GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 20 Jul 2018, 00:06

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

QOTD: NASA’s methodical approach to the exploration of Mars has

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

Hide Tags

Expert Post
1 KUDOS received
MBA Section Director
User avatar
V
Joined: 19 Mar 2012
Posts: 5126
Location: India
GMAT 1: 760 Q50 V42
GPA: 3.8
WE: Marketing (Non-Profit and Government)
QOTD: NASA’s methodical approach to the exploration of Mars has  [#permalink]

Show Tags

New post 21 Nov 2017, 14:39
1
2
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

83% (01:16) correct 17% (01:18) wrong based on 246 sessions

HideShow timer Statistics

Verbal Question of The Day: Day 160: Sentence Correction


Subscribe to GMAT Question of the Day: E-mail | RSS
For All QOTD Questions Click Here

NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid planet.

(A) and whether, presuming such life forms having left fossil traces to begin with, those traces can

(B) and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces

(C) and whether, presuming such life forms left fossil traces to begin with, those traces

(D) and, presuming such life forms did leave some fossil traces to begin with, if they can

(E) and, presuming such life forms to have left fossil traces to begin with, if they

https://www.nytimes.com/1999/09/21/science/beginning-a-bargain-basement-invasion-of-mars.html

Eventual objectives are to return samples of rock and soil, perhaps by 2008, and someday send astronauts for a long visit. Behind this methodical approach is the enduring question of whether life ever emerged on Mars and left some fossil traces, and whether it still exists in some moist recesses of this cold, arid world.


Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.

_________________

Have an MBA application Question? ASK ME ANYTHING!

My Stuff: Four Years to 760 | MBA Trends for Indian Applicants

My GMAT Resources
V30-V40: How to do it! | GMATPrep SC | GMATPrep CR | GMATPrep RC | Critical Reasoning Megathread | CR: Numbers and Statistics | CR: Weaken | CR: Strengthen | CR: Assumption | SC: Modifier | SC: Meaning | SC: SV Agreement | RC: Primary Purpose | PS/DS: Numbers and Inequalities | PS/DS: Combinatorics and Coordinates

My MBA Resources
Everything about the MBA Application | Over-Represented MBA woes | Fit Vs Rankings | Low GPA: What you can do | Letter of Recommendation: The Guide | Indian B Schools accepting GMAT score | Why MBA?

My Reviews
Veritas Prep Live Online

Intern
Intern
avatar
B
Joined: 12 Oct 2016
Posts: 5
GMAT 1: 660 Q47 V35
Re: QOTD: NASA’s methodical approach to the exploration of Mars has  [#permalink]

Show Tags

New post 21 Nov 2017, 18:35
IMO C

A - having left fossil traces : awkward
B - whether....can those traces : incorrect
D ,E - if they.. : ambiguous pronoun reference.
So, C.
BSchool Forum Moderator
User avatar
D
Joined: 28 Mar 2017
Posts: 1044
Location: India
Concentration: Finance, Technology
GMAT 1: 730 Q49 V41
GPA: 4
CAT Tests
Re: QOTD: NASA’s methodical approach to the exploration of Mars has  [#permalink]

Show Tags

New post 21 Nov 2017, 23:29
Awaiting OA

NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid planet.

A. and whether, presuming such life forms having left fossil traces to begin with, those traces can
Traces can? Having left?

B. and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces
Whether can ? Redundancy

C. and whether, presuming such life forms left fossil traces to begin with, those traces
Correct

D. and, presuming such life forms did leave some fossil traces to begin with, if they can
Whether if? Redundancy

E. and, presuming such life forms to have left fossil traces to begin with, if they
Whether if? Redundancy
_________________

Kudos if my post helps!

Long And A Fruitful Journey - V21 to V41; If I can, So Can You!!


