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

It is currently 21 Aug 2014, 12:27

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

The National Association of Fire Fighters says that 45

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
CEO
CEO
avatar
Joined: 15 Aug 2003
Posts: 3470
Followers: 60

Kudos [?]: 665 [1] , given: 781

The National Association of Fire Fighters says that 45 [#permalink] New post 27 Sep 2003, 10:10
1
This post received
KUDOS
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

33% (01:00) correct 67% (02:42) wrong based on 7 sessions
13. The National Association of Fire Fighters says that 45 percent of homes now have smoke detectors, whereas only 30 percent of homes had them 10 years ago. This makes early detection of house fires no more likely, however, because over half of the domestic smoke detectors are either without batteries or else inoperative for some other reason.

In order for the conclusion above to be properly drawn, which one of the following assumptions would have to be made?

(A) Fifteen percent of domestic smoke detectors were installed less than 10 years ago.

(B) The number of fires per year in homes with smoke detectors has increased.

(C) Not all of the smoke detectors in homes are battery operated.

(D) The proportion of domestic smoke detectors that are inoperative has increased in the past ten years.

(E) Unlike automatic water sprinklers, a properly functioning smoke detector cannot by itself increase fire safety in a home.
SVP
SVP
User avatar
Joined: 03 Feb 2003
Posts: 1613
Followers: 5

Kudos [?]: 43 [0], given: 0

 [#permalink] New post 27 Sep 2003, 11:41
I vote for D. If the proportion of domestic smoke detectors that are inoperative had decreased in the past ten years, then this would have made early detection of house fires more likely.
SVP
SVP
User avatar
Joined: 03 Feb 2003
Posts: 1613
Followers: 5

Kudos [?]: 43 [0], given: 0

 [#permalink] New post 28 Sep 2003, 10:31
The negation rule really works.
  [#permalink] 28 Sep 2003, 10:31
    Similar topics Author Replies Last post
Similar
Topics:
Environmentalists associated with the United Nations ayushee01 0 06 Jul 2014, 04:10
fire fighter toiysam 8 11 Feb 2011, 10:56
Experts publish their posts in the topic Environmentalists associated with the United Nations kissthegmat 3 15 Aug 2010, 19:46
The National Association of Fire Fighters says that 45 dwivedys 12 15 Aug 2006, 21:38
If the salary cap of the National Basketball Association gayathri 6 09 Nov 2004, 16:37
Display posts from previous: Sort by

The National Association of Fire Fighters says that 45

  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®.