Dirt roads : GMAT Sentence Correction (SC)
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Senior Manager
Joined: 29 Jan 2011
Posts: 367
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26 Jun 2011, 23:30
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45% (medium)

Question Stats:

51% (01:57) correct 49% (01:19) wrong based on 80 sessions

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I sometimes get confused with these kinds of comparision.
Can someone please tell me how is dirt roads maintenance compared correctly to paved roads maintenance in B and not in other? How can we verify if something is being compared correctly here? Is there a substitution method I can use to verify?

I understand that in A there is incorrect comparison between dirt roads & paved roads since paved roads maintenence is compared to dirt roads costs...

But in C,D,E i am having hard time finding comparison error ...

Dirt roads may evoke the bucolic simplicity of another
century, but financially strained townships point out
that dirt roads cost twice as much as maintaining

(A) dirt roads cost twice as much as maintaining
(B) dirt roads cost twice as much to maintain as
(C) maintaining dirt roads costs twice as much as
(D) maintaining dirt roads costs twice as much as it
(E) to maintain dirt roads costs twice as much as
[Reveal] Spoiler: OA
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Senior Manager
Joined: 29 Jan 2011
Posts: 367
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Kudos [?]: 201 [1] , given: 87

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27 Jun 2011, 00:20
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sudhir18n wrote:
siddhans wrote:
I sometimes get confused with these kinds of comparision.
How can we verify if something is being compared correctly here? Is there a substitution method I can use to verify?

I understand that in A there is incorrect comparison between dirt roads & paved roads since paved roads maintenence is compared to dirt roads costs...

But in C,D,E i am having hard time finding comparison error ...

Dirt roads may evoke the bucolic simplicity of another
century, but financially strained townships point out
that dirt roads cost twice as much as maintaining

(A) dirt roads cost twice as much as maintaining
(B) dirt roads cost twice as much to maintain as
paved roads do..... Correct comparison .. verb 'do' at the end is very important.. without this 'do' the comparison is incomplete. U can also read it like " as X as Y' ....
(C) maintaining dirt roads costs twice as much as
(D) maintaining dirt roads costs twice as much as it
does for paved roads..."it" pronoun has no clear reference. I liked the sentence better than B , except for 'it'
(E) to maintain dirt roads costs twice as much as
for paved roads........ same as C

Hi Sudhir,

I sometimes get confused with these kinds of comparision.
Can you please tell me how is dirt roads maintenance compared correctly to paved roads maintenance in B and not in other? How can we verify if something is being compared correctly here? Is there a substitution method I can use to verify?

I understand that in A there is incorrect comparison between dirt roads & paved roads since paved roads maintenence is compared to dirt roads costs...

But in C,D,E i am having hard time finding comparison error ...
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12 Sep 2014, 17:39
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).

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