It is currently 16 Jan 2018, 19:39

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

Researchers recently discovered an unusually high concentration of har

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

Hide Tags

Current Student
User avatar
Joined: 21 Aug 2014
Posts: 138

Kudos [?]: 259 [0], given: 49

GMAT 1: 610 Q49 V25
GMAT 2: 730 Q50 V40
Researchers recently discovered an unusually high concentration of har [#permalink]

Show Tags

New post 09 Jul 2015, 03:47
1
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

69% (01:22) correct 31% (01:28) wrong based on 175 sessions

HideShow timer Statistics

Researchers recently discovered an unusually high concentration of harmful metals in the water supply of Dunbarton county. They further found that, with a costly new water filter system installed in their homes, residents were able to filter out almost all of the harmful metals in the water supply. For this reason, all the residents of Dunbarton county should have the filter system installed in their homes, regardless of expense.

If true, which of the following would most weaken the above conclusion?

A. Researchers could not discover how the harmful metals were entering the water supply.

B. The increased levels of harmful metals were insufficient to result in significant health effects.

C. The researchers failed to investigate the possibility of harmful microorganisms and other contamination in the county's water supply.

D. The researchers found that people who tried to purify their water by boiling it were just as likely to ingest increased levels of harmful metals as people who drank straight from the tap.

E. Researchers found that, over time, the levels of harmful metals in the water supply did not vary significantly and remained consistently high.
[Reveal] Spoiler: OA

Kudos [?]: 259 [0], given: 49

1 KUDOS received
Manager
Manager
avatar
S
Joined: 12 Feb 2015
Posts: 80

Kudos [?]: 25 [1], given: 7

Location: India
Concentration: Technology, Operations
GMAT 1: 530 Q48 V17
GPA: 3.83
WE: Information Technology (Computer Software)
GMAT ToolKit User
Re: Researchers recently discovered an unusually high concentration of har [#permalink]

Show Tags

New post 09 Jul 2015, 10:46
1
This post received
KUDOS
Ans : B
Because if there are no significant health hazards happening due to intake of this water, there is no necessity of installing the expensive equipment to filter water at home. Hence the argument is weakened.

Kudos [?]: 25 [1], given: 7

Non-Human User
User avatar
Joined: 01 Oct 2013
Posts: 10263

Kudos [?]: 287 [0], given: 0

Premium Member
Re: Researchers recently discovered an unusually high concentration of har [#permalink]

Show Tags

New post 10 Dec 2017, 17:35
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.

Kudos [?]: 287 [0], given: 0

SVP
SVP
avatar
G
Joined: 12 Dec 2016
Posts: 1860

Kudos [?]: 164 [0], given: 2406

Location: United States
GMAT 1: 700 Q49 V33
GPA: 3.64
GMAT ToolKit User Premium Member
Re: Researchers recently discovered an unusually high concentration of har [#permalink]

Show Tags

New post 10 Dec 2017, 17:37
"For this reason" indicates that there is only one main premise.
There are 2 or 3 patterns in option choices.

Kudos [?]: 164 [0], given: 2406

Re: Researchers recently discovered an unusually high concentration of har   [#permalink] 10 Dec 2017, 17:37
Display posts from previous: Sort by

Researchers recently discovered an unusually high concentration of har

  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®.