Events & Promotions
|
|
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Nov 1912:30 PM EST
-01:30 PM EST
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more
Nov 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2001:30 PM EST
-02:30 PM IST
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
Nov 2211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 23
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Nov 2407:00 PM PST
-08:00 PM PST
Full-length FE mock with insightful analytics, weakness diagnosis, and video explanations!
Nov 2510:00 AM EST
-11:00 AM EST
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors.
17 Oct 2020, 07:49
Kudos
Bookmarks
KavyaGanta
Take another look at (C):
Quote:
The passage states that stars form from a parent cloud of gas and that the cloud of gas “has a unique homogeneous chemical composition.” However, it does not state that the cloud’s chemical composition is passed on to the star. It’s possible that the chemical composition of the star is the result of complex chemical reactions or any other process. We simply don’t know that the star’s chemical composition is derived from it’s parent.
(C), however, tells us that the chemical composition of a star is indeed inherited from its parent cloud of gas. If this is the case, we have all the more reason to believe that two stars with the same chemical composition must have originated from the same cloud of gas. This is because we know that no two parent clouds have the same chemical composition (they are “unique”), and thus the stars’ chemical composition must have been inherited from the same parent cloud. For that reason, (C) is correct.
I hope that helps!
24 Apr 2021, 15:20
Kudos
Bookmarks
2. Astronomer: Most stars are born in groups of thousands, each star in a group forming from the same parent cloud of gas. Each cloud has a unique homogeneous chemical composition. Therefore whenever two stars have the same chemical composition as each other, they must have originated from the same cloud of gas.
Conclusion - Therefore whenever two stars have the same chemical composition as each other, they must have originated from the same cloud of gas.
Which of the following, if true, would most strengthen the astronomer's argument?
(A) In some groups of stars, not every star originated from the same parent cloud of gas. this weakens the argument
(B) Clouds of gas of similar or identical chemical composition may be remote from each other.Being remote has no effect on the argument
(C) Whenever a star forms, it inherits the chemical composition of its parent cloud of gas.This strengthens the argument by saying that a star inherits parent cloud of gas
(D) Many stars in vastly different parts of the universe are quite similar in their chemical compositions.does not mention how they got their chemical composition
(E) Astronomers can at least sometimes precisely determine whether a star has the same chemical composition as its parent cloud of gas.who cares what the astronomers do?
Conclusion - Therefore whenever two stars have the same chemical composition as each other, they must have originated from the same cloud of gas.
Which of the following, if true, would most strengthen the astronomer's argument?
(A) In some groups of stars, not every star originated from the same parent cloud of gas. this weakens the argument
(B) Clouds of gas of similar or identical chemical composition may be remote from each other.Being remote has no effect on the argument
(C) Whenever a star forms, it inherits the chemical composition of its parent cloud of gas.This strengthens the argument by saying that a star inherits parent cloud of gas
(D) Many stars in vastly different parts of the universe are quite similar in their chemical compositions.does not mention how they got their chemical composition
(E) Astronomers can at least sometimes precisely determine whether a star has the same chemical composition as its parent cloud of gas.who cares what the astronomers do?
10 Oct 2025, 02:33
Kudos
Bookmarks
Analysis: This prompt seems fair enough. Each gas cloud has a UNIQUE, one of a kind signature, so it follows that any two stars must have come from the same parent cloud, but WAIT! Just because stars may have come from the same parent cloud, does that necessarily mean that the stars would reflect that truth? Not necessarily. That is the HUGE missing gap in the logic of this argument. No question, the right option needs to fill that void that the stars reflect the chemical makeup of the parent gas cloud.
C) Yes! This was the exact missing link that we needed. The one piece of information that this argument lacks is that the stars take on an identifiable chemical signature from the parent cloud. C gives us exactly that. With C, we far more safely say that since the parent cloud has a UNIQUE chemical composition, AND with C, stars take take on that same chemical composition, that if two stars have the same composition as each-other, then they originated from the same cloud.
Answer: C
C) Yes! This was the exact missing link that we needed. The one piece of information that this argument lacks is that the stars take on an identifiable chemical signature from the parent cloud. C gives us exactly that. With C, we far more safely say that since the parent cloud has a UNIQUE chemical composition, AND with C, stars take take on that same chemical composition, that if two stars have the same composition as each-other, then they originated from the same cloud.
Answer: C
