It is currently 25 Feb 2018, 11:50

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

Automobiles use 50 percent of all energy consumed in the United States

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

Hide Tags

VP
VP
User avatar
V
Status: Preparing for the GMAT
Joined: 02 Nov 2016
Posts: 1369
Location: Pakistan
GPA: 3.4
Premium Member
Automobiles use 50 percent of all energy consumed in the United States [#permalink]

Show Tags

New post 30 Apr 2017, 10:25
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

68% (00:56) correct 32% (01:24) wrong based on 119 sessions

HideShow timer Statistics

Source: Nova GMAT

Automobiles use 50 percent of all energy consumed in the United States. Since Congress has passed legislation requiring all cars built after 2002 to be twice as energy-efficient, eventually automobiles will consume only 25 percent.

The argument makes which of the following assumptions?

(A) Electric cars will not become widely available before 2002.
(B) The public will not be buying twice as many cars in 2002 as it is currently.
(C) As cars become more energy-efficient, the public does not increase its use of cars.
(D) Cars will actually be three times as energyefficient in 2002.
(E) Cars will not be significantly more expensive in 2002.
[Reveal] Spoiler: OA

_________________

Official PS Practice Questions
Press +1 Kudos if this post is helpful

1 KUDOS received
Board of Directors
User avatar
V
Status: Stepping into my 10 years long dream
Joined: 18 Jul 2015
Posts: 3092
Premium Member Reviews Badge
Re: Automobiles use 50 percent of all energy consumed in the United States [#permalink]

Show Tags

New post 30 Apr 2017, 10:34
1
This post received
KUDOS
We are given currently cars use 50% of emery produced. A new law requires all acrs built after 2002 be twice efficient, hence the consumption should be reduced to half. Provided they are not increasing their use.

(A) Electric cars will not become widely available before 2002. : Irrelevant.
(B) The public will not be buying twice as many cars in 2002 as it is currently. Trap choice. Notice, we are given in 2002. But the law is for cars after 2002. Hence, this is incorrect
(C) As cars become more energy-efficient, the public does not increase its use of cars.: As per our pre thinking. Hence, correct
(D) Cars will actually be three times as energy efficient in 2002. Irrelevant.
(E) Cars will not be significantly more expensive in 2002. Price is Irrelevant.
_________________

How I improved from V21 to V40! ?


How to use this forum in THE BEST way?

Top Contributor
2 KUDOS received
Director
Director
User avatar
S
Affiliations: CrackVerbal
Joined: 03 Oct 2013
Posts: 518
Location: India
GMAT 1: 780 Q51 V46
Re: Automobiles use 50 percent of all energy consumed in the United States [#permalink]

Show Tags

New post 01 May 2017, 20:27
2
This post received
KUDOS
Top Contributor
let us simplify the reasoning given --

% of energy consumed by automobiles = (Average energy consumed by each automobile * No. of automobiles) / (Total energy produced)

We are told that this quantity is currently 50%.

However, we are told that efficiency of each car will increase by a factor of 2.

From this the author makes the assumption that Average energy consumed by each automobile would also be halved.

this makes the assumption that --
1. The amount of fuel consumed/amount of miles driven would be the same -- only then would the average energy consumed would drop by a factor of 2.

Other assumptions concern other terms. We also assume that --
2. No. of automobiles would not change much
3. Total energy produced would not change much

Any answer option that talks about any one of these assumptions should be the correct answer.

Option A - Incorrect
Electric cars do consume energy. We are talking about all automobiles.

Option B - Incorrect
Even if it does, this talks about "2002". However, the conclusion -- eventually automobiles will consume only 25 percent -- talks about the future.

Option C - Correct
This is the same as point #1. If the public does increase its usage of automobiles, then we CANNOT say that average energy consumed by each automobile would reduce.

Option D - Incorrect
We are talking about all cars since 2002, not just ONLY those in 2002.

Option E - Incorrect
We are talking about all cars since 2002, not just ONLY those in 2002.
_________________

Join Free 4 part MBA Through GMAT Video Training Series here -
https://gmat.crackverbal.com/mba-through-gmat-video-2018

Enroll for our GMAT Trial Course here -
http://gmatonline.crackverbal.com/

For more info on GMAT and MBA, follow us on @AskCrackVerbal

Re: Automobiles use 50 percent of all energy consumed in the United States   [#permalink] 01 May 2017, 20:27
Display posts from previous: Sort by

Automobiles use 50 percent of all energy consumed in the United States

  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®.