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Data Sufficiency

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POSTS
Last post
Exponents
by heshamelaziry »
10^(x+1) * 7^(y-1) = ? (A) 10^x * 7^y = 2401 (B) x + y = 4 OA A
2
Last post by 2010gmat
Wed Nov 04, 2009 9:35 pm
DS on probability question
by r_walid »
If 2 diff. representatives are to be selected from a group of 10 ppl...
3
EXPERT REPLIES
Last post by beatthegmat
Wed Nov 04, 2009 9:26 pm
Terminating Decimal
by farooq »
Q:1 A decimal that doesn't keep going is a terminating...
4
Last post by 2010gmat
Wed Nov 04, 2009 9:24 pm
Digits
by Abdulla »
If m and n are both two-digit numbers, and m-n = 11x, is x an...
0
Last post by Abdulla
Wed Nov 04, 2009 8:39 pm
Number Properties
by heshamelaziry »
The three digit positive integer N= a2b is both a multiple of 5 and...
1
Last post by Harbinder
Wed Nov 04, 2009 7:33 pm
PLane Geometry
by heshamelaziry »
At what point on the coordinate plane do the following two lines...
0
Last post by heshamelaziry
Wed Nov 04, 2009 6:15 pm
Is a a prime number
by catchdharani »
Is integer a a prime number 1) 2a has exactly 3 factors 2) a is an...
3
Last post by chipbmk
Wed Nov 04, 2009 3:30 pm
confused on question DS #70 in the OG12
by bynddrvn »
I understand how you could answer this question with both statement 1...
3
Last post by bynddrvn
Wed Nov 04, 2009 7:47 am
Helen
by okigbo »
How long did it take Helen to drive from home to her parents? a....
2
Last post by getso
Wed Nov 04, 2009 5:45 am
XY PLANE-GMAT PREP
by smclean23 »
If k is a line in the xy-plane, what is the slope of k? 1. The x...
2
Last post by farooq
Wed Nov 04, 2009 1:15 am
xy-plane
by beater »
In the xy-plane, line l and line k intersect at the point (16/5,...
3
Last post by farooq
Wed Nov 04, 2009 1:01 am
Confused by solution
by heyvishy »
I saw a solution to a DS problem , which is confusing me. Question:If...
2
Last post by mehravikas
Tue Nov 03, 2009 7:00 pm
a + b > - c
by maihuna »
If a + b > - c, is a > 2? (1) a + b + c > 8 (2) - a + b + c...
9
Last post by satish.nagdev
Tue Nov 03, 2009 5:51 pm
Kaplan 800 DS
by punitkaur »
The average (arithmetic mean) monthly balance in Company X's petty...
2
Last post by punitkaur
Tue Nov 03, 2009 1:55 pm
Tough DS: please help
by gmat620 »
If x and y are positive integer, what is the remainder when x is...
11
Last post by chipbmk
Tue Nov 03, 2009 9:16 am
DS: Question 115, OG 12
by gdk »
Hi Frns, Can anybody plz make me understand how is Statement A...
0
Last post by gdk
Tue Nov 03, 2009 8:51 am
72 Speed DS
by ern5231 »
Q1)A, B are 100m above the ground and B is dropped 10 sec before A....
4
Last post by life is a test
Tue Nov 03, 2009 6:56 am
Inequality & Word Problem: Gift Wrapping
by beeparoo »
At a certain department store present-wrapping counter, each clerk...
5
EXPERT REPLIES
Last post by anandr84
Tue Nov 03, 2009 4:41 am
Coordinates
by heshamelaziry »
Does the equation y = (x - p)(x - q) intercept the...
1
Last post by 2010gmat
Tue Nov 03, 2009 1:53 am
Square
by heshamelaziry »
E, F, G, and H are the vertices of a polygon. Is polygon EFGH a...
1
Last post by life is a test
Mon Nov 02, 2009 8:30 pm
Standard deviation
by andrew.ng »
A list of 4 numbers a, b, c, d has standard deviation equal to that...
3
Last post by mehravikas
Mon Nov 02, 2009 7:32 pm
power prep q. consecutive integers.
by khushboo143 »
n is the product of least and greatest 6 consecutive integers.what is...
2
Last post by khushboo143
Mon Nov 02, 2009 6:20 pm
gprep
by uptowngirl92 »
Got the answer but not too sure of the process..
3
Last post by khushboo143
Mon Nov 02, 2009 2:50 pm
Employees
by okigbo »
Each employee is either a director or a manager. What % of the...
3
Last post by mehravikas
Mon Nov 02, 2009 11:28 am
x is not equal to y
by uptowngirl92 »
x-y/x+y>1 x-y>x+y y>0 So basically the question is asking...
2
Last post by life is a test
Mon Nov 02, 2009 7:27 am
og11 #78
by uptowngirl92 »
Really did'nt understand how they approached this question!!Please...
