by: gmataccount123
28 mins
|
|
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.
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
70% (01:00) correct
30%
(01:18)
wrong
based on 40
sessions
History
Date
Time
Result
Not Attempted Yet
Is y > 3 ?
(1) y^2 > 4
(2) y^2 > 16
_________________
(1) y^2 > 4
(2) y^2 > 16
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
_________________
New to the GMAT Club?
- • Questions: Question Bank | Bunuel's Signature Collection
• Tests: GMAT Club Tests | Forum Quiz
• Guides: Quantitative | Critical Reasoning | Reading Comprehension | Ultimate Quant Guide | All You Need for Quant
• Rules: Quantitative | Verbal
Posts: 4,849
From statement I alone, \(y^2\) > 4.
Therefore, \(y^2 – 4\) > 0 OR (y-2) (y+2) > 0.
The solutions for the above quadratic inequality are y>2 OR y< -2. One of the ranges can give a YES to the question and the other gives a NO.
Statement I alone is insufficient. Answer options A and D can be eliminated. Possible answer options are B, C or E.
From statement II alone, \(y^2\) > 16.
Therefore, \(y^2\) – 16 > 0.
The solutions for the above quadratic inequality are y>4 OR y< -4. One of the ranges can give a YES to the question and the other gives a NO.
Statement II alone is insufficient. Answer option B can be eliminated. Possible answer options are C or E.
Combining statements I and II, we have the following:
From statement I alone, y>2 OR y< -2
From statement II alone, y>4 OR y< -4.
The common range for both is y>4 OR y< -4, which is still insufficient to answer the question with a YES or NO.
The combination of statements is insufficient to answer the question. Answer option C can be eliminated.
The correct answer option is E.
Hope that helps!
Aravind B T
Therefore, \(y^2 – 4\) > 0 OR (y-2) (y+2) > 0.
The solutions for the above quadratic inequality are y>2 OR y< -2. One of the ranges can give a YES to the question and the other gives a NO.
Statement I alone is insufficient. Answer options A and D can be eliminated. Possible answer options are B, C or E.
From statement II alone, \(y^2\) > 16.
Therefore, \(y^2\) – 16 > 0.
The solutions for the above quadratic inequality are y>4 OR y< -4. One of the ranges can give a YES to the question and the other gives a NO.
Statement II alone is insufficient. Answer option B can be eliminated. Possible answer options are C or E.
Combining statements I and II, we have the following:
From statement I alone, y>2 OR y< -2
From statement II alone, y>4 OR y< -4.
The common range for both is y>4 OR y< -4, which is still insufficient to answer the question with a YES or NO.
The combination of statements is insufficient to answer the question. Answer option C can be eliminated.
The correct answer option is E.
Hope that helps!
Aravind B T
TestPrepUnlimited
Expert
Tutor
Joined: 16 Sep 2014
Last visit: 30 Jun 2022
Posts: 1,221
Location: United States
GMAT 1: 780 Q51 V45
GRE 1: Q170 V167
Expert reply
Bunuel
Statement 1:
This gives \(y > 2\) or \(y < -2\), such values include y = 5 and y = -5. Then it is possible that y > 3 but not always. Insufficient.
Statement 2:
This gives \(y > 4\) or \(y < -4\), such values include y = 5 and y = -5. Then it is possible that y > 3 but not always. Insufficient.
Combined:
Note both values y = 5 and y = -5 are included in both, which means combined we can still use them. Insufficient.
Ans: E
_________________
Source: We are an NYC based, in-person and online GMAT tutoring and prep company. We are the only GMAT provider in the world to guarantee specific GMAT scores with our flat-fee tutoring packages, or to publish student score increase rates. Our typical new-to-GMAT student score increase rate is 3-9 points per tutoring hour, the fastest in the world. !
Bunuel
1)\(y^2 > 4\)
\(|y| > 2\)
So, y > 2 or y < -2 - Insufficient!
Case1: y = 5 True!
Case2: y = -3 Untrue!
2)\(|y| > 4\)
So, y > 4 or y < -4
Case1: y = 5 True!
Case2: y = -5 Untrue!
Combining (1) & (2):
Still, insufficient!
IMO, (E)!
Moderator:
Announcements
How to Tell If Your GMAT Prep Resources Are Actually Helping You
Subscribe to GMAT Club for New Podcast Episodes, Debriefs, & Insightful Sessions on GMAT Preparation
Subscribe to GMAT Club for New Podcast Episodes, Debriefs, & Insightful Sessions on GMAT Preparation
Tuck at Dartmouth
AI at Dartmouth Tuck: How the School Is Preparing Leaders for the Age of Artificial Intelligence
Inside the courses, research, and hands-on learning defining wise, decisive leadership in an AI-driven world.
Read More
Inside the courses, research, and hands-on learning defining wise, decisive leadership in an AI-driven world.
Read More
Top 5 GMAT Debrief Videos
Success stories and strategies from high-scoring candidates.