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Data Sufficiency

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POSTS
Last post
Inequalities
by rishab1988 »
Is n negative? 1) <0 2) n^2-n-2<0 Should the answer be C or E?
5
EXPERT REPLIES
Last post by rishab1988
Mon Dec 06, 2010 8:03 am
Inequalities 2
by rishab1988 »
1
Last post by GMATGuruNY
Mon Dec 06, 2010 7:50 am
number properties-advanced
by Taniuca »
If x is a positive integer greater than 1, does x have any integer...
1
Last post by beat_gmat_09
Sun Dec 05, 2010 9:13 am
If w + x is < 0, is w - y > 0?
by gmatdriller »
After several failed searches for the question, I have decided to...
5
EXPERT REPLIES
Last post by Rahul@gurome
Sat Dec 04, 2010 11:06 pm
Range
by danjuma »
For the students in class A, the range of their heights is r cm and...
1
EXPERT REPLIES
Last post by Rahul@gurome
Sat Dec 04, 2010 10:56 pm
Cube Problem
by paritosh_b »
Not able to visualise it.Pls help me out A large cube 10cm on a side...
5
Last post by junegmat221
Sat Dec 04, 2010 10:29 pm
Need Help in this DS
by paritosh_b »
During a 7-year period the profits of Midas, Inc. changed by what...
3
Last post by paritosh_b
Sat Dec 04, 2010 8:10 pm
OG#12-DS-64
by tintinusa »
IF d denotes a decimal, is d >= 0.5? 1. When d is rounded to the...
2
Last post by tintinusa
Sat Dec 04, 2010 9:50 am
If WXY does not = 0
by HPengineer »
If wxy ≠ 0, does x = y ? (1) w^x = w^y (2) wxy ≠ xy I...
8
EXPERT REPLIES
Last post by Rahul@gurome
Sat Dec 04, 2010 7:11 am
If x and y are non-zero integers
by missionGMAT007 »
If x and y are non-zero integers and |x| + |y| = 32, what is xy? (1)...
1
EXPERT REPLIES
Last post by Rahul@gurome
Sat Dec 04, 2010 6:50 am
Addressing multiple solutions of eqns with absolute value
by clawhammer »
What is x? (1) |x| < 2 (2) |x| = 3x - 2 Note that, i...
10
EXPERT REPLIES
Last post by Rahul@gurome
Sat Dec 04, 2010 6:12 am
GMAT practice test 2
by kadishmj »
Is the measure of one of the interior angles of quadrilateral ABCD...
7
Last post by clawhammer
Sat Dec 04, 2010 5:09 am
Numbers/Decimals
by anirudhbhalotia »
Solution and explanation is most welcomed! Thanks!
4
Last post by diebeatsthegmat
Sat Dec 04, 2010 12:44 am
are they really tough??
by goyalsau »
a.What is the area of rectangle ? 1. Diagonal is twice as long as...
3
Last post by Night reader
Fri Dec 03, 2010 9:50 pm
Gmat prep
by gettin there »
At a certain pet shop, 1/3 of the pets are dogs, and 1/5 of the pets...
7
Last post by plentyofwill
Fri Dec 03, 2010 11:21 am
Integers Problem
by anirudhbhalotia »
Can some one please explain how to solve this. Thanks!
3
EXPERT REPLIES
Last post by Rahul@gurome
Fri Dec 03, 2010 7:15 am
tough probability DS
by Night reader »
If 2 different members are to be selected at random from a group of 8...
2
Last post by jaymw
Thu Dec 02, 2010 7:46 pm
manhatten review gmat math study guide - data sufficiency
by nickhar130 »
9. At the time of admission, 35 percent of all doctorate students at...
1
Last post by Night reader
Thu Dec 02, 2010 4:20 pm
Shelves
by andret »
DS: Currently there are 50 picture books on each shelf in the...
3
Last post by andret
Thu Dec 02, 2010 1:33 pm
another tricky DS
by Night reader »
At Company X, is the number of employees who work part-time greater...
7
Last post by Night reader
Thu Dec 02, 2010 6:39 am
Tricky Number Prop
by anticipation »
If x and y are positive integers and y = √(9 -x) , what is the...
2
Last post by avigyan710
Thu Dec 02, 2010 5:06 am
DS:b/C
by anjaneiya »
Is (x^2-y^2) divisible by 8? 1) x and y are even integers. 2) (x+y)...
5
Last post by Testluv
Wed Dec 01, 2010 11:42 pm
Tricky Wording
by GHong14 »
What is the average height of n people in the group? 1. The average...
5
Last post by Testluv
Wed Dec 01, 2010 11:40 pm
Challenge-averages
by Night reader »
On six consecutive vocabulary quizzes, Kelvin's lowest score was 70....
2
EXPERT REPLIES
Last post by Night reader
Wed Dec 01, 2010 8:42 pm
DS question from Kaplan
by elangovan28 »
How many cylindrical cans with radius of 2 inches and a height of 6...
