It is currently 20 Jan 2018, 22:55

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

The Acoma and Hopi are probably the two oldest surviving Pueblo commun

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

Hide Tags

Manager
Manager
avatar
B
Joined: 05 Dec 2014
Posts: 211

Kudos [?]: 6 [0], given: 175

Location: India
GMAT 1: 690 Q48 V36
GPA: 3.54
CAT Tests
Re: The Acoma and Hopi are probably the two oldest surviving Pueblo commun [#permalink]

Show Tags

New post 07 Dec 2017, 21:54
GMATNinja wrote:
Quote:
And we know that COMMA + -ING modifier always modifies the entire previous clause.


Not always. "-ing" modifiers can modify an entire clause... or just a noun (see the explanation by egmat above). We could argue that "dating" modifies the Acoma and Hopi, or that it modifies "communities" -- but the difference between those two isn't terribly important, because those two are the same in this sentence, anyway.

I hope this helps!


Hi GMATNinja,
I understood why option A is correct.
I am having trouble to eliminate option B.
The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both of which have dated back at least a thousand years.

In one of the explanation in the forum regarding why B is wrong is as follows-
In B, "have dated" doesn't make sense. Dating in this sense is not something they have actually done. It's just a way of describing how old they are. We'd say "This legend dates back to the 12th century," not "This legend has dated back to the 12th century." (This issue also rules out C, with "has dated.")

Then, in a correct OA in Gmatprep,
Fossils of the arm of a sloth found in Puerto Rico in 1991, have been dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
Here, the dating also, not something the fossils do.

In another explanation,
The Acoma and Hopi are probably the two oldest surviving Pueblo communities, both dating back at least a thousand years.


It is a general fact about the two communities mentioned in the official sentence above that these communities are at least a thousand years old, a fact that cannot be changed or will not remain true in the time to come. Hence, this fact must be written either in simple present tense verb or in the form of verb-ing modifier as we in this sentence.

When an event is written in present perfect tense, it denotes that the event may change in the future.
We say: Sun rises in the east because this fact is never going to change. If we say: Sun has risen in the east, the sentence will mean that in present the Sun is rising in the east. But in future it may not do so.

But the use of present perfect is something that started in the past and its effect is there till present. How can we say that the effect wont be in the future?

Kudos [?]: 6 [0], given: 175

e-GMAT Discount CodesMath Revolution Discount CodesManhattan GMAT Discount Codes
Manager
Manager
avatar
B
Joined: 05 Dec 2014
Posts: 211

Kudos [?]: 6 [0], given: 175

Location: India
GMAT 1: 690 Q48 V36
GPA: 3.54
CAT Tests
Re: The Acoma and Hopi are probably the two oldest surviving Pueblo commun [#permalink]

Show Tags

New post 07 Dec 2017, 21:56
EducationAisle wrote:
yt770 wrote:
As per your explanation "both" is an adverb modifying dating. And we know that COMMA + -ING modifier always modifies the entire previous clause. But I am not able to understand how "dating... " can modify the previous clause. I see no relation of -ING modifier to the verb of the previous clause. Can you please explain? Thanks a ton!!

Hi yt770, there is correlation between the participial phrase (both dating back...) and the previous clause.

The clause states that the Acoma and Hopi are probably the two oldest surviving Pueblo communities; subsequently, the participial phrase elaborates to what extent these communities are old: both date back at least a thousand years.

On the other hand, had the sentence been (say):

The Acoma and Hopi considered children born into the mother's clan, both dating back at least a thousand years.

In this sentence, there is indeed no correlation between the clause and the participial phrase. Hence, use of participial phrase would be incorrect here.

p.s. Our book EducationAisle Sentence Correction Nirvana discusses these issues with participial phrases, their application and examples in significant detail. If someone is interested, PM me your email-id; I can mail the corresponding section.


Hi, can you kindly explain why B is wrong?
which correctly modifies communities. Present perfect means something happened in the past and is still ongoing.

Kudos [?]: 6 [0], given: 175

Manager
Manager
avatar
B
Joined: 05 Dec 2014
Posts: 211

Kudos [?]: 6 [0], given: 175

Location: India
GMAT 1: 690 Q48 V36
GPA: 3.54
CAT Tests
Re: The Acoma and Hopi are probably the two oldest surviving Pueblo commun [#permalink]

Show Tags

New post 07 Dec 2017, 22:59
DmitryFarber wrote:
E is a simple subject-verb issue. It should be each . . . dates.

In B, "have dated" doesn't make sense. Dating in this sense is not something they have actually done. It's just a way of describing how old they are. We'd say "This legend dates back to the 12th century," not "This legend has dated back to the 12th century." (This issue also rules out C, with "has dated.")

D is just not a sentence. It links a modifier to the main clause with "and," and that doesn't work.


Hi,
in a correct OA in Gmatprep,
Fossils of the arm of a sloth found in Puerto Rico in 1991, have been dated at 34 million years old, made it the earliest known mammal of the Greater Antilles islands.
Here, the dating also, not something the fossils do.

Kudos [?]: 6 [0], given: 175

Re: The Acoma and Hopi are probably the two oldest surviving Pueblo commun   [#permalink] 07 Dec 2017, 22:59

Go to page   Previous    1   2   3   [ 43 posts ] 

Display posts from previous: Sort by

The Acoma and Hopi are probably the two oldest surviving Pueblo commun

  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 | 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®.