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Data Sufficiency

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POSTS
Last post
Confusing DS - need the right approach
by netneoaaa »
If Carmen had 12 more tapes, she would have twice Rafael's. Does...
2
Last post by discreet
Fri Jul 06, 2007 10:46 pm
ds set:
by thumpin_termis »
What is the volume of a certain cube? 1. The sum of the areas of the...
2
Last post by thumpin_termis
Fri Jul 06, 2007 7:51 pm
OG11-Q108
by RM »
OG11-Q108
1
Last post by givemeanid
Fri Jul 06, 2007 4:33 pm
DS Question - Number properties
by tinni »
If n is an integer and 100 < n <200, what is the value of n?...
3
Last post by discreet
Fri Jul 06, 2007 12:24 am
ds 23
by dunkin77 »
If n is a positive integer that is less than 10, what is the value of...
14
Last post by discreet
Fri Jul 06, 2007 12:22 am
PowerPrep DS Question
by jrbrown2 »
Is RST = 1? (1) RS = 1 (2) ST = 1 Please give an explanation.
3
Last post by discreet
Fri Jul 06, 2007 12:13 am
One more
by jayhawk2001 »
is |x-y| > |x| - |y| 1. y<x 2. xy <0 B : statement 2 is...
0
Last post by jayhawk2001
Thu Jul 05, 2007 9:33 pm
Gmat prep
by mttorii »
Hi all. I didn't understand why C is correct...
1
Last post by jrbrown2
Thu Jul 05, 2007 7:47 pm
PS set:
by thumpin_termis »
In the figure above, D is a point on the side AC of triangle ABC. Is...
1
Last post by givemeanid
Thu Jul 05, 2007 12:01 pm
One more
by netneoaaa »
if z^n=1, what is z 1. n is nonzero integer 2. z>0 ans : both c
1
Last post by jrbrown2
Thu Jul 05, 2007 7:07 am
DS Question - machine and rate
by tinni »
If two copying machines work simultaneously at their respective...
2
Last post by tinni
Wed Jul 04, 2007 10:58 am
Gmat Prep - Triangle
by sudhirsk »
Triangle DS question. Please help.
2
Last post by sck159
Sun Jul 01, 2007 4:24 pm
Tough DS, Please help
by chrisgiles01 »
If x, y, and z are integers greater than 1, and (3^27)(35^10)(z) =...
2
Last post by chrisgiles01
Sun Jul 01, 2007 10:15 am
GMAT PREP
by hrn423 »
I am new (test on Saturday and stressing) Please see attached....
2
Last post by moneyman
Sun Jul 01, 2007 9:43 am
DS OG 11 QUESTION 147
by treavorhill »
147. IF N IS A POSITIVE INTEGER, IS N^3-N DIVISIBLE BY 4. 1. N = 2K +...
2
Last post by discreet
Wed Jun 27, 2007 11:56 pm
gmat prep
by sneakpeek »
what is the ratio kn/mn ?
1
Last post by Neo2000
Wed Jun 27, 2007 7:39 pm
DS - Geometry
by f2001290 »
Please help
3
Last post by gabriel
Mon Jun 25, 2007 9:15 am
gmat prep
by sneakpeek »
Each of the numbers w,x,y, and z is equal to either 0 or 1. What is...
2
Last post by sneakpeek
Mon Jun 25, 2007 8:31 am
GMAT Prep
by thumpin_termis »
Now, the wording of this confused me a tad. I initially thought that...
3
Last post by harry_x1
Sat Jun 23, 2007 1:28 am
DS
by f2001290 »
Stations X and Y are connected by two separate, straight, parallel...
5
Last post by jrbrown2
Wed Jun 20, 2007 7:33 pm
Gmat Prep exam word question
by Fab_Vr6 »
Al, Pablo, and Marsha shared the driving on a 1500 mile trip. which...
1
Last post by jrbrown2
Tue Jun 19, 2007 8:36 pm
DS 26
by dunkin77 »
If positive integer x is a multiple of 6 and positive integer y is a...
1
Last post by jrbrown2
Tue Jun 19, 2007 3:52 pm
prep
by dunkin77 »
Is lxl< 1? (1) lx + 1l = 2lx - 1l (2) lx - 3l &#8800; 0 I...
3
Last post by dunkin77
Tue Jun 19, 2007 12:42 am
ds question
by dunkin77 »
What is the median number of employees assigned per project for the...
2
Last post by AMalik
Sun Jun 17, 2007 10:08 pm
GMAT Prep Data Sufficiency Question
by jrbrown2 »
This DS question is driving me crazy? Any help is greatly...
