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Data Sufficiency

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water tank
by gmatnmein2010 »
Working at a constant rate respectively, pumps X and Y took 48 hours...
2
Last post by shashank.ism
Sat Feb 20, 2010 10:14 pm
sparrow and a hawk
by gmatnmein2010 »
Starting from the same point, a sparrow and a hawk flew in opposite...
3
Last post by shashank.ism
Sat Feb 20, 2010 8:55 pm
Zero to the power
by onedayi'll »
Guys, The question might seems to be stupid but please bear with...
1
Last post by shashank.ism
Sat Feb 20, 2010 8:28 pm
radius of the circle
by gmatnmein2010 »
What is the radius of the circle pictured to the right? (1) The...
4
Last post by thephoenix
Sat Feb 20, 2010 8:14 pm
DS + Time and Distance
by harsh.champ »
How long did it take Henry to drive to work last Wednesday? (He did...
3
Last post by thephoenix
Sat Feb 20, 2010 7:53 pm
If Jim earns x dollars per hour
by gmatnmein2010 »
If Jim earns x dollars per hour, it will take him 4 hours to earn...
3
Last post by thephoenix
Sat Feb 20, 2010 6:29 pm
Milk
by shashank.ism »
A container is having 30 L of pure milk. In the first operation, 10 L...
1
Last post by money9111
Sat Feb 20, 2010 5:06 pm
integer
by gmatnmein2010 »
Is positive integer n - 1 a multiple of 3? (1) n3 - n...
4
Last post by onedayi'll
Sat Feb 20, 2010 4:09 pm
Is xy + z = z
by gmatnmein2010 »
Is xy + z = z, is |x-y| > 0 ? (1) x ≠ 0 (2) y = 0
5
Last post by shashank.ism
Sat Feb 20, 2010 1:46 pm
What is the value of x?
by gmatnmein2010 »
What is the value of x? (1) 2x - 5y + 6 = 12 (2) 8x -...
3
Last post by shashank.ism
Sat Feb 20, 2010 1:36 pm
piglet
by gmatnmein2010 »
Each piglet in a litter is fed exactly one-half pound of a mixture of...
3
Last post by shashank.ism
Sat Feb 20, 2010 1:16 pm
is a + b a multiple of 3?
by gmatnmein2010 »
If a and b are both single-digit positive integers, is a + b a...
4
Last post by shashank.ism
Sat Feb 20, 2010 12:28 pm
Is the product of a and b odd?
by gmatnmein2010 »
Is the product of a and b odd? (1) a has exactly 2 factors. (2) b =...
3
Last post by shashank.ism
Sat Feb 20, 2010 12:18 pm
Bill and Sally
by gmatnmein2010 »
Bill and Sally see each other across a field. They are 500 feet...
4
Last post by shashank.ism
Sat Feb 20, 2010 12:03 pm
DS- Equilateral Triangle
by harsh.champ »
Is the length of a side of equilateral triangle E less than the...
9
Last post by shashank.ism
Sat Feb 20, 2010 10:56 am
Co-ordinate Geometry~~
by apoorva.srivastva »
line m and n pass through point (1,2). Is the slope of m greater than...
8
Last post by kstv
Sat Feb 20, 2010 10:51 am
I need help to solve it.........
by Alfred »
Hello friends This is a question of arithmetic related to number...
9
Last post by shashank.ism
Sat Feb 20, 2010 5:08 am
DS : xy > 0
by harsh.champ »
Is xy > 0 ? 1. x/y < 0 2. x + y < 0
7
Last post by rohankelkar81
Sat Feb 20, 2010 2:59 am
Probability + DS
by harsh.champ »
One number, n, is selected at random from a set of 10 integers. What...
5
Last post by shashank.ism
Fri Feb 19, 2010 10:41 pm
DS - Magazine articles
by harsh.champ »
Fifty percent of the articles in a certain magazine are written by...
2
Last post by shashank.ism
Fri Feb 19, 2010 10:24 pm
xz
by gmatnmein2010 »
If zy<xy<0 is |x-z|+|x|=|z| 1.z<x 2.y>0 A. Statement (1)...
1
Last post by ajith
Fri Feb 19, 2010 8:56 pm
DS - Geometry
by harsh.champ »
In triangle ABC, AB = x, BC = y, and CA = y-4. Which of the three...
1
Last post by shashank.ism
Fri Feb 19, 2010 11:40 am
Wording on GMAT
by student22 »
x is one of the numbers&#58; 3 or 6. Is xy equal to 12 ?...
4
Last post by student22
Fri Feb 19, 2010 11:14 am
700 Algrbra! Need help again. Thanks so much!
by YTT »
Could anyone explain to me why the number 1 would work in the first...
5
Last post by shashank.ism
Fri Feb 19, 2010 11:00 am
DS Q
by Inspired »
Two water tanks, X and Y, were drained simultaneously. If X contained...