Preparing for RC my way


My study resources:
1. Useful Formulae, Concepts and Tricks-Quant
2. e-GMAT's ALL SC Compilation
3. LSAT RC compilation
4. Actual LSAT CR collection by Broal
5. QOTD RC (Carcass)
6. Challange OG RC
7. GMAT Prep Challenge RC

Expert Post
Top Contributor
Retired Moderator
User avatar
P
Status: worked for Kaplan's associates, but now on my own, free and flying
Joined: 19 Feb 2007
Posts: 4460
Location: India
WE: Education (Education)
Re: QOTD: NASA’s methodical approach to the exploration of Mars has  [#permalink]

Show Tags

New post 22 Nov 2017, 04:14
Top Contributor
Just looking at the grammar and structure alone,

A. and whether, presuming such life forms having left fossil traces, to begin with, those traces can --- having left is wrong diction, we need a verb rather than a participle here.

B. and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces -- use of whether and if in the same clause is incongruous.

C. and whether, presuming such life forms left fossil traces to begin with, those traces -- the correct choice

D. and, presuming such life forms did leave some fossil traces to begin with, if they can -- 1. The use of the conditional is wrong'. We have a dilemma here and therefore, only 'whether' is the correct diction.

E. and, presuming such life forms to have left fossil traces to begin with, if they-- the same problem as in D.

The only nagging doubt is whether the modifier clause in the second part starting with 'presuming can modify 'those traces' in C as well as A?
_________________

you can know a lot about something and not really understand it."-- a quote
No one knows this better than a GMAT student does.
Narendran +9198845 44509

Senior Manager
Senior Manager
avatar
S
Joined: 29 Jun 2017
Posts: 343
Re: QOTD: NASA’s methodical approach to the exploration of Mars has  [#permalink]

Show Tags

New post 22 Nov 2017, 06:43
souvik101990 wrote:

Verbal Question of The Day: Day 160: Sentence Correction


Subscribe to GMAT Question of the Day: E-mail | RSS
For All QOTD Questions Click Here


NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms having left fossil traces to begin with, those traces can still exist in some moist recesses of the cold and arid planet.

A. and whether, presuming such life forms having left fossil traces to begin with, those traces can

B. and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces

C. and whether, presuming such life forms left fossil traces to begin with, those traces

D. and, presuming such life forms did leave some fossil traces to begin with, if they can

E. and, presuming such life forms to have left fossil traces to begin with, if they

Every question of the day will be followed by an expert reply by GMATNinja in 12-15 hours. Stay tuned! Post your answers and explanations to earn kudos.


this is high point of grammar. if we know this point, the problem is easy. I dont like this problem because it test non basic point.

normally, doing has two uses. one is gerund which refer to general action and has some but not all features of noun. gerund normally is subject or object in a sentence. the second is participle which refer to a noun in sentence and has some but not all , features of verb. participle normally is adverb.

in this problem, "presuming" has some feature of verb and can be called participle because presuming is an adverb. but , the most supprising thing of this participle is that "presuming" dose not refer to a noun in the sentence . the implication is that we are presuming.

so, doing works as an adverb , and, so, is participle can refer to no noun in the sentence. This is the point.

only if you can differentiate between gerund and participle, you can understand the special case of participle.
Expert Post
1 KUDOS received
GMAT Club Verbal Expert
User avatar
P
Status: GMAT and GRE tutor
Joined: 13 Aug 2009
Posts: 1830
Location: United States
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170
Re: QOTD: NASA’s methodical approach to the exploration of Mars has  [#permalink]

Show Tags

New post 22 Nov 2017, 20:51
1
Quote:
A. and whether, presuming such life forms having left fossil traces to begin with, those traces can

The parallelism looks pretty OK to me here. "NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether... those traces can still exist....

