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Data Sufficiency

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POSTS
Last post
N
by crackgmat007 »
In stmt 2, is it wrong to assume that there are multiple even numbers...
6
EXPERT REPLIES
Last post by lunarpower
Mon Nov 16, 2009 2:58 am
Help Me out with this Standard Deviation prob. from GMATPREP
by DREAM GMAT »
Some water was removed from each of 6 tanks. If standard deviation of...
7
EXPERT REPLIES
Last post by lunarpower
Mon Nov 16, 2009 2:15 am
How did they know 3^(4n-2) / 10 always ends in a 9?
by cbenk121 »
1
Last post by palvarez
Mon Nov 16, 2009 1:24 am
Number Prop
by heshamelaziry »
If the integer x is greater than 1, does x = 2? A) x is evenly...
7
EXPERT REPLIES
Last post by palvarez
Mon Nov 16, 2009 1:01 am
Who the heck wrote these questions??
by Kaunteya »
Is the sum of the integers x and y a prime number? (1) x is an even...
3
Last post by Abdulla
Sun Nov 15, 2009 9:00 pm
new style of question
by hpgmat »
if $ represents either addition, subtraction or multiplication. is...
2
Last post by Abdulla
Sun Nov 15, 2009 8:31 pm
OG11 DS# 146
by anaitalt »
(pg 290) Is n an integer? (1) n^2 is an integer (2) n^(1/2) is an...
1
EXPERT REPLIES
Last post by Ian Stewart
Sun Nov 15, 2009 3:10 pm
Quadratic match
by maihuna »
If b, c, and d are constants and x^2 + bx + c = (x + d)^2 for all...
3
EXPERT REPLIES
Last post by notts5
Sun Nov 15, 2009 1:08 am
Algebra
by heshamelaziry »
Is a + b > 0? 1. 7a - b > 0 2. b - 6a > 0 How C is the...
2
Last post by usfgrad
Sat Nov 14, 2009 7:36 pm
WORK
by heshamelaziry »
Two carpenters, Antoine and Ben, built identical picture frames at...
1
Last post by Testluv
Sat Nov 14, 2009 7:34 pm
inequal...ds roots
by maihuna »
If x and y are positive, is x^3 > y? (1) \/x > y (2) x > y
6
Last post by gmat620
Sat Nov 14, 2009 11:02 am
value M
by mariah »
If /M+4/=2, what is the value of M? /module/ (1) M<0 (2)...
2
Last post by mariah
Sat Nov 14, 2009 12:40 am
Cubed Root Data Sufficiency Question
by bschoolerrj »
Is x an integer? 1) x^3 is an integer 2) cubed rt (x) is an integer I...
1
Last post by palvarez
Fri Nov 13, 2009 9:55 pm
Is this geometry ques. bad or my thinking process is wrong?
by prince11 »
If CD = 6, what is the length of BC? 1) BD = 6 radical 3 2)x = 60...
2
Last post by Lance123
Fri Nov 13, 2009 9:09 pm
Age?
by brick2009 »
Q9:How many years did Dr. Jones live? (1) If Dr. Jones had become a...
6
Last post by grockit_jake
Fri Nov 13, 2009 2:30 pm
Factors
by brick2009 »
Q11: How many different factors does the integer n have? (1) n =...
4
EXPERT REPLIES
Last post by Ian Stewart
Fri Nov 13, 2009 1:19 pm
DS GMAT PREP
by kartik1979 »
hi , can someone help how to arrive at a solution in the below sum
2
Last post by heshamelaziry
Fri Nov 13, 2009 12:55 pm
COST
by heshamelaziry »
Last Tuesday a trucker paid $155.76, including 10 percent state and...
4
Last post by heshamelaziry
Fri Nov 13, 2009 11:44 am
Algebra Question
by Lance123 »
Hey guys, I'm new here, however I've been browsing for some time....
4
Last post by Lance123
Fri Nov 13, 2009 10:39 am
DS-Gprep
by xcusemeplz2009 »
pls show your solution/reasoning to support your ans...
3
Last post by heshamelaziry
Fri Nov 13, 2009 10:32 am
inequatiions
by ben2pop »
hey guys can someone could help me to figure out this question please...
1
Last post by palvarez
Fri Nov 13, 2009 2:06 am
X - Y > X + Y?
by cbenk121 »
If x != -y, is (x-y) / (x+y) > 1? (1) X > 0 (2) Y < 0...
13
Last post by Testluv
Thu Nov 12, 2009 7:15 pm
inequal...ds
by maihuna »
If xyz ≠ 0, is x (y + z) >= 0? (1) ¦y + z¦ = ¦y¦...
3
Last post by maihuna
Thu Nov 12, 2009 5:39 am
Averages
by Abdulla »
If the average size of 3 accounts is $1 million, is the smallest...
12
Last post by heshamelaziry
Wed Nov 11, 2009 10:25 pm
Inequality
by heshamelaziry »
If m ≠ -n, is (m - n)/(m + n) > 1? (1) n < -2 (2) m >...
