Because the population

Expert replies

atulmangal: Legendary Member; Posts: 1112; Joined: Sat Feb 26, 2011 11:16 amFollowed by: 49 members; Thanked: 77 times

by atulmangal » Fri Jun 03, 2011 10:31 am

Princeton Review:

Because the population is denser there and the automobile is therefore inefficient as a means of transportation, a commuter rail system serving a given population is usually five times more efficient in a European city than it is in an American city.

A. serving a given population is usually five times more efficient in a European city than it is in an American city

B. serving a given population will usually be five times more efficient if it is placed in a European city instead of an American city

C. will usually be five times more efficient in a European city than one serving a comparable population in an American city

D. in a European city will usually be five times more efficient than will a system serving a comparable population in an American city

E. that is implemented in a European city will usually be five times more efficient than if it is implemented with a comparable population in an American city

Like this post

Source: Beat The GMAT — Sentence Correction | Fri Jun 03, 2011 10:31 am

Frankenstein: Legendary Member; Posts: 1448; Joined: Tue May 17, 2011 9:55 amFollowed by: 53 members; Location: India; Thanked: 375 times

by Frankenstein » Fri Jun 03, 2011 10:37 am

Hi,
IMO D . OA plz?

Cheers!

Things are not what they appear to be... nor are they otherwise

Like this post

divya23: Master | Next Rank: 500 Posts; Posts: 113; Joined: Mon Apr 26, 2010 8:58 amFollowed by: 14 members; Thanked: 2 times

by divya23 » Fri Jun 03, 2011 10:37 am

IMO D

Like this post

Ozlemg: Master | Next Rank: 500 Posts; Posts: 407; Joined: Tue Jan 25, 2011 9:19 amFollowed by: 7 members; Thanked: 25 times

by Ozlemg » Fri Jun 03, 2011 1:52 pm

IMO C

Because D violates the precision rule.

No need to repeat the bold words again.

"...in a European city will usually be five times more efficient than will a system serving a comparable population in an American city

The more you suffer before the test, the less you will do so in the test!

Like this post

sameerballani: Legendary Member; Posts: 544; Joined: Mon Dec 27, 2010 8:10 amFollowed by: 2 members; Thanked: 45 times

by sameerballani » Fri Jun 03, 2011 3:16 pm

IMO C

Like this post

atulmangal: Legendary Member; Posts: 1112; Joined: Sat Feb 26, 2011 11:16 amFollowed by: 49 members; Thanked: 77 times

by atulmangal » Fri Jun 03, 2011 6:50 pm

OA is D guys

Like this post

gsinghal: Senior | Next Rank: 100 Posts; Posts: 68; Joined: Sun Apr 11, 2010 3:22 amFollowed by: 1 member

by gsinghal » Fri Jun 03, 2011 8:17 pm

I was b/w C & D but chose C.
Wats the issue with C???

Thanks
Gautam

Like this post

sameerballani: Legendary Member; Posts: 544; Joined: Mon Dec 27, 2010 8:10 amFollowed by: 2 members; Thanked: 45 times

by sameerballani » Fri Jun 03, 2011 11:11 pm

atulmangal wrote:Princeton Review:

Because the population is denser there and the automobile is therefore inefficient as a means of transportation, a commuter rail system serving a given population is usually five times more efficient in a European city than it is in an American city.

C. will usually be five times more efficient in a European city than one serving a comparable population in an American city

D. in a European city will usually be five times more efficient than will a system serving a comparable population in an American city

Even i chose option C, but OA is option D

it can be because of the fact that D maintains that in both the places the system WILL be implemented in future. Whereas in C it compares future implementation of a system with a system that is currently present in american city.

any other explanation, Expert comments..

Like this post

aspirant2011: Legendary Member; Posts: 1574; Joined: Fri Jan 28, 2011 2:52 amFollowed by: 13 members; Thanked: 88 times

by aspirant2011 » Sat Jun 04, 2011 9:13 am

I think option C is wrong because initial part of the sentence talks about future with the usage of "will" and latter part talks about the present i.e "serving".............In D usage of "will" in both Initial and latter part of the sentence makes it parallel

Like this post

VivianKerr: GMAT Instructor; Posts: 1035; Joined: Fri Dec 17, 2010 11:13 amFollowed by: 365 members; Location: Los Angeles, CA; Thanked: 474 times

by VivianKerr » Thu Jun 09, 2011 6:51 pm

IMO: D

We need a predicate verb here instead of "serving".

Because of X, Y ____. The blank needs to be an appropriate verb, so A and B can be eliminated.

Comparing the remaining choices, E is unnecessarily wordy.

C makes it seem like the the rail system is more efficient because it is IN a European city. D places the prepositional phrase "in a European city" directly after the noun it modifies.

