lead poisoning from buckshot

Fact #3 – Authorities have banned hunting

Paradox: birds are continuing to decline at dramatic rate

(A) is focused on various toxins. The argument clearly says “the number of birds…die each month from lead poisoning”.

(B) only deepens the mystery since the hunters still entering the park aren’t killing more swan than previous hunters. If they were, then that could account for the fact that the number of swans continues to decrease.

(C) doesn’t quite resolve the paradox. It hints at the fact that there might be more hunters than previously thought still entering the park. But just how many? Is that number significant enough to account for the ongoing decrease in the swan’s numbers? Too many questions and no clear answer.

(D) resolves the paradox. The swan is not dying because it is being shot. It is dying because it is eating buckshot that has been lying on the ground all along. Unless, somebody cleans up all the buckshot pellet, the swan will continue to die, even if no more hunters enter the park.

(E) just tells us that the swan’s predicament is dire. It does provide a reason that the swan’s numbers continue to decline despite the ban on hunting.
_________________

Thanks!
Do give some kudos.

Simple strategy:
“Once you’ve eliminated the impossible, whatever remains, however improbable, must be the truth.”

Best Gmat Resource:
GmatPrep CR|GmatPrep SC|GmatPrep RC

Want to improve your Score:
GMAT Ninja YouTube! Series 1| GMAT Ninja YouTube! Series 2

Re: The number of Tundra swan in an arctic refuge has been steadily dwindl &nbs [#permalink] 06 Aug 2018, 17:46
Display posts from previous: Sort by

The number of Tundra swan in an arctic refuge has been steadily dwindl

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

Events & Promotions

PREV
NEXT


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®.