BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 559 reviewsTarget Test Prep

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

please help

Expert replies
Post new topic Locked
Previous Topic Next Topic
Junior | Next Rank: 30 Posts
Posts: 12
Joined: Thu Jun 24, 2010 11:45 am
by ace001 » Thu Jun 24, 2010 1:49 pm
The time it takes for a star to change its brightness is directly related to the luminosity of it.
A. no change
B. the luminosity of its brightness
C. the luminosity of a star
D. luminosity of it
E. its luminosity

I was confused about this because I didn't know what they were trying to describe by "luminosity"--the star or the brightness.
The correct answer is E. Can you please explain why?
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Source: — Sentence Correction |
Master | Next Rank: 500 Posts
Posts: 151
Joined: Thu Apr 22, 2010 4:07 pm
Thanked: 14 times

by Haaress » Thu Jun 24, 2010 2:45 pm
This question is on parallelism and consicion.

Here is the extended version of the sentence.

The time it takes for a star to change its brightness is directly related to the time it takes for a star to change its luminosity.

..and here is its summarized version.

The time it takes for a star to change its brightness is directly related to its luminosity.

Hope that helps.
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Legendary Member
Posts: 1309
Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members
Thanked: 33 times

by pradeepkaushal9518 » Thu Jun 24, 2010 11:49 pm
yes u need a very concise sentence

A is very long
B.wordy
C.worrdy and not clear
D.same as above
E correct and concise
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Junior | Next Rank: 30 Posts
Posts: 11
Joined: Sun Jun 13, 2010 11:30 pm

by questionbox » Fri Jun 25, 2010 2:36 am
Haaress wrote:This question is on parallelism and consicion.

Here is the extended version of the sentence.

The time it takes for a star to change its brightness is directly related to the time it takes for a star to change its luminosity.

..and here is its summarized version.

The time it takes for a star to change its brightness is directly related to its luminosity.

Hope that helps.
I agree
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 226
Joined: Wed Jun 02, 2010 1:46 am
Thanked: 2 times

by martin.jonson007 » Fri Jun 25, 2010 3:55 am
Haaress wrote:This question is on parallelism and consicion.

Here is the extended version of the sentence.

The time it takes for a star to change its brightness is directly related to the time it takes for a star to change its luminosity.

..and here is its summarized version.

The time it takes for a star to change its brightness is directly related to its luminosity.

Hope that helps.
In this is the case case, then C will be BEST...!

In E , it is not clear that ITS refer to wat .... STAR or BRIGHTNESS... (presence of its creates doubt for reader)

C option makes it clear that luminosity is of STAR not of BRIGHTNESS....!

========================

gud ques....

counter ques are there...
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Master | Next Rank: 500 Posts
Posts: 151
Joined: Thu Apr 22, 2010 4:07 pm
Thanked: 14 times

by Haaress » Fri Jun 25, 2010 8:03 am
Martin,

Here is the original statment.

The time it takes for a star to change its brightness is directly related to the luminosity of it.

IMO C is incorrect because it does not obey parallelism. Additionally, the "its" before brightness does not / cannot refer to brightness but rather to the star, otherwise the author would have underlined its brightness. I am sure you'll agree with me that it is errorneous to have a possessive pronoun that modofies a noun next to each other, unless separated by a comma .

Please correct me if my agrument is flawed. Thanks!
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Senior | Next Rank: 100 Posts
Posts: 96
Joined: Wed May 20, 2009 8:46 pm
Thanked: 1 times

by jonathan123456 » Fri Jun 25, 2010 5:45 pm
Whats the OA. I feel it should be C
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
User avatar
Master | Next Rank: 500 Posts
Posts: 434
Joined: Mon Jun 11, 2007 9:48 pm
Location: Bangalore
Thanked: 6 times
GMAT Score:600

by viju9162 » Fri Jun 25, 2010 6:36 pm
its cannot refer to brightness. The subject is star. Considering the rules of parallelism,

The time it takes for a star to change its brightness is directly related to its luminosity.

This will not arise any confusion in the sentence
"Native of" is used for a individual while "Native to" is used for a large group
Top
Join the discussion
Log in to postLogin with Googleuse password
QUOTE IN REPLY
Post new topic Locked
• Page 1 of 1