The trouble appears to be that pesky little modifier in the middle of the underlined portion: "...presuming such life forms having left fossil traces to begin with..." It would be fine to say "presuming such life forms left fossil traces to begin with" -- but I can't make any sense of the phrase "having left" in this case. You could say something like "having left a mess in his pigpen, Wilbur proudly trotted off to make a mess somewhere else" -- the "having + verb" needs to be the first of two actions, as it is in my silly example. But I can't come up with any interpretation of "having left" in (A) that would make any sense at all, especially when one of the answer choices is clearly much better.

Plus, there's no good reason to use the word "can" in this situation. Is NASA trying to figure out whether the fossil traces can still exist -- or does NASA just want to know whether the fossil traces actually still exist? I'd argue for the latter.

So we can get rid of (A).

Quote:
B. and whether, if it is presumed that such life forms left some fossil traces to begin with, can those traces

Well, this is a hot mess: "NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether... can those traces still exist.... Um... "whether can those traces"? Seriously? That's ridiculous -- and the word "can" doesn't make any sense in this context anyway, as discussed in answer choice (A).

The modifier in the middle of the underlined portion is a much smaller problem, but it's still a problem: "if it is presumed" isn't nearly as clean as just "presuming." But that's a minor issue.

(B) is out.

Quote:
C. and whether, presuming such life forms left fossil traces to begin with, those traces

Much better! The heart of the parallelism is completely fine here: "NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether... those traces still exist.... No problem. And it's great that the word "can" has been removed, too.

The modifier in the middle of the underlined portion is also much better than the versions in (A) and (B): "presuming such life forms left fossil traces to begin with" makes sense here. Or at least more sense than the alternatives. Keep (C).

Quote:
D. and, presuming such life forms did leave some fossil traces to begin with, if they can

We have some issues here, even if we ignore that modifier in the middle of the underlined portion: "NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and...if they can still exist.... The first problem is that there's no good reason to use "if" after the "and." I suppose that you could argue that it's not parallel to "whether", but more importantly, I'm pretty sure that "if" can only be used in a conditional statement (otherwise known as an "if-then statement": "if I eat fourteen dosas and seven kati rolls, then I will be happy...") on the GMAT, and (D) isn't a conditional statement. In these situations, the GMAT always seems to prefer "whether" over "if."

Plus, you could argue that the pronoun "they" is ambiguous, because it could plausibly refer back to "life forms" or "fossil traces." Pronoun ambiguity isn't an absolute rule on the GMAT, but it's also not ideal if you can avoid it.

And then we still have the issue with the word "can", as described in (A). So we can get rid of (D), too.

Quote:
E. and, presuming such life forms to have left fossil traces to begin with, if they

(E) has two of the same errors as (D): "they" is arguably ambiguous and "if" is not as good an option as "whether." Plus, there's no reason to say "presuming such life forms to have left fossil traces to begin with." Just "left" would have been fine.

So (E) can be ditched, and (C) is the best we can do.
_________________

GMAT Club Verbal Expert | GMAT/GRE tutor @ www.gmatninja.com (Now hiring!) | GMAT blog | Food blog | Notoriously bad at PMs

Beginners' guides to GMAT verbal
Reading Comprehension | Critical Reasoning | Sentence Correction

YouTube LIVE verbal webinars
Series 1: Fundamentals of SC & CR | Series 2: Developing a Winning GMAT Mindset

SC & CR Questions of the Day (QOTDs), featuring expert explanations
All QOTDs | Subscribe via email | RSS

Need an expert reply?
Hit the request verbal experts' reply button -- and please be specific about your question. Feel free to tag @GMATNinja and @GMATNinjaTwo in your post. Priority is always given to official GMAT questions.

Sentence Correction articles & resources
How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

Reading Comprehension, Critical Reasoning, and other articles & resources
All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

Re: QOTD: NASA’s methodical approach to the exploration of Mars has &nbs [#permalink] 22 Nov 2017, 20:51
Display posts from previous: Sort by

QOTD: NASA’s methodical approach to the exploration of Mars has

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  

Events & Promotions

PREV
NEXT


GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.