Last visit was: 03 Jun 2026, 02:57 It is currently 03 Jun 2026, 02:57
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
User avatar
JCLEONES
Joined: 01 Nov 2007
Last visit: 13 Jan 2017
Posts: 93
Own Kudos:
Posts: 93
Kudos: 2,615
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
abhi426
Joined: 21 Oct 2005
Last visit: 26 Mar 2008
Posts: 32
Own Kudos:
Posts: 32
Kudos: 129
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
rafiaiqbal
Joined: 21 Dec 2007
Last visit: 07 Jun 2008
Posts: 47
Own Kudos:
Posts: 47
Kudos: 15
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
tarek99
Joined: 21 Jul 2006
Last visit: 15 Feb 2026
Posts: 765
Own Kudos:
Given Kudos: 1
Posts: 765
Kudos: 5,137
Kudos
Add Kudos
Bookmarks
Bookmark this Post
E for me too
User avatar
GMATBLACKBELT
Joined: 29 Mar 2007
Last visit: 03 Jun 2013
Posts: 1,138
Own Kudos:
Posts: 1,138
Kudos: 1,923
Kudos
Add Kudos
Bookmarks
Bookmark this Post
JCLEONES
Nitrogen dioxide is a pollutant emitted by automobiles. Catalytic converters, devices
designed to reduce nitrogen dioxide emissions, have been required in all new cars in
Donia since 1993, and as a result, nitrogen dioxide emissions have been significantly
reduced throughout most of the country. Yet although the proportion of new cars in Donia’s capital city has always been comparatively high, nitrogen dioxide emissions
there have showed only an insignificant decline since 1993.

Which of the following, if true, most helps to explain the insignificant decline in nitrogen
dioxide emissions in Donia’s capital city?

A. More of the cars in Donia’s capital city were made before 1993 than after 1993.
B. The number of new cars sold per year in Donia has declined slightly since 1993.
C. Pollutants other than nitrogen dioxide that are emitted by automobiles have also
been significantly reduced in Donia since 1993.
D. Many Donians who own cars made before 1993 have had catalytic converters
installed in their cars.
E. Most car trips in Donia’s capital city are too short for the catalytic converter to
reach its effective working temperature.

A: this is a very weak answer. i wouldnt cross it off just yet.
B: doesnt help explain anything
C: irrelevant
D: seems to make the paradox more confusing.

E: is def a good answer. Also b/c it says MOST this is a better answer than A which only says more. How many more? 1, 100billion? doesnt really help that much when compared to E.



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Critical Reasoning (CR) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
Moderators:
GMAT Club Verbal Expert
7394 posts
645 posts