1
EXPERT REPLIES
Last post by Rahul@gurome
Wed Dec 01, 2010 9:31 am
Disagree with OA [GMAT-Hacks Challenge number properties]
by Night reader »
When positive integer a is divided by 5, the remainder is 3. What is...
15
Last post by rishab1988
Wed Dec 01, 2010 3:58 am
Plz evaluate my solution - number properties
by Night reader »
Are x, y, and z consecutive integers? (1) The remainder when x + y +...
1
Last post by shovan85
Wed Dec 01, 2010 1:50 am
Dare these number properties DS
by Night reader »
When the positive integer n is divided by 15, the remainder is 4....
3
Last post by Night reader
Tue Nov 30, 2010 10:57 pm
How to read statement
by blsbball »
Is the positive integer n odd? (1) n = 2k + 1, where k is a positive...
2
Last post by shovan85
Tue Nov 30, 2010 11:40 am
OG 12 DS question
by gdk800 »
Jerry bought 7 clothing items, including a coat, and the sum of the...
4
EXPERT REPLIES
Last post by gdk800
Tue Nov 30, 2010 6:55 am
I disagree with the beatthegmat answer to this DS question
by peco »
Please help clarify the solution to this question. Thanks. One...
4
EXPERT REPLIES
Last post by rishab1988
Tue Nov 30, 2010 3:26 am
DS
by danjuma »
is X+ Y < 1? 1. X < 8/9 2. Y < 1/8
2
Last post by KrazyKarl
Mon Nov 29, 2010 9:14 pm
Kaplan Question
by kashefian »
On a certain construction crew there are 3 carpenters for every 2...
7
EXPERT REPLIES
Last post by KapTeacherEli
Mon Nov 29, 2010 8:59 pm
OG DS#120
by GHong14 »
The annual rent collected by corp from certain rent was x percent...
4
Last post by GHong14
Mon Nov 29, 2010 7:06 pm
DS
by danjuma »
If w + x < 0 is w-y > 0? 1. x+ y < 0 2. y< x<w
2
Last post by Laura GMAT Tutor
Mon Nov 29, 2010 11:56 am
DS
by danjuma »
if ax + b=0, is x> 0? 1.a+ b>0 2.a-b>0
2
Last post by Laura GMAT Tutor
Mon Nov 29, 2010 11:40 am
it says difficult geometry (tricky)
by Night reader »
In the Â…figure (attached below), if triangle ABC and triangle ADC...
20
Last post by Geva@EconomistGMAT
Mon Nov 29, 2010 6:12 am
Coordinate Geometry Q - DS
by pratyoosh »
Q. In the xy-plane, at what two points does the graph of y = (x +...
2
Last post by pratyoosh
Mon Nov 29, 2010 12:20 am
Three business partners owned 100% of a certain company
by gmatnmein2010 »
Three business partners owned 100% of a certain company. When they...
4
Last post by tnaim
Sun Nov 28, 2010 8:30 pm
GMAT Prep question
by pratyoosh »
Q. Malik's recipe for 4 servings of a certain dish requires 1 1/2...
3
Last post by tomada
Sun Nov 28, 2010 6:32 pm
Gmat Prep divisibilty remainders
by sdotcruz »
this problem is from the Gmat Prep software. I understand what is...
5
EXPERT REPLIES
Last post by tomada
Sun Nov 28, 2010 5:17 pm
Faster way : Venn diagrams
by wilderness »
Hi, Can anyone explain if there is a faster way than Venn Diagrams to...
13
EXPERT REPLIES
Last post by aslan
Sun Nov 28, 2010 9:20 am
DS-Probability
by danjuma »
A drawer contains 36 stocks and 2 stocks are selected at random...
2
Last post by kevincanspain
Sat Nov 27, 2010 4:04 pm
exponents
by clock60 »
If x, y, and z are integers greater than 1, and (3^27)*(5^10)*(z) =...
2
EXPERT REPLIES
Last post by clock60
Sat Nov 27, 2010 11:48 am
DS questions (OG 12).
by gdk800 »
Q1. What is the median number of employees assigned per project for...
5
Last post by gdk800
Sat Nov 27, 2010 10:00 am
employees
by Viper83 »
If 60 percent of the employees at Company X are female, does Company...
2
Last post by rishab1988
Sat Nov 27, 2010 8:47 am
Multiple of X
by Viper83 »
Is the positive integer x a multiple of 3 ? (1) x is a multiple of...
3
Last post by Viper83
Sat Nov 27, 2010 6:41 am
DS
by danjuma »
Circle C and line K lie in the XY plane . If circle C is centered at...
3
EXPERT REPLIES
Last post by Rahul@gurome
Sat Nov 27, 2010 6:12 am
DS
by danjuma »
A certain lists consists of several different integers. Is the...
2
Last post by goyalsau
Sat Nov 27, 2010 2:58 am
Probalility
by shilpaqueen »
Find the probalility that n divisible by 9? 1.n is a multiple of 3...
10
Last post by goyalsau
Sat Nov 27, 2010 2:52 am