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Data Sufficiency

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POSTS
Last post
terminating decimal?
by uptowngirl92 »
Is r/s^2 a terminating decimal? s=225 r=81 OA: C Hey guys i had thot...
5
EXPERT REPLIES
Last post by Nermal
Sun Sep 06, 2009 6:14 am
In a certain coding scheme, each word is encoded by replacin
by sanjib »
In a certain coding scheme, each word is encoded by replacing each...
1
Last post by engg.manik
Sun Sep 06, 2009 4:13 am
s+t is even
by shahdevine »
let s and t be odd integers. is (s-t)/2 even? 1) s+t is even 2) s-t...
3
Last post by PAB2706
Sun Sep 06, 2009 3:09 am
Systematic Inequality Solving
by j41981 »
Hi all, I often come across a DS problem involving inequalities, and...
6
Last post by qwe12
Sun Sep 06, 2009 1:46 am
What is the probability that events A and B both occur?
by sanjib »
What is the probability that events A and B both occur? (1) The...
5
Last post by Nermal
Sun Sep 06, 2009 1:44 am
10^d factor of?
by deagez »
If d is a positive integer and f is the product of the first 30...
6
Last post by qwe12
Sun Sep 06, 2009 12:51 am
gmat math bible-consec integers
by vkb16 »
If r and s are consecutive odd integers, is r>s? I. r and s are...
2
Last post by srivas
Sat Sep 05, 2009 8:53 pm
Is ?
by sanjib »
Pls check the following DS attachment
4
Last post by enniguy
Sat Sep 05, 2009 8:32 pm
What is the value of X+Y?
by kguo »
What is the value of X+Y? (1) X = Y - 3 (2) (2x + 3)^2 = 36 I'm just...
3
Last post by enniguy
Sat Sep 05, 2009 8:27 pm
median of 3 positive number - GMATPrep(TM) question
by Andrei »
Is z equal to the median of the three positive integers, x, y and z?...
4
Last post by enniguy
Sat Sep 05, 2009 7:53 pm
Work Problem
by mlaboda »
If Mike and George working at their respective rates can each...
1
Last post by bharathh
Sat Sep 05, 2009 3:15 pm
What is the area of rectangular region R ?
by sanjib »
What is the area of rectangular region R ? (1) Each diagonal of R has...
3
Last post by maihuna
Sat Sep 05, 2009 11:36 am
Co-ordinate ......(alwz stumped)
by fightthegmat »
In the xy-plane, the line with equation ax + by + c = 0, where abc...
1
Last post by Nermal
Sat Sep 05, 2009 5:37 am
triangle question
by shahab03 »
Answer: A
4
Last post by hpgmat
Fri Sep 04, 2009 11:01 pm
wxy = 24
by hansoo »
If w, x and y are different positive integers, and wxy = 24, is xy...
4
Last post by hansoo
Fri Sep 04, 2009 2:38 pm
How many items did Bob produce last week?
by crazy4gmat »
If Bob produces 36 or fewer in a week, he is paid X dollars per item....
8
Last post by aakaps
Fri Sep 04, 2009 2:36 pm
Is 2X - 3Y < X^2?
by eustudent »
Is 2X - 3Y< X^2 1) 2X - 3Y= 2 2) X>2 and Y>0 OA will be...
4
Last post by navalpike
Fri Sep 04, 2009 10:28 am
x^16 - y^8 + 345y^2 divisible by 15?
by uptowngirl92 »
If x and y are positive integers, is x^16 - y^8 + 345y^2 divisible by...
1
Last post by navalpike
Fri Sep 04, 2009 10:20 am
Mod
by ketkoag »
Please explain the answer.. IMO E .. OA given : c second statement is...
3
Last post by qwe12
Fri Sep 04, 2009 1:42 am
Is M^3>=1
by PAB2706 »
P is integer, m = -P+(-2)^P, Is M^3 is greater than or equal to 1. 1)...
6
Last post by qwe12
Fri Sep 04, 2009 1:18 am
sets!
by n_niaz »
any help guys
5
Last post by qwe12
Fri Sep 04, 2009 12:58 am
bahut accha...
by PAB2706 »
If a and b are integers, and |a| > |b|, is a · |b| < a...
0
Last post by PAB2706
Thu Sep 03, 2009 10:22 pm
Lenght of line segment
by ferpape »
In the figure attached, what is the value of x? 1)The lenght of line...
1
Last post by navalpike
Thu Sep 03, 2009 5:33 pm
|x|>1
by Sher1 »
If x is an integer, is |x|>1 (1 - 2x)(1 + x) < 0 (1 - x)(1 +...
4
Last post by navalpike
Thu Sep 03, 2009 1:33 pm
3 venn
by shahdevine »
There are 68 children in the cafeteria of a school and all of the...
1
Last post by navalpike
Thu Sep 03, 2009 1:13 pm
Double Overlapping Sets
by doclkk »
Guests at a recent party ate a total of fifteen hamburgers. Each...
