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

It is currently 25 Aug 2016, 19:28
GMAT Club Tests

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

It is now known that to get the maximum out of a car engine

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

Hide Tags

2 KUDOS received
Moderator
Moderator
User avatar
Status: It always seems impossible until it's done!!
Joined: 29 Aug 2012
Posts: 674
Location: India
GMAT 1: 680 Q47 V34
Followers: 59

Kudos [?]: 877 [2] , given: 215

GMAT ToolKit User Premium Member Reviews Badge CAT Tests
It is now known that to get the maximum out of a car engine [#permalink]

Show Tags

New post 18 Nov 2013, 10:30
2
This post received
KUDOS
4
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

63% (02:14) correct 37% (01:28) wrong based on 240 sessions

HideShow timer Statistics

It is now known that to get the maximum out of a car engine one can do two things- use high octane fuel, which contains additives that extend the life and efficiency of the engine, or get the engine flushed at regular intervals, which removes all harmful substances from the engine. It has been shown by several studies that the use of high octane fuel is up to three times more effective in extending the life of the car engine than is the use of engine flushing. This does not, however, mean that engine flushing can play no role in extending the life of a car engine, because ______________________.

Which of the following logically completes the argument?

A) some studies have shown that using high octane fuel can lead to problems with a car's exhaust system.
B) high octane fuel costs much more than regular fuel and this cost is expected to increase even further over the next few years.
C) many car mechanics recommend the use of engine flushing over the use of high octane fuels.
D) the benefits of using high octane fuel are independent of the benefits of engine flushing.
E) Engine flushing when not done by expert mechanics, can cause permanent damage to the engine of the car.
[Reveal] Spoiler: OA

_________________

Become a GMAT Club Premium member to avail lot of discounts

Expert Post
Magoosh GMAT Instructor
User avatar
Joined: 28 Dec 2011
Posts: 3309
Followers: 1124

Kudos [?]: 4928 [0], given: 54

Re: It is now known that to get the maximum out of a car engine [#permalink]

Show Tags

New post 19 Nov 2013, 11:55
Expert's post
2
This post was
BOOKMARKED
Gnpth wrote:
It is now known that to get the maximum out of a car engine one can do two things- use high octane fuel, which contains additives that extend the life and efficiency of the engine, or get the engine flushed at regular intervals, which removes all harmful substances from the engine. It has been shown by several studies that the use of high octane fuel is up to three times more effective in extending the life of the car engine than is the use of engine flushing. This does not, however, mean that engine flushing can play no role in extending the life of a car engine, because ______________________.

Which of the following logically completes the argument?

A) some studies have shown that using high octane fuel can lead to problems with a car's exhaust system.
B) high octane fuel costs much more than regular fuel and this cost is expected to increase even further over the next few years.
C) many car mechanics recommend the use of engine flushing over the use of high octane fuels.
D) the benefits of using high octane fuel are independent of the benefits of engine flushing.
E) Engine flushing when not done by expert mechanics, can cause permanent damage to the engine of the car.

Dear Gnpth,
I'm happy to help with this. :-)

First of all, here's a blog about complete-the-argument CR questions:
http://magoosh.com/gmat/2012/gmat-logic ... -argument/

In the penultimate sentence, we are told of the benefits of high octane fuel, so it's clear that use of high octane fuel is recommended. Then the last sentence suggests that engine flushing is also recommended --- in other words, a responsible car-owner should do both. We need a reason why a responsible car-owner should do both, instead of just one or the other.

(A) some studies have shown that using high octane fuel can lead to problems with a car's exhaust system.
A problem with high octane fuels --- this would cause us to re-think the penultimate sentence. It is not a reason to use both.

(B) high octane fuel costs much more than regular fuel and this cost is expected to increase even further over the next few years.
This would dissuade folks from using high octane fuels, but not necessarily for reasons related to what's best for the engine. This is irrelevant.

(C) many car mechanics recommend the use of engine flushing over the use of high octane fuels.
First of all, mechanics recommend this presumably because they get paid for the service of flushing the engine, but they don't stand to gain if car-owners buy high octane fuels at the pump. More importantly, this contradicts the penultimate sentence, so it is not a good conclusion.

(D) the benefits of using high octane fuel are independent of the benefits of engine flushing.
BINGO! If the benefits are independent, then that's an excellent reason to do both, because doing just one would provide none of the benefits of doing the other.

(E) Engine flushing when not done by expert mechanics, can cause permanent damage to the engine of the car.
This may be, be no one is recommending not having it done by an expert. This is irrelevant.

Choice (D) is the best answer here.
Mike :-)
_________________

Mike McGarry
Magoosh Test Prep

Image

Image

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 01 Oct 2013
Posts: 9197
Followers: 801

Kudos [?]: 165 [0], given: 0

Premium Member
Re: It is now known that to get the maximum out of a car engine [#permalink]

Show Tags

New post 22 Dec 2014, 10:58
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.
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 01 Oct 2013
Posts: 9197
Followers: 801

Kudos [?]: 165 [0], given: 0

Premium Member
Re: It is now known that to get the maximum out of a car engine [#permalink]

Show Tags

New post 11 Jun 2016, 22:09
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.
Re: It is now known that to get the maximum out of a car engine   [#permalink] 11 Jun 2016, 22:09
    Similar topics Author Replies Last post
Similar
Topics:
13 Experts publish their posts in the topic Conclusion 700: Get the knives out! souvik101990 7 21 Aug 2014, 12:54
Manufacturers of motor oil for car engines have found avohden 2 23 Nov 2013, 14:24
5 Canadians now increasingly engage in out-shopping, which is skg 18 10 Sep 2009, 12:40
Canadians now increasingly engage in out shopping, which is milind1979 9 29 Mar 2009, 18:27
Canadians now increasingly engage in out-shopping govinam 16 14 Sep 2006, 18:13
Display posts from previous: Sort by

It is now known that to get the maximum out of a car engine

  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 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®.