|
|
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 Nov 2019, 02:21
Kudos
Bookmarks
E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
55% (01:46) correct
45%
(01:40)
wrong
based on 155
sessions
History
Date
Time
Result
Not Attempted Yet
Is the positive integer A divisible by 3?
(1) A + 1 is a prime number
(2) A - 1 is a prime number
Are You Up For the Challenge: 700 Level Questions
(1) A + 1 is a prime number
(2) A - 1 is a prime number
Are You Up For the Challenge: 700 Level Questions
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
ShankSouljaBoi
Joined: 21 Jun 2017
Last visit: 12 Aug 2026
Posts: 593
Own Kudos:
Given Kudos: 4,089
Location: India
Concentration: Finance, Economics
Schools: Rotman '23 (D) IIMA PGPX'22 (D) Desautels '23 (D) Schulich Sept '23 (D) WBS (D) IIML IPMX'25 (A)
GMAT 1: 660 Q49 V31
GMAT 2: 620 Q47 V30
GMAT 3: 650 Q48 V31
GPA: 3.1
WE:Corporate Finance (Non-Profit and Government)
Products:
Schools: Rotman '23 (D) IIMA PGPX'22 (D) Desautels '23 (D) Schulich Sept '23 (D) WBS (D) IIML IPMX'25 (A)
GMAT 3: 650 Q48 V31
Posts: 593
Kudos:
620
25 Nov 2019, 03:32
Kudos
Bookmarks
E
1---- A could be 4 So no its not divisible by 6, could be 6 so Yes A is divisible by 3.
2---- Same as above examples work
C---- Same as above examples work
1---- A could be 4 So no its not divisible by 6, could be 6 so Yes A is divisible by 3.
2---- Same as above examples work
C---- Same as above examples work
25 Nov 2019, 05:21
Kudos
Bookmarks
#1
A + 1 is a prime number
A= 2,4, we get NO to A divisible by 3
A= 12 , we get Yes to A is divisible by 3
insufficient
#2
A-1 is a prime no
A= 3 , we get yes
A= 4, we get no
from 1 & 2
possible value of A = 4,12
insufficient
IMO E
A + 1 is a prime number
A= 2,4, we get NO to A divisible by 3
A= 12 , we get Yes to A is divisible by 3
insufficient
#2
A-1 is a prime no
A= 3 , we get yes
A= 4, we get no
from 1 & 2
possible value of A = 4,12
insufficient
IMO E
Bunuel
