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

It is currently 17 Oct 2018, 20:14

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

Studies of the rotational velocity of a galaxy at various distances fr

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

Hide Tags

Intern
Intern
User avatar
Joined: 09 Apr 2015
Posts: 13
Location: United States
Concentration: Marketing, International Business
GMAT 1: 740 Q49 V42
WE: Sales (Consulting)
Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 15 Oct 2015, 11:26
2
8
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

64% (01:40) correct 36% (01:43) wrong based on 718 sessions

HideShow timer Statistics

Studies of the rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of dark matter.

(A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of

(B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of

(C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of

(D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as

(E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of

_________________

Kudos Please
if you find my question / solution helpful.

Most Helpful Community Reply
Intern
Intern
User avatar
Joined: 04 Sep 2015
Posts: 19
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 15 Oct 2015, 19:08
5
2
GmatNirvanaSeeker wrote:
Studies of the rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of dark matter.


A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of

B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of

C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of

D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as

E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of



Subject of the sentence is "studies" so should contain plural "have" ... This crosses out C and D

In E, "galactic rotation" f*cks up the real meaning of the sentence ... Cross out

In A, pronoun "their" has ambiguous antecedent, "their" can not refer to "distances" .. Cross out... Could have been correct if pronoun "it" was used because then "it" will refer to "a galaxy" (singular)

In B, "their" unambiguously refers to "galaxies"

Kudos please :)
_________________

I am the champ! Mayweather who?!

General Discussion
Manager
Manager
avatar
Joined: 15 Jul 2015
Posts: 50
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 16 Oct 2015, 00:11
2
1
Studies of the rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of dark matter.


A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of

B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of

C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of

D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as

E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of[/quote]
_________________

I am not an expert, so please CORRECT me if I am wrong

Manager
Manager
avatar
B
Joined: 20 May 2014
Posts: 52
Concentration: Finance, Entrepreneurship
GPA: 3.87
GMAT ToolKit User Premium Member
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 25 Nov 2015, 03:43
GmatNirvanaSeeker wrote:
Studies of the rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of dark matter.


A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of

B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of

C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of

D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as

E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of


Does B not change meaning ? It confirms that 90% of the Universe is dark matter. Original sentence says - "Could exist" . This is an MGMAT CAT question.
Senior Manager
Senior Manager
User avatar
Joined: 20 Aug 2015
Posts: 391
Location: India
GMAT 1: 760 Q50 V44
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 25 Nov 2015, 04:05
9SidMn wrote:
Does B not change meaning ? It confirms that 90% of the Universe is dark matter. Original sentence says - "Could exist" . This is an MGMAT CAT question.


Yes it does, but unfortunately this the only option we are left with. If you can eliminate the other 4 answer choices based on grammar, do not think about meaning.

A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of
B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of
Correct
C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of
Studies needs a have, not "has"
D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as
Studies needs a have, not "has"
E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of
Studies have shown "that". Moreover, galactic rotation :shock: where did this come from.
Retired Moderator
User avatar
D
Status: worked for Kaplan's associates, but now on my own, free and flying
Joined: 19 Feb 2007
Posts: 4479
Location: India
WE: Education (Education)
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 25 Nov 2015, 10:19
It is clear that the studies have shown that ninety percent of the universe’s mass exists in the form of dark matter is a fact; why should then be a speculation still that it could exist?. The original carries a wrong conclusion. IMO, B corrects it. Even so, I would rather go with GMATIFY, that if grammar could be handy, then use it first.
_________________

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

Intern
Intern
avatar
Joined: 22 Oct 2015
Posts: 17
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 20 Jan 2016, 13:14
1
What a horrid question. All the answers are wrong. Even B, the OA is wrong because it completely changes the meaning of the sentences from "center of mass" to "center of rotation".
Manager
Manager
avatar
B
Joined: 02 Mar 2017
Posts: 80
GMAT 1: 700 Q51 V34
Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 01 Jul 2017, 00:37
Studies of the rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of dark matter.

(A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of - Should be galaxies ( because scientist proved a theory in general not for a single galaxy) also use of THEIR with singular noun is incorrect. 90% of mass is a singular group and should have singular verb- EXISTS

(B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of - Corrects all the above mentioned issues.

