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.
May 1212:00 PM EDT
-11:59 PM EDT
Make the most of your break with the most realistic GMAT™ prep. Take up to $700 off select products.
May 1308:30 AM PDT
-09:30 AM PDT
In Episode 4 of our GMAT Ninja CR series, we tackle the most intimidating CR question type: Boldface & "Legalese" questions. If you've ever stared at an answer choice that reads, "The first is a consideration introduced to counter a position that...- May 12
07:30 AM PDT
-08:30 AM PDT
Join the Live and learn more about Picking the Right Schools - May 14
08:30 AM PDT
-09:30 AM PDT
Most GMAT test-takers are intimidated by the hardest GMAT Verbal questions. In this session, Target Test Prep GMAT instructor Erika Tyler-John, a 100th percentile GMAT scorer, will show you how top scorers break down challenging Verbal questions.. - Jun 10
06:00 AM PDT
-06:15 PM PDT
Register for the GMAT Club Virtual MBA Spotlight Fair – the world’s premier event for serious MBA candidates. This is your chance to hear directly from Admissions Directors at nearly every Top 30 MBA program..
16 Sep 2014, 00:18
Kudos
Bookmarks
If \(x\) and \(n\) are positive integers, is \(n\) a factor of \(x(x+1)(x+2)\)?
(1) \(n = 3\)
(2) \(x = 12\)
(1) \(n = 3\)
(2) \(x = 12\)
02 Jan 2018, 23:18
Kudos
Bookmarks
Official Solution:
If \(x\) and \(n\) are positive integers, is \(n\) a factor of \(x(x+1)(x+2)\)?
(1) \(n = 3\).
The question can be rephrased as: is \(x(x+1)(x+2)\) divisible by 3? Given that \(x(x+1)(x+2)\) represents the product of three consecutive integers, one of them is inevitably divisible by 3. Therefore, \(x(x+1)(x+2)\) will be divisible by 3 for any integer value of \(x\). Sufficient.
(2) \(x = 12\).
The question becomes: is \(12*13*14\) divisible by \(n\)? Without knowing the value of \(n\), we cannot definitively answer the question. For instance, if \(n = 1\), the answer would be YES, but if \(n = 17\), the answer would be NO. Not sufficient.
Answer: A
If \(x\) and \(n\) are positive integers, is \(n\) a factor of \(x(x+1)(x+2)\)?
(1) \(n = 3\).
The question can be rephrased as: is \(x(x+1)(x+2)\) divisible by 3? Given that \(x(x+1)(x+2)\) represents the product of three consecutive integers, one of them is inevitably divisible by 3. Therefore, \(x(x+1)(x+2)\) will be divisible by 3 for any integer value of \(x\). Sufficient.
(2) \(x = 12\).
The question becomes: is \(12*13*14\) divisible by \(n\)? Without knowing the value of \(n\), we cannot definitively answer the question. For instance, if \(n = 1\), the answer would be YES, but if \(n = 17\), the answer would be NO. Not sufficient.
Answer: A
General Discussion
03 Jan 2018, 10:59
Kudos
Bookmarks
I understand and thanks for the explanation.