4
Last post by Stuart@KaplanGMAT
Thu Sep 03, 2009 1:00 pm
is xy<6?
by rainmaker »
Please see the attached pic.
5
Last post by navalpike
Thu Sep 03, 2009 12:54 pm
Inequalities --> m + z > 0
by Gdieterling »
Hello guys, here is a question for you : Is m + z > 0 ? 1) m - 3z...
2
Last post by Gdieterling
Thu Sep 03, 2009 12:20 pm
DS- Absolutes Values
by vani_13in »
If a and b are integers, and |a| > |b|, Is a . |b| < a-b? (1) a...
1
Last post by navalpike
Thu Sep 03, 2009 11:37 am
Inflammation/fever
by eustudent »
Hi, This problem has been posted before, however, I cannot quite get...
7
Last post by mehravikas
Wed Sep 02, 2009 12:13 pm
Jars
by rish »
A certain jar contains only b black marbles, w white marbles, and r...
1
Last post by gmatcoach
Wed Sep 02, 2009 10:43 am
probability/combinatorics
by shahdevine »
There are 3 dimes and 3 quarters in a coin purse. If 4 coins are...
2
Last post by tom4lax
Wed Sep 02, 2009 10:29 am
DS -- Remainders
by msch14 »
What is the remainder when positive integer x is divided by 3? A)....
4
Last post by mgshorrGMAT
Tue Sep 01, 2009 3:30 pm
x-y
by heshamelaziry »
Does x-y = 200 ? (1) x=10^2 (2) x=100 and y=-100 Seems very easy,...
2
Last post by grockit_jake
Tue Sep 01, 2009 1:36 pm
question on Dividing inequalities
by sme0928 »
from MGMAT question Bank: Is mp greater than m? (1) m > p > 0...
8
Last post by Stuart@KaplanGMAT
Tue Sep 01, 2009 1:01 pm
Tough Coordinate geomentry problem
by glorydefined »
In the xy-plane, region R consists of all the points (x, y) such that...
5
Last post by shanrizvi
Tue Sep 01, 2009 12:15 pm
veritas prep question
by hmboy17 »
DS question- is x+y > xy? 1) mode of x = y 2) x<0<y Ans...
3
Last post by Stuart@KaplanGMAT
Tue Sep 01, 2009 11:12 am
Equations
by niraj_a »
If x^2/9 - 4/y^2 = 12, what is the value of x? (1) x/3 + 2/y =...
7
Last post by fruti_yum
Tue Sep 01, 2009 10:10 am
Is Y a fraction?
by umaa »
X,Y > 0 ,If X^3 = Y, is Y a fraction? (1) X^2 is a fraction (2) X...
4
EXPERT REPLIES
Last post by Ian Stewart
Tue Sep 01, 2009 10:08 am
Absolute values - Cant understand explanation
by KK9_GMAT »
Hi, I came upon this data sufficiency problem in the Manhattan GMAT...
4
Last post by fruti_yum
Tue Sep 01, 2009 9:54 am
Performance Tickets
by chetanojha »
Can somebody please explain the answer to me or point me to the link...
1
Last post by shanrizvi
Tue Sep 01, 2009 6:11 am
is (x-y)/(x+y)>1
by crazy4gmat »
If x not equal to -y, is (x-y)/(x+y)>1 ? 1) x>0 2) y<0
1
Last post by tohellandback
Mon Aug 31, 2009 7:47 pm
divisible by 4
by sbasha »
Is +ve Integer n is divisible by 4 ? 1) n^2 is divisible by 8 2)sqrt...
2
Last post by sbasha
Mon Aug 31, 2009 7:29 pm
Is XY>0?
by crazy4gmat »
Is XY>0? (1) X-Y > -2 (2) X-2y > -6
3
Last post by tienvunguyen
Mon Aug 31, 2009 9:57 am
No. Of Sweaters Sold
by chetanojha »
Last Friday a certain shop sold 3/4 of the sweaters in its inventory....
2
Last post by chetanojha
Mon Aug 31, 2009 5:11 am
is n an integer?
by capnx »
If n = p/q and p, q are integers, is n an integer? 1) n^2 is an...
2
Last post by Blues
Mon Aug 31, 2009 3:32 am
students / classrooms
by hpgmat »
a school adminstrator will assign each student in a group of n...
7
Last post by Blues
Mon Aug 31, 2009 1:15 am
DS / x = 3y
by Xbond »
Hi there, Could you explain in the simplest this concept and how to...
6
Last post by ShikenO/kau
Sun Aug 30, 2009 8:43 pm
GMAT prep DS question
by gxj007 »
I'm not sure why (c) wouldn't be correct here. If you know the...
1
Last post by bharathh
Sun Aug 30, 2009 8:31 pm
DS - 1
by Xbond »
Hi there, Could you explain in the simplest this concept and how to...
4
Last post by woo
Sun Aug 30, 2009 7:33 pm