(C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of - Singular HAS does not go with STUDIES. Mass is not made up of DARK MATTER ( MASS EXISTS AS A DARK MATTER)

(D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as - Issues in only HAS verb ( refer earlier explanations). USE OF EXIST IS CORRECT HERE< BECAUSE OF THE USE OF MODAL VERB MIGHT ( modal verb always take plural form of verb)

(E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of- Though I removed this option based on fact that GMAT cannot expect people to is galactic rotation is same as normal rotaion ( mentioned in actual stem), you can remove this on the basis -

1) OVER the UNIVERSE makes no sense
2) EXIST is wrong- it should be exists
VP
VP
User avatar
P
Status: Learning
Joined: 20 Dec 2015
Posts: 1128
Location: India
Concentration: Operations, Marketing
GMAT 1: 670 Q48 V36
GRE 1: Q157 V157
GPA: 3.4
WE: Engineering (Manufacturing)
Reviews Badge
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 01 Jul 2017, 04:36
The subject is studies which is plural so C and D are out.
In a galaxy is singular so we need its but we have their so wrong choice.
We need That in E to make sense .
The answer is B
_________________

Please give kudos if you found my answers useful

Intern
Intern
avatar
B
Joined: 30 Jul 2016
Posts: 6
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 10 Jul 2017, 08:15
Isn't "as much as" redundency?


daagh wrote:
It is clear that the studies have shown that ninety percent of the universe’s mass exists in the form of dark matter is a fact; why should then be a speculation still that it could exist?. The original carries a wrong conclusion. IMO, B corrects it. Even so, I would rather go with GMATIFY, that if grammar could be handy, then use it first.
Manager
Manager
avatar
B
Joined: 19 Aug 2015
Posts: 96
Location: India
GMAT 1: 650 Q49 V30
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 12 Jul 2017, 23:43
Studies of the rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of dark matter.

(A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of

(B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of correct

(C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of

(D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as

(E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of
Manager
Manager
User avatar
G
Joined: 24 Oct 2016
Posts: 191
GMAT 1: 670 Q46 V36
Re: Studies of the rotational velocity of a galaxy at various distances fr  [#permalink]

Show Tags

New post 20 Sep 2018, 16:18
GmatNirvanaSeeker wrote:
Studies of the rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of dark matter.

(A) rotational velocity of a galaxy at various distances from their center of mass have shown that ninety percent of the universe’s mass could exist in the form of

(B) rotational velocity of galaxies at varying distances from their centers of rotation have shown that as much as ninety percent of the mass of the universe exists in the form of

(C) rotational velocity of galaxies at varying distances from their center of mass has shown that up to ninety percent of the mass of the universe is made of

(D) rotational velocity of galaxies at varying distances from their rotational centers has shown that as much as ninety percent of universal mass might exist as

(E) galactic rotation at various distances from the galactic center of rotation have shown up to ninety percent of the mass over the universe exist in the form of


Official Solution (Credit: Manhattan Prep)



The primary purpose of this sentence is to discuss the findings of a group of studies, namely, that much of the mass of the universe exists as dark matter. The main subject and verb of the sentence are therefore “Studies…have shown”. The findings of the study are described by the clause “that as much as…”, containing the subject-verb pairing “ninety percent…exists”.

(A) This sentence incorrectly uses the plural pronoun “their” to refer back to the singular antecedent “galaxy”.

(B) CORRECT. This sentence correctly matches both subject verb pairings.

(C) This sentence incorrectly pairs the singular verb phrase “has shown” with the plural noun “studies”.

(D) This sentence incorrectly pairs the singular verb phrase “has shown” with the plural noun “studies”.

(E) This sentence incorrectly pairs the singular subject “ninety percent” with the plural verb “exist”. Further, this sentence incorrectly states, “studies have shown up to ninety percent” (omitting the word “that” from the answer) implying that the studies themselves revealed ninety percent instead of revealing that ninety percent exists. In order to correctly pair the findings of the studies to the entire clause, the word “that” must be inserted.
_________________

Most Comprehensive Article on How to Score a 700+ on the GMAT (NEW)
Verb Tenses Simplified

If you found my post useful, KUDOS are much appreciated. Giving Kudos is a great way to thank and motivate contributors, without costing you anything.

GMAT Club Bot
Re: Studies of the rotational velocity of a galaxy at various distances fr &nbs [#permalink] 20 Sep 2018, 16:18
Display posts from previous: Sort by

Studies of the rotational velocity of a galaxy at various distances fr

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


Copyright

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®.