|
|
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.
17 Jun 2021, 00:26
Kudos
Bookmarks
A
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:
73% (00:55) correct
27%
(00:50)
wrong
based on 60
sessions
History
Date
Time
Result
Not Attempted Yet
If \(n\) is an integer, is \( n\) divisible by \( 6\)?
1) \(\frac{5n}{6}\) is an integer.
2) \(\frac{21n}{6}\) is an integer
1) \(\frac{5n}{6}\) is an integer.
2) \(\frac{21n}{6}\) is an integer
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
17 Jun 2021, 09:05
Kudos
Bookmarks
If \(n\) is an integer, is \( n\) divisible by \( 6\)?
Is n=6y, where y is an integer?
1) \(\frac{5n}{6}\) is an integer.
As 5 and 6 are co-prime, the fraction will be an integer only when n contains 6 as a factor.
Sufficient
2) \(\frac{21n}{6}\) is an integer
As 21 and 6 are not co-prime, there is a possibility that n does not contain 3 We can just be sure of 6 to be an even number.
n=2 or 4 or 14.....6 is not a factor
n=6,12, or 24.....6 is a factor.
Insufficient
A
Is n=6y, where y is an integer?
1) \(\frac{5n}{6}\) is an integer.
As 5 and 6 are co-prime, the fraction will be an integer only when n contains 6 as a factor.
Sufficient
2) \(\frac{21n}{6}\) is an integer
As 21 and 6 are not co-prime, there is a possibility that n does not contain 3 We can just be sure of 6 to be an even number.
n=2 or 4 or 14.....6 is not a factor
n=6,12, or 24.....6 is a factor.
Insufficient
A
Moderator:
