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.
Nov 2007:30 AM PST
-08:30 AM PST
Learn what truly sets the UC Riverside MBA apart and how it helps in your professional growth
Nov 2211:00 AM IST
-01:00 PM IST
Do RC/MSR passages scare you? e-GMAT is conducting a masterclass to help you learn – Learn effective reading strategies Tackle difficult RC & MSR with confidence Excel in timed test environment- Nov 23
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. 
Nov 2510:00 AM EST
-11:00 AM EST
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors.
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
67% (01:23) correct
33%
(01:26)
wrong
based on 389
sessions
History
Date
Time
Result
Not Attempted Yet
What is the remainder when positive integer x is divided by 3?
(1) The sum of the digits of x is 5
(2) When x is divided by 9, the remainder is 2
(1) The sum of the digits of x is 5
(2) When x is divided by 9, the remainder is 2
16 Mar 2016, 14:20
Kudos
Bookmarks
Is 'D the answer.
From statement 1, the sum of the digits is 5 i.e 3+2. This is sufficient to tell that remainder will be 2
Statement 2 is pretty clear that the remainder will be 2
Hope I have chosen the right answer.
From statement 1, the sum of the digits is 5 i.e 3+2. This is sufficient to tell that remainder will be 2
Statement 2 is pretty clear that the remainder will be 2
Hope I have chosen the right answer.
16 Mar 2016, 18:33
Kudos
Bookmarks
Forget conventional ways of solving math questions. In DS, Variable approach is the easiest and quickest way to find the answer without actually solving the problem. Remember equal number of variables and independent equations ensures a solution.
What is the remainder when x is divided by 3?
(1) The sum of the digits of x is 5
(2) When x is divided by 9, the remainder is 2
In the original condition, there is 1 variable(x), which should match with the number of equations. So you need 1 equation. For 1) 1 equation for 2) 1 equation, which is likely to make D the answer.
In case of 1), the remainder derived by dividing some number by 3 is as same as the remainder derived by dividing sum of all digits by 3. In 5=3*1+2, the remainder is 2, which is unique and sufficient.
For 2), in x=9p+2=3(3q)+2, the remainder derived by dividing with 3 is 2, which is unique and sufficient.
Therefore, the answer is D.
For cases where we need 1 more equation, such as original conditions with “1 variable”, or “2 variables and 1 equation”, or “3 variables and 2 equations”, we have 1 equation each in both 1) and 2). Therefore, there is 59 % chance that D is the answer, while A or B has 38% chance and C or E has 3% chance. Since D is most likely to be the answer using 1) and 2) separately according to DS definition. Obviously there may be cases where the answer is A, B, C or E.
What is the remainder when x is divided by 3?
(1) The sum of the digits of x is 5
(2) When x is divided by 9, the remainder is 2
In the original condition, there is 1 variable(x), which should match with the number of equations. So you need 1 equation. For 1) 1 equation for 2) 1 equation, which is likely to make D the answer.
In case of 1), the remainder derived by dividing some number by 3 is as same as the remainder derived by dividing sum of all digits by 3. In 5=3*1+2, the remainder is 2, which is unique and sufficient.
For 2), in x=9p+2=3(3q)+2, the remainder derived by dividing with 3 is 2, which is unique and sufficient.
Therefore, the answer is D.
For cases where we need 1 more equation, such as original conditions with “1 variable”, or “2 variables and 1 equation”, or “3 variables and 2 equations”, we have 1 equation each in both 1) and 2). Therefore, there is 59 % chance that D is the answer, while A or B has 38% chance and C or E has 3% chance. Since D is most likely to be the answer using 1) and 2) separately according to DS definition. Obviously there may be cases where the answer is A, B, C or E.