3
Last post by life is a test
Mon Nov 02, 2009 6:54 am
DS - xyz > 0 ?
by Xbond »
Hi there, I would like to understand why E is not the right answer....
2
Last post by Xbond
Sun Nov 01, 2009 9:23 pm
DS - Machines X and Y work
by Xbond »
Hi there, Could you explain the concept of this DS in simplest way...
2
Last post by Testluv
Sun Nov 01, 2009 7:37 pm
Gmat Prep
by John Corn »
x not equal to -y is (x-y)/(x+y)>1? 1) x>0 2) y<0 IO B...
7
Last post by khushboo143
Sun Nov 01, 2009 3:25 pm
OG_DS_73, Stuck on zero
by mathelites »
Hello forum, I am having an issue figuring out this question#73, data...
2
Last post by Testluv
Sun Nov 01, 2009 12:40 pm
OG11_DS_Q151
by farooq »
Q: x and y are positive integers, is ratio of x to y greater than 3?...
2
Last post by life is a test
Sun Nov 01, 2009 9:36 am
GPrep-2
by enniguy »
Couldn't find this question anywhere in the forum. If x - y > 10,...
4
Last post by NikolayZ
Sun Nov 01, 2009 5:26 am
What is the value of sqrt (x)? EXPERTS PLEASE HELP !!
by apoorva.srivastva »
If &#8730;x is an integer, what is the value of &#8730;x? 1.)...
30
EXPERT REPLIES
Last post by Stuart@KaplanGMAT
Sat Oct 31, 2009 10:59 pm
OG question
by farooq »
Question no 153 in OG_11 in DS section sounds little bit tricky to...
0
Last post by farooq
Sat Oct 31, 2009 10:46 pm
number property DS, help.pls
by tanviet »
what is the greatest common factor of the positive integers j and k...
3
Last post by mehravikas
Sat Oct 31, 2009 6:31 pm
do any points on line k lie in quadrant III?
by uptowngirl92 »
In the xy-coordinate system, do any points on line k lie in quadrant...
1
Last post by crackgmat007
Sat Oct 31, 2009 11:54 am
Looks simple. OA not matching.
by anandr84 »
Is x^2 + y^2 > 6? (1) (x + y)^2 > 6 (2) xy = 2 A. Statement (1)...
3
Last post by anandr84
Sat Oct 31, 2009 7:41 am
Tough DS
by edwardyong »
In which quadrant of the coordinate plane does the point (x, y) lie?...
4
Last post by Testluv
Fri Oct 30, 2009 9:21 pm
Coordinates
by gmatgirl12 »
In the xy plane, does the equation y=3x+2 contain point (r,s)? 1)...
2
Last post by gmatgirl12
Fri Oct 30, 2009 4:14 pm
Is y < (x+z)/2 ?
by Andrei »
Hi, I found the following problem in the Gmatprep test: Is y <...
2
Last post by ayashlaha
Fri Oct 30, 2009 11:00 am
inequality
by tanviet »
this is from 15 testset n>0, which is greater, 20 percent of n or...
4
Last post by ayashlaha
Fri Oct 30, 2009 10:11 am
beautiful DS, pls, help
by tanviet »
what is value of the integer n? a,n(n+2)=15 b,(n+2)^n=125
2
Last post by mp2437
Fri Oct 30, 2009 6:32 am
gprep inequality
by uptowngirl92 »
Hey guys I got the answer buthave a querie. Basically the question is...
2
Last post by uptowngirl92
Fri Oct 30, 2009 5:00 am
fraction comparison question
by r_walid »
if a,b,c, and d are positive integers, is (a/b) *(c/d) > c/b? 1-...
1
Last post by jaspreet_takhar
Fri Oct 30, 2009 1:56 am
is x > |y|?
by vivekjaiswal »
If x + y >0, is x > |y|? (1) x > y (2) y < 0 OA is (D)
7
Last post by Testluv
Fri Oct 30, 2009 12:31 am
Standard Deviation
by okigbo »
Some water was removed from each of 6 tanks. If standard deviation of...
3
Last post by life is a test
Thu Oct 29, 2009 7:29 pm
DS ques
by samrat chatterjee »
Someone sort this out please!!!!!!!!
3
Last post by uttam.albela
Thu Oct 29, 2009 7:20 pm
x and y are integers
by pandeyvineet24 »
If x and y are integers and xy ≠ 0, is x - y > 0 ? (1) x /y...
4
Last post by Testluv
Thu Oct 29, 2009 6:00 pm
Probability Question on different topics
by r_walid »
if I have 4 orange balls and 6 white balls in a jar. what is the...
1
Last post by mp2437
Thu Oct 29, 2009 1:19 pm
Median
by okigbo »
If the average of five numbers, x, 7, 2, 16, and 11 = the median,...
2
Last post by mp2437
Thu Oct 29, 2009 10:35 am