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Data Sufficiency

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Average and median
by heshamelaziry »
Matt and four of his friends sold 60 tickets to a bowl game. If Matt...
4
Last post by Stuart@KaplanGMAT
Wed Dec 02, 2009 11:46 pm
Quadratic Equations
by Pedros »
what is X? 1) 6x= √(3x) 2) x>o OA C why A is not suffiecint?...
8
Last post by mehravikas
Wed Dec 02, 2009 1:10 pm
DS on inequalities
by r_walid »
IF material A cost 3$/kg and B cost 5$/kg. If 10 kg of material K...
9
Last post by ssuarezo
Wed Dec 02, 2009 8:35 am
GMAT Prep Number Line DS
by vivekjaiswal »
Guys, Not sure if this has been discussed in some other thread (if...
5
Last post by heshamelaziry
Tue Dec 01, 2009 10:37 pm
x, y
by beatthegmat2910 »
If y is an integer and y =|x| + x, is y = 0? (1) x < 0 (2) y < 1
4
Last post by mehravikas
Tue Dec 01, 2009 8:05 pm
Average
by beatthegmat2910 »
Division R of Company Q has 1,000 employees. What is the average...
1
Last post by mehravikas
Tue Dec 01, 2009 7:57 pm
DS problem involving overlapping sets
by Osirus@VeritasPrep »
In a certain city, the ratio of the number of people who purchase...
2
Last post by Osirus@VeritasPrep
Tue Dec 01, 2009 1:07 pm
p/n is odd?
by beatthegmat2910 »
p is an integer; n is an integer; and p/n is an integer. Is p/n odd?...
1
Last post by mp2437
Tue Dec 01, 2009 12:53 pm
Music club and drama club
by vivekjaiswal »
If the drama club and the music club are combined, what percent of...
2
Last post by vivekjaiswal
Tue Dec 01, 2009 7:07 am
OG 12 DS 123 Help
by Niner710 »
Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15...
1
Last post by wanttobeat
Tue Dec 01, 2009 1:27 am
x>y?
by mariah »
x>y? 1) x^2>y^3 2) x^3>y^4
7
Last post by wanttobeat
Tue Dec 01, 2009 12:32 am
Another Integer
by heshamelaziry »
Both X and Y are integers. In all cases where x is even, y is also...
3
Last post by papgust
Mon Nov 30, 2009 9:08 pm
probability
by GMATCRUSHER »
Each of 25 balls in a certain boxis either red blue or white and has...
3
Last post by sunnyjohn
Mon Nov 30, 2009 6:55 pm
X values
by Abdulla »
OA is A
4
Last post by mehravikas
Mon Nov 30, 2009 4:50 pm
Reminder Question from Manhattan CAT
by Niner710 »
Hi, I was wondering if someone could help explain this question? If a...
6
Last post by Niner710
Mon Nov 30, 2009 8:08 am
Age
by heshamelaziry »
Today Bill is 13 times as old as Pete. In 9 yeasr Bill will be 4...
2
Last post by Stuart@KaplanGMAT
Mon Nov 30, 2009 12:10 am
Integer
by heshamelaziry »
Is q an integer ? A- q + 6 is an integer B- 2q is even OA is D. Why B...
2
Last post by Stuart@KaplanGMAT
Mon Nov 30, 2009 12:06 am
Area Sector
by heshamelaziry »
The area of a certain circle is 8 times the area of a sector of the...
5
Last post by Stuart@KaplanGMAT
Sun Nov 29, 2009 2:56 pm
x>y?
by mariah »
Is x > y? 1) x^2 > y^2 2) y - y^2 > 0 oa E i agree with oa...
2
Last post by Brent@GMATPrepNow
Sun Nov 29, 2009 9:55 am
Integer
by deepoe »
If p is an integer, is ( p/ 18 ) an integer? 1. ( 5p / 18 ) is an...
1
Last post by thephoenix
Sun Nov 29, 2009 7:27 am
GMAT Word Problem and Inequality
by abhi75 »
A school administrator will assign each student in a group of n...
5
Last post by berserk
Sat Nov 28, 2009 8:17 pm
A question i just dont understand from the OG
by hongwang9703 »
for all z, denotes the least integer greater than or equal to z. is =...
1
Last post by papgust
Sat Nov 28, 2009 8:13 pm
integers
by GMATCRUSHER »
S is a finite set of numbers. does S contain more negative numbers...
1
Last post by papgust
Fri Nov 27, 2009 7:24 pm
time work
by thephoenix »
A,B and C are deployed for a task, who is most efficient. 1) A and B...
1
Last post by Stuart@KaplanGMAT
Fri Nov 27, 2009 2:01 pm
FDP
by Abdulla »
OA is C
1
Last post by thephoenix
Fri Nov 27, 2009 7:20 am
GCF and LCM
by Abdulla »
OA is A
1
Last post by Testluv
Thu Nov 26, 2009 9:33 pm
If x and y are nonzero integers, is ...
by Abdulla »
OA is A
6
Last post by Abdulla
Thu Nov 26, 2009 4:05 pm
Second Gretest
by Abdulla »
Store S sold a total of 90 copies of a certain book during the seven...