1
Last post by jayhawk2001
Sun Jun 17, 2007 7:17 pm
DS question GMAT prep exam
by Fab_Vr6 »
what is the value of A^4-B^4? a) if A^2 - B^2 = 16 b) if A + B = 8
1
Last post by thumpin_termis
Sun Jun 17, 2007 6:49 pm
ds question
by dunkin77 »
p is an integer; n is an integer; and p/n is an integer. Is p/n odd?...
1
Last post by jayhawk2001
Sun Jun 17, 2007 2:14 pm
GMAT Prep - HCF and LCM
by f2001290 »
Please help
1
Last post by jayhawk2001
Sun Jun 17, 2007 1:32 pm
GMAT prep - median and mean
by jayhawk2001 »
OA after a few reply. Any quick way to solve this. x, 3, 1, 12, 8 If...
3
Last post by f2001290
Sun Jun 17, 2007 8:13 am
GMATprep - quadrilateral
by jayhawk2001 »
OA after a few reply. Please provide explanations. Is the measure of...
1
Last post by f2001290
Sun Jun 17, 2007 7:59 am
Marla from OG Preptest
by drhomler »
During a 40 mile trip Marla traveled at an average speed of x miles...
4
Last post by jayhawk2001
Sat Jun 16, 2007 9:20 am
DS - Set 2 Math
by rajatmehta »
Each person on a committee with 40 members voted for exactly one of 3...
1
Last post by jayhawk2001
Fri Jun 15, 2007 7:25 pm
Tricky
by f2001290 »
If x and y are integers and x > 0, is y > 0? (1) 7x - 2y > 0...
2
Last post by f2001290
Fri Jun 15, 2007 10:34 am
Question on Modulus
by f2001290 »
If xyz &#8800; 0, is x (y + z) = 0? (1) ¦y + z¦ = ¦y¦ + ¦z¦...
2
Last post by f2001290
Fri Jun 15, 2007 10:32 am
ds question
by dunkin77 »
If the units digit of the three-digit positive integer k is nonzero,...
1
Last post by Neo2000
Fri Jun 15, 2007 9:50 am
1-11
by dunkin77 »
Mary persuaded n friends to donate $500 each to her election...
2
Last post by dunkin77
Fri Jun 15, 2007 9:38 am
Number Properties
by f2001290 »
If w and c are integers, is w > 0? (1) w + c > 50 (2) c > 48
1
Last post by Neo2000
Fri Jun 15, 2007 9:34 am
DS - Set 25 Math
by f2001290 »
If the average (arithmetic mean) of the assessed values of x houses...
4
Last post by simplythebest
Fri Jun 15, 2007 5:25 am
prep question
by dunkin77 »
Hi, I don't have OA but is it B? Can anyone check pls?
3
Last post by f2001290
Thu Jun 14, 2007 12:49 pm
Gmatprep DS - LCM and GCF
by jayhawk2001 »
OA after a few reply. If n and t are positive integers, which is the...
5
Last post by drhomler
Thu Jun 14, 2007 6:18 am
DS - Modulus Question
by f2001290 »
Q7: What is the value of &#9474;x + 7&#9474;? (1)...
1
Last post by drhomler
Wed Jun 13, 2007 12:58 pm
inequality question
by jamesk486 »
x is not 1, (1-x^5)/(1-x) < 1/1-x ? (1) x>0 (2) x<1 using...
2
Last post by mikeclarke44
Wed Jun 13, 2007 8:15 am
GMATprep DS - congress
by jayhawk2001 »
10 points for the answer with the least number of steps :-). OA after...
6
Last post by jayhawk2001
Wed Jun 13, 2007 7:18 am
DS
by f2001290 »
At a fruit stand yesterday, the price of each apple was $0.10 more...
2
Last post by f2001290
Wed Jun 13, 2007 1:23 am
DS - Set 25 Math
by f2001290 »
If (x^3)(y^4)=5,000, is y=5? (1)y is a positive integer. (2)x is an...
2
Last post by Prasanna
Tue Jun 12, 2007 3:54 pm
DS
by f2001290 »
If M is a positive integer, then M^3 has how many digits? (1) M has 3...
1
Last post by Prasanna
Tue Jun 12, 2007 3:45 pm
ds
by f2001290 »
Last year in a group of 30 businesses, 21 reported a net profit and...
1
Last post by Prasanna
Tue Jun 12, 2007 3:37 pm
DS
by f2001290 »
if X>1 and Y>1, is X<Y? (1) X^2/(XY+X)<1 (2) XY/Y^2-Y<1
1
Last post by Prasanna
Tue Jun 12, 2007 3:26 pm
ds question
by dunkin77 »
A certain list contains serveral diff integers. Is the product of the...
2
Last post by dunkin77
Tue Jun 12, 2007 12:11 pm
gmat prep question
by yvonne12 »
If x+y are greater than 0, is X=1? I. x/y =1 II. xy=1 why do we need...
5
Last post by dunkin77
Tue Jun 12, 2007 5:51 am