Vivian Kerr
GMAT Rockstar, Tutor
https://www.GMATrockstar.com
https://www.yelp.com/biz/gmat-rockstar-los-angeles

Former Kaplan and Grockit instructor, freelance GMAT content creator, now offering affordable, effective, Skype-tutoring for the GMAT at $150/hr. Contact: [email protected]

Thank you for all the "thanks" and "follows"!

Like this post

VivianKerr: GMAT Instructor; Posts: 1035; Joined: Fri Dec 17, 2010 11:13 amFollowed by: 365 members; Location: Los Angeles, CA; Thanked: 474 times

by VivianKerr » Thu Jun 09, 2011 6:57 pm

Check out this similar question from the OG:

Because the earth's crust is more solid there and thus better able to transmit shock waves, an earthquake of a given magnitude typically devastates an area 100 times greater in the eastern US than it does in the west.

B. of a given magnitude will typically devastate 100 times the area if it occurs in the eastern US instead of the west.

C. will typically devastate 100 times the area in the eastern US than one of comparable magnitude occuring in the west.

D. in the eastern US will typically devastate an area 100 times greater than will a quake of comparable magnitude occuring in the west.

E. that occurs in the eastern US will typically devastate 100 times more area than if it occurred with comparable magnitude in the west.

This question follows the same logic.

Like this post

abhishek.pati: Senior | Next Rank: 100 Posts; Posts: 83; Joined: Mon Apr 25, 2011 11:27 am; Thanked: 1 times

by abhishek.pati » Sat Jun 11, 2011 11:27 pm

@Vivian--- is the answer D for the question posted.

Like this post

vikram4689: Legendary Member; Posts: 1325; Joined: Sun Nov 01, 2009 6:24 amFollowed by: 14 members; Thanked: 105 times

by vikram4689 » Sun Jun 12, 2011 12:08 am

@Vivian : i eliminated C,D because they have future tense where original sentence is talking about present.

A has a verb "is".
Construction of A: "because..<modifier>,a commuter rail system(serving..modifier)is usually five times more efficient in a European city than it(commuter rail system)is in an American city"

so A becomes: a commuter rail system is usually five times more efficient in a European city than commuter rail system is in an American city"

C makes it seem like the the rail system is more efficient because it is IN a European city

Also i think this is what sentence is saying that rail system is more efficient in European City than in American city

Premise: If you like my post
Conclusion : Press the Thanks Button

Like this post

GMATGuruNY: GMAT Instructor; Posts: 15539; Joined: Tue May 25, 2010 12:04 pmFollowed by: 1906 members; Location: New York, NY; Thanked: 13060 times; GMAT Score:790

by GMATGuruNY » Sun Jun 12, 2011 4:42 am

atulmangal wrote:Princeton Review:

Because the population is denser there and the automobile is therefore inefficient as a means of transportation, a commuter rail system serving a given population is usually five times more efficient in a European city than it is in an American city.

A. serving a given population is usually five times more efficient in a European city than it is in an American city

B. serving a given population will usually be five times more efficient if it is placed in a European city instead of an American city

C. will usually be five times more efficient in a European city than one serving a comparable population in an American city

D. in a European city will usually be five times more efficient than will a system serving a comparable population in an American city

E. that is implemented in a European city will usually be five times more efficient than if it is implemented with a comparable population in an American city

The stereo system in your room is bigger than it is in my room.

In the sentence above, the pronoun it is incorrect. One stereo system cannot be in two rooms at the same time.

For this reason, eliminate A and B in the SC above. The pronoun it implies that one rail system can be in two places at once.

In E, implemented in is not parallel with implemented with. Eliminate E.

In C, the placement of in a European city next to efficient incorrectly implies that the location of the rail system is why the rail system is efficient. Eliminate C.

The correct answer is D.

Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.

As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.

For more information, please email me (Mitch Hunt) at [email protected].
Student Review #1
Student Review #2
Student Review #3

Like this post

vikram4689: Legendary Member; Posts: 1325; Joined: Sun Nov 01, 2009 6:24 amFollowed by: 14 members; Thanked: 105 times

by vikram4689 » Sun Jun 12, 2011 5:12 am

GMATGuruNY wrote:
The stereo system in your room is bigger than it is in my room.

In the sentence above, the pronoun it is incorrect. One stereo system cannot be in two rooms at the same time.

For this reason, eliminate A and B in the SC above. The pronoun it implies that one rail system can be in two places at once.

Is it because "it" refers to exactly same entity and not a similar/generic entity at another place, Please comment if following sentences are correct.
The stereo system in your room is bigger than the stereo system in my room.
The stereo system in your room is bigger than that in my room.

In C, the placement of in a European city next to efficient incorrectly implies that the location of the rail system is why the rail system is efficient. Eliminate C.

Can you please explain how you got this meaning.

Premise: If you like my post
Conclusion : Press the Thanks Button

Like this post

Post new topic Locked

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review