3
Last post by sadullaevd
Thu Nov 26, 2009 2:43 am
Is x negative?
by linfongyu »
Is x negative? (1) 2x > x^2 (2) x < 1 OA is: A
4
Last post by Abdulla
Wed Nov 25, 2009 9:41 pm
Need help with sets please
by ashish1354 »
i need to know how to mathematically interpret statement 1) and also...
3
Last post by Abdulla
Wed Nov 25, 2009 9:23 pm
Data Sufficiency Multiple Variables
by kkpatel1 »
What is the value of C+B? 1) A+B=C+D=E+F 2) (E+F)=(D-B) I performed...
5
Last post by Abdulla
Wed Nov 25, 2009 9:02 pm
Absolute Value
by Abdulla »
Is |a| > |b|? (1) b < -a (2) a < 0 OA is E
4
Last post by Abdulla
Wed Nov 25, 2009 8:38 pm
GCF / LCM DS Problem
by mlaboda »
Thank you for helping me understand this problem! If x and y are...
6
Last post by palvarez
Wed Nov 25, 2009 2:40 pm
Complex DS problem
by RoadtoIVY »
If Carlos, Eric, Jeff, and Nigel together have a total of 100...
4
Last post by Stuart@KaplanGMAT
Wed Nov 25, 2009 2:12 pm
Unit Digit
by heshamelaziry »
Q. What is the units digit of a^36? a) a^2 has 9 as the units digit...
4
Last post by Stuart@KaplanGMAT
Wed Nov 25, 2009 1:59 pm
Coats .. I think it's tricky
by Abdulla »
A store Purchased 20 coats that each an equal amount and then sold...
2
Last post by Abdulla
Tue Nov 24, 2009 10:51 pm
very challenging problem
by adam15 »
the members of the newest recruting class of a certain military...
3
Last post by nikilnikil
Tue Nov 24, 2009 8:31 pm
Is x + y > 0 ?
by Abdulla »
Is x + y > 0? (1) x-y > 0 (2) x2-y2 > 0 OA is C
3
Last post by mehravikas
Tue Nov 24, 2009 6:41 pm
Explaination of an answer
by Heuters »
Here's the DS problem: What is the value of (2^x + 2^x)/2^y? (1)...
3
Last post by mp2437
Tue Nov 24, 2009 12:46 pm
Does (x+y)^2 + (x-y)^2 = 170?
by chipbmk »
Does (x+y)^2 + (x-y)^2 = 170? 1) x^2 + y^2= 85 2) x=y+1 OA: A Please...
10
Last post by chipbmk
Mon Nov 23, 2009 10:40 pm
Explain please
by gmater29 »
Is x > k? (1) 2^x "¢ 2^k = 4 (2) 9^x "¢ 3^k = 81
8
Last post by adamsmith2009
Mon Nov 23, 2009 3:14 pm
Two water tanks, X and Y ---
by RoadtoIVY »
Two water tanks, X and Y, were drained simultaneously. If X contained...
2
Last post by RoadtoIVY
Mon Nov 23, 2009 9:00 am
Triangle DS Problem
by mlaboda »
Thank you for helping me understand this problem! In the attached...
1
Last post by ershovici
Mon Nov 23, 2009 1:33 am
Strong concept tested: Please help me out
by gmat620 »
Is M < 0 ? 1. - M = | - M | 2. M^2 = 9 Hello Friends, I think mod...
3
Last post by gmat620
Sun Nov 22, 2009 3:30 pm
OG 12 129 Help
by EMAN »
What is the median number of employees assigned per project for the...
1
Last post by adam15
Sun Nov 22, 2009 3:00 pm
Explain please
by gmater29 »
Is x > k? (1) 2^x "¢ 2^k = 4 (2) 9^x "¢ 3^k = 81
1
Last post by papgust
Sun Nov 22, 2009 3:54 am
Variables on the Exponents
by Abdulla »
Is 3^p > 2^q ? (1) q = 2p (2) q > 0 OA is C
1
Last post by brick2009
Sat Nov 21, 2009 11:04 pm
Kaplan Premier 2010 Edition - Is this a fair question?
by shaysmith »
On page 467, problem number 20 in data sufficiency, the book answer...
3
Last post by Stuart@KaplanGMAT
Sat Nov 21, 2009 10:06 pm
triangle
by adam15 »
For the triangle shown above, where A, B and C are all points on a...
7
Last post by adam15
Sat Nov 21, 2009 9:07 pm
Is n an integer?
by RoadtoIVY »
Is n an integer? 1. 2n is an integer 2. 3n is an integer The source I...
1
Last post by brick2009
Sat Nov 21, 2009 8:51 pm