|
|
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.
25 Sep 2018, 05:30
Kudos
Bookmarks
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
85% (00:51) correct
15%
(01:11)
wrong
based on 85
sessions
History
Date
Time
Result
Not Attempted Yet
If n is an integer, is n/11 an integer?
(1) 7n/11 is an integer.
(2) 3n/11 is an integer
(1) 7n/11 is an integer.
(2) 3n/11 is an integer
25 Sep 2018, 06:07
Kudos
Bookmarks
Bunuel
n is a integer.
question : n/11 = integer ?
Statement 1: 7n / 11= intege. 7 is a prime and not divisible by 11. in order to make 7n/11 integer, n has to be the multiple of 11. Sufficient.
Statement 2 : 3n / 11 = integer. same as 1. Sufficient.
The best answer is D.
25 Sep 2018, 22:57
Kudos
Bookmarks
Bunuel
Given, n = Integer
Question: Is n/11 an Integer?
i.e. we need to find whether n is a multiple of 11 or not
Statement 1: 7n/11 is an integer
There is no common multiple between 7 and 11 except 1
i.e. n MUST be a multiple of 11 for this to be true as n is an integer hence
SUFFICIENT
Statement 2: 3n/11 is an integer
There is no common multiple between 3 and 11 except 1
i.e. n MUST be a multiple of 11 for this to be true as n is an integer hence
SUFFICIENT
Answer: Option D
