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A Mars rover is an automated motor vehicle which propels itself across

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A Mars rover is an automated motor vehicle which propels itself across  [#permalink]

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New post 07 Oct 2018, 00:33
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A
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Difficulty:

  55% (hard)

Question Stats:

55% (01:16) correct 45% (01:17) wrong based on 152 sessions

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A Mars rover is an automated motor vehicle which propels itself across the surface of the planet Mars, gathering observations about the territory and conditions on Mars helping scientists determine whether life ever existed there.

(A) conditions on Mars helping
(B) conditions on Mars, with information helping
(C) conditions on Mars that help
(D) conditions on Mars, information that will help
(E) conditions on Mars, those that helped

source - CrackVerbal

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A Mars rover is an automated motor vehicle which propels itself across  [#permalink]

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New post 07 Oct 2018, 01:30
aragonn wrote:
A Mars rover is an automated motor vehicle which propels itself across the surface of the planet Mars, gathering observations about the territory and conditions on Mars helping scientists determine whether life ever existed there.

(A) conditions on Mars helping
(B) conditions on Mars, with information helping
(C) conditions on Mars that help
(D) conditions on Mars, information that will help
(E) conditions on Mars, those that helped

source - CrackVerbal


(A) conditions on Mars helping
The verb+ing without comma is modifying Mars , the statement therefore means that Mars is helping scientists determine whether life ever existed there
--incorrect

(B) conditions on Mars, with information helping
with means alongside , the statement means gathering observations alongside helping determine whether life ever existed there
The construction is awkward and the sentence can be constructed in a better way.
--incorrect

(C) conditions on Mars that help
The essential modifier that is modifying Mars , essentially saying the same thing as A
--incorrect

(D) conditions on Mars, information that will help
Conveys the correct meaning that the information will help...
--Correct

(E) conditions on Mars, those that helped
What does "those" is referring to
moreover the past "helped" is incorrect
--incorrect

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Re: A Mars rover is an automated motor vehicle which propels itself across  [#permalink]

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New post 07 Oct 2018, 01:33
+1 for D

the noun+noun modifier rightly modifies the preceding clause.
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Re: A Mars rover is an automated motor vehicle which propels itself across  [#permalink]

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New post 08 Oct 2018, 05:41

Official Explanation:



Answer - D
Concepts tested: Modifiers


A - Semantic error – the sentence implies that the territory and conditions on Mars can themselves help scientists determine whether life ever existed there. The observations about these are what will help scientists determine whether life ever existed there.
B - The use of ‘with’ is incorrect as it tampers with the meaning – not clear that the information that will help scientists is the information about territory and conditions on Mars.
C – Same as A
D – This option uses the right modifier and gives the right sense.
E - Tense mismatch – there is a shift from present to past; additionally, it is not clear what the antecedent of ‘those’ is – it can refer to ‘conditions’, ‘territory and conditions’, or ‘observations’. Thus, D is the right answer.
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Thanks!
Do give some kudos.

Simple strategy:
“Once you’ve eliminated the impossible, whatever remains, however improbable, must be the truth.”

Want to improve your Score:
GMAT Ninja YouTube! Series 1| GMAT Ninja YouTube! Series 2 | How to Improve GMAT Quant from Q49 to a Perfect Q51 | Time management

My Notes:
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A Mars rover is an automated motor vehicle which propels itself across  [#permalink]

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New post 12 Apr 2019, 16:01
aragonn wrote:
A Mars rover is an automated motor vehicle which propels itself across the surface of the planet Mars, gathering observations about the territory and conditions on Mars helping scientists determine whether life ever existed there.

(A) conditions on Mars helping
(B) conditions on Mars, with information helping
(C) conditions on Mars that help
(D) conditions on Mars, information that will help
(E) conditions on Mars, those that helped

source - CrackVerbal



Hi aragonn

This question has something error according to GMAT. 'which' must be preceded by comma. Hence, is not viable to see such construction.
"A Mars rover is an automated motor vehicle which propels itself across the surface of the planet Mars"
GMAT Club Bot
A Mars rover is an automated motor vehicle which propels itself across   [#permalink] 12 Apr 2019, 16:01
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