6
Last post by shashank.ism
Fri Feb 19, 2010 10:46 am
Median problem
by mgmt_gmat »
Lists S and T consist of the same number of positive integers. Is the...
6
Last post by thephoenix
Fri Feb 19, 2010 10:40 am
DS - Bucket
by harsh.champ »
A bucket was placed under a dripping tap which was dripping at a...
2
Last post by shashank.ism
Fri Feb 19, 2010 10:32 am
value of r
by daretodream »
If n is a positive integer and r is the remainder when (n-1)(n+1) is...
2
Last post by thephoenix
Fri Feb 19, 2010 10:14 am
DS - Gates
by harsh.champ »
A certain straight ground has four gates, G1, G2, G3 and G4 (in that...
2
Last post by shashank.ism
Fri Feb 19, 2010 10:00 am
Perplexing Inequality Issue: Is x less than 20?
by beat2009 »
Question: Is x less than 20? (St 1): The sum of x and y is less than...
9
Last post by shashank.ism
Fri Feb 19, 2010 6:25 am
Is xy > x2y2?
by Sanket05 »
Is xy > x2y2? (1) 14x2 = 3 (2) y2 = 1 A. Statement (1) ALONE is...
10
Last post by shashank.ism
Fri Feb 19, 2010 6:16 am
The terrorist’s eye
by sanju09 »
A soldier standing on the center of a circular community hall, which...
1
Last post by harsh.champ
Fri Feb 19, 2010 5:28 am
DS-Geometry
by harsh.champ »
Is line l parallel to the y-axis? (1) The equation of line l is x =...
15
Last post by shashank.ism
Fri Feb 19, 2010 1:34 am
Number Properties DS
by subgeeth »
If the prime numbers p and t are the only prime factors of the...
8
Last post by shashank.ism
Fri Feb 19, 2010 1:02 am
Fishing Trip
by harsh.champ »
If on a fishing trip Jim and Tom each caught some fish, which one...
8
Last post by gmatmachoman
Thu Feb 18, 2010 9:57 am
2 Math Doubts - Tricky !!
by mohit11 »
1) Can someone if there is a condition where a-b/c =0 does not equate...
4
Last post by shashank.ism
Thu Feb 18, 2010 9:23 am
Vinegar and Water
by harsh.champ »
A certain 4-liter solution of vinegar and water consists of x liters...
3
Last post by harsh.champ
Thu Feb 18, 2010 1:13 am
DS r+s
by harsh.champ »
If r and s are integers, is r + s divisible by 3? (1) s is divisible...
3
Last post by harsh.champ
Thu Feb 18, 2010 12:53 am
collection of tough problems from G PREP - 20
by abhasjha »
In a certain year the United Nations' total expenditures were...
5
Last post by komal
Thu Feb 18, 2010 12:30 am
DS - Single Family Homes
by harsh.champ »
Of the 230 single-family homes built in City X last year, how many...
8
Last post by harsh.champ
Wed Feb 17, 2010 11:55 pm
tuition fee
by harsh.champ »
At a certain state university last term, there were p students each...
4
Last post by harsh.champ
Wed Feb 17, 2010 11:34 pm
k^2 - k
by harsh.champ »
What is the value of (k^2 - k)? (1) The value of (k - 1/k) is 1. (2)...
12
Last post by harsh.champ
Wed Feb 17, 2010 11:07 pm
probability - red and white marbles!
by vscid »
A jar contains 8 red marbles and y white marbles. If Joan takes 2...
2
Last post by ajith
Wed Feb 17, 2010 7:13 pm
take 30 seconds only
by sanju09 »
What is x^8 - y^8 equal to? (1) x^2 + y^2 = 4. (2) x^2 - y^2 = 0.
2
Last post by shashank.ism
Wed Feb 17, 2010 12:41 pm
Terry and Pat
by harsh.champ »
Terry and Pat collected cans for recycling. What was the ratio of the...
4
Last post by shashank.ism
Wed Feb 17, 2010 12:33 pm
Populations of City Y and Z.
by harsh.champ »
What are the populations of Cities Y and Z ? (1) The population of...
3
Last post by shashank.ism
Wed Feb 17, 2010 12:26 pm
Investment
by mgmt_gmat »
A total of $60,000 was invested for one year. Part of this amount...
3
Last post by thephoenix
Wed Feb 17, 2010 2:50 am
Data Sufficiency - Odds and Even
by umasastry »
If x>1, what is the value of integer x? 1). There are x unique...
2
Last post by thephoenix
Wed Feb 17, 2010 1:54 am
kaplan 800
by rahul.s »
what is the value of a - b? (1) a^2 - b^2 = 9 (2) a^2 - 2ab + b^2 = 1...
10
Last post by rahul.s
Wed Feb 17, 2010 1:53 am
Inequality & absolute value (Mgmat)
by joyseychow »
Is x·|y| > y2? (1) x > y (2) y > 0 OA is C
3
Last post by thephoenix
Wed Feb 17, 2010 12:55 am