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.
Sep 1008:00 PM PDT
-09:00 PM PDT
Free- full-length test + 15 concept videos + 150+ short videos + study plan!
Sep 0812:30 AM EDT
-01:30 AM EDT
Looking for your GMAT motivation to break through the score plateau? Pragati improved her score by massive 160 points with strategic guidance and hard-work! Find out how personalized mentorship and a strong mindset can turn GMAT struggles into success.
Sep 1001:00 AM EDT
-02:00 AM EDT
Learn how Keshav, a Chartered Accountant, scored an impressive 705 on GMAT in just 30 days with GMATWhiz's expert guidance. In this video, he shares preparation tips and strategies that worked for him, including the mock, time management, and more.
Sep 1507:00 PM EDT
-09:00 PM EST
Elite scores are possible when you enroll in a powerful GMAT course, taught live online + 6 months access to TTP OnDemand video courses included! Class starts Tues/Thurs Sept. 15, 2026 - Nov. 15, 2027, 7:00pm-9:00pm EST
Sep 2107:00 PM EDT
-10:00 PM EDT
Boost your GMAT score in less than one month in a live online class + 6 months access to TTP OnDemand video courses included! Class starts Mon, Tues, Wed, Thur, Fri Sept. 21, 2026 - Oct. 9, 2027, 7:00pm-10:00pm EST
13 Mar 2019, 23:50
Kudos
Bookmarks
D
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:
85% (01:34) correct
15%
(01:47)
wrong
based on 27
sessions
History
Date
Time
Result
Not Attempted Yet
For any integers x and y, sum (x, y) and diff (x, y) denote the sum and the difference of x and y, respectively. For example, sum (1, 2) = 3 and diff (1, 2) = -1. For the integer p, what is the value of sum (10, p)?
(1) diff (diff (10, p), sum (10, p)) = sum (diff (10, p), sum(10,p))
(2) sum(10, p) = diff (-10, p)
A)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.
B)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.
C)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D)EACH statement ALONE is sufficient to answer the question asked.
E)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
(1) diff (diff (10, p), sum (10, p)) = sum (diff (10, p), sum(10,p))
(2) sum(10, p) = diff (-10, p)
A)Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.
B)Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.
C)BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D)EACH statement ALONE is sufficient to answer the question asked.
E)Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
14 Mar 2019, 09:59
Kudos
Bookmarks
The question is just asking "what is 10+p", so if we can find p, we're done. The question then is just about decoding these sum(x,y) and diff(x,y) things correctly - it's important to use brackets when looking at Statement 1.
In Statement 1 we have:
diff (diff (10, p), sum (10, p)) = sum (diff (10, p), sum(10,p))
(10-p) - (10+p) = (10-p)+(10+p)
-2p = 20
p = -10
which is sufficient.
In Statement 2 we have
sum(10, p) = diff (-10, p)
10 + p = -10 - p
20 = -2p
10 = -p
which is also sufficient.
In Statement 1 we have:
diff (diff (10, p), sum (10, p)) = sum (diff (10, p), sum(10,p))
(10-p) - (10+p) = (10-p)+(10+p)
-2p = 20
p = -10
which is sufficient.
In Statement 2 we have
sum(10, p) = diff (-10, p)
10 + p = -10 - p
20 = -2p
10 = -p
which is also sufficient.
19 Mar 2019, 12:21
Kudos
Bookmarks
#1diff (diff (10, p), sum (10, p)) = sum (diff (10, p), sum(10,p))
10-p-10-p = 10-p+10+p
p= -10
so sum (10, p) = 0
sufficient
#2
sum(10, p) = diff (-10, p)
10+p=-10-p
p=-10
again sufficeint
IMO D
10-p-10-p = 10-p+10+p
p= -10
so sum (10, p) = 0
sufficient
#2
sum(10, p) = diff (-10, p)
10+p=-10-p
p=-10
again sufficeint
IMO D
mangamma
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Data Sufficiency (DS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