1
Last post by palvarez
Wed Nov 11, 2009 10:00 pm
Statistics
by heshamelaziry »
Store S sold a total of 90 copies of a certain book during the seven...
4
Last post by palvarez
Wed Nov 11, 2009 5:57 pm
Production Question
by chipbmk »
If production on line A increased 5% from 2006 to 2007, and if...
1
Last post by GMATBootcamp
Wed Nov 11, 2009 1:29 pm
reserve tank
by okigbo »
Reserve tank 1 is capable of holding z gallons of water. Water is...
4
Last post by okigbo
Wed Nov 11, 2009 10:46 am
terminator pq
by tarun.kirla »
If a, b, c, d and e are integers and p = 2a3b and q = 2c3d5e, is p q...
9
Last post by brick2009
Wed Nov 11, 2009 7:07 am
Inequality
by heshamelaziry »
Q. If x^2 > y^2, is x>y? 1) x > |y| 2) |x| > y I hate the...
5
Last post by palvarez
Tue Nov 10, 2009 8:59 pm
Divisible qn
by hariharakarthi »
Is positive integer n is divisible by 4? 1. n^2 is divisible by 8...
3
Last post by brick2009
Tue Nov 10, 2009 8:59 pm
Triangle
by heshamelaziry »
What is the area of the triangle ABC? 1] AB^2+BC^2 = 22 2] AC^2=22
2
Last post by brick2009
Tue Nov 10, 2009 8:55 pm
mgmat - bank money
by okigbo »
A certain bank has ten branches. What is the total amount of assets...
1
Last post by palvarez
Tue Nov 10, 2009 8:47 pm
|x+2|
by gmatv09 »
If |x+2| = 4, what is the value of x? (1) x^2 not equal to 4 (2) x^2...
3
Last post by grockit_jake
Tue Nov 10, 2009 10:10 am
(SD) of the four
by sanju09 »
What is the standard deviation (SD) of the four numbers p, q, r, and...
3
Last post by xcusemeplz2009
Tue Nov 10, 2009 3:51 am
avg of m integers
by gmatv09 »
If m is a positive odd integer, what is the avg of a certain set of m...
5
Last post by xcusemeplz2009
Tue Nov 10, 2009 1:02 am
pool
by okigbo »
If Pool Y currently contains more water than Pool X, and if Pool X is...
3
Last post by palvarez
Mon Nov 09, 2009 10:34 pm
Number Properties
by hariharakarthi »
If j and k are positive integers, is k a divisor of 24? (1) The...
10
Last post by viju9162
Mon Nov 09, 2009 10:05 pm
DS on Solving addition table with unknown
by r_walid »
The following addition table is given ---x----y---z d---()---()---m...
3
Last post by sanjana
Mon Nov 09, 2009 7:16 pm
p=r
by uptowngirl92 »
1/p > r /r^2 +2 the question is asking: r^2 +2 > pr ?? From...
6
Last post by palvarez
Mon Nov 09, 2009 4:31 pm
Number line Question
by sakurle »
If x is a positive number less than 10, is z greater than the mean of...
8
Last post by Stuart@KaplanGMAT
Mon Nov 09, 2009 3:38 pm
Cost
by heshamelaziry »
In a certain country, the retail price include a value added tax of...
4
Last post by xcusemeplz2009
Mon Nov 09, 2009 6:27 am
OG 11 #154 - Best Approach?
by chipbmk »
Is X negative? 1)x^3(1-x^2)<0 2)x^2-1<0 OA: C Please let me...
4
Last post by Testluv
Mon Nov 09, 2009 4:03 am
% of % -- tough one
by 2010gmat »
Is x% of x% of y equal to x% less than y ? (1) x(x + 100) = 10,000...
6
Last post by Testluv
Sun Nov 08, 2009 3:50 pm
working with fractions
by starz982 »
Carol spends 1/4 of her savings on a stereo and 1/3 less than she...
7
Last post by starz982
Sun Nov 08, 2009 2:51 pm
A decent DS question - Inequalities
by mjsobo »
A decent DS question: Is x > 0? (1) |x + 3| < 4 (2) |x-3| <...
2
Last post by fireplayer
Sun Nov 08, 2009 8:10 am
Confusing Inequalities + absolute value
by yregister »
Hi, writing my Gmat on 9th but still really confused about these...
4
Last post by Testluv
Sat Nov 07, 2009 8:17 pm
GMAT Prep DS Q.
by italian7745 »
Is m + z >0 1) m-3z>0 2) 4z-m<0
3
Last post by palvarez
Sat Nov 07, 2009 5:39 pm
DS question on probability
by r_walid »
what is the prob that a randomly selected studenti is male with brown...
2
Last post by Harbinder
Sat Nov 07, 2009 8:30 am
What is the value of x?
by uptowngirl92 »
What is the value of x? sq root(x^4)=9 sq root(x^2)=-x
10
Last post by life is a test
Sat Nov 07, 2009 3:43 am