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Data Sufficiency

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Last post
University-Faculty Numbers
by harsh.champ »
A university has 2,000 faculty members all of whom have a masters...
2
Last post by shashank.ism
Sun Feb 21, 2010 5:41 am
Male Officer: Female Officer
by harsh.champ »
What is the ratio of male to female officers in the police force in...
2
Last post by shashank.ism
Sun Feb 21, 2010 5:10 am
x-y = ?
by harsh.champ »
If x and y are both positive integers, how much greater is x than y?...
2
Last post by shashank.ism
Sun Feb 21, 2010 5:00 am
Number of Stairs Between Floors
by pierce22884 »
If the two floors in a certain building are 9 feet apart, how many...
4
Last post by shashank.ism
Sun Feb 21, 2010 4:50 am
Concert Ticket
by harsh.champ »
Every pupil in a school was given one ticket for a concert. The...
3
Last post by shashank.ism
Sun Feb 21, 2010 4:47 am
An empty swimming pool
by gmatnmein2010 »
An empty swimming pool with a capacity of 100,000 liters is to be...
2
Last post by shashank.ism
Sun Feb 21, 2010 4:33 am
Algebra Sequence & Series
by and1ms238 »
This problem comes from OG 12 #45. If r is a constant and an=an for...
4
Last post by harsh.champ
Sun Feb 21, 2010 4:19 am
Train
by gmatnmein2010 »
Stations X and Y are connected by two separate, straight, parallel...
3
Last post by harsh.champ
Sun Feb 21, 2010 3:20 am
material A
by gmatnmein2010 »
Material A costs $3 per kilogram, and material B costs $5 per...
2
Last post by shashank.ism
Sun Feb 21, 2010 2:44 am
x tons of gravel
by gmatnmein2010 »
A contractor combined x tons of a gravel mixture that contained 10%...
2
Last post by shashank.ism
Sun Feb 21, 2010 2:31 am
concentration of acid
by gmatnmein2010 »
Xgrams of water were added to the 80 grams of a strong solution of...
3
Last post by shashank.ism
Sun Feb 21, 2010 2:25 am
water(in grams)
by gmatnmein2010 »
How much water (in grams) should be added to a 35%-solution of acid...
2
Last post by shashank.ism
Sun Feb 21, 2010 2:19 am
value of x
by gmatnmein2010 »
if y>=0 , what is the value of x? 1) lx-3l>=y 2) lx-3l<=-y
2
Last post by shashank.ism
Sun Feb 21, 2010 1:29 am
integers
by gmatnmein2010 »
If x and y are integers and y = | x + 3| + | 4 - x|. Does y...
3
Last post by shashank.ism
Sun Feb 21, 2010 1:25 am
Line slope query
by abhi332 »
I have a doubt regarding slope of line if Line A have slope -5 and...
3
Last post by shashank.ism
Sun Feb 21, 2010 1:21 am
rent
by gmatnmein2010 »
The annual rent collected by a corporation from a certain building...
3
Last post by shashank.ism
Sun Feb 21, 2010 1:19 am
non zero integers
by gmatnmein2010 »
If x and y are non-zero integers and |x| + |y| = 32, what is xy? (1)...
3
Last post by shashank.ism
Sun Feb 21, 2010 1:04 am
year,probability,percentages
by bhumika.k.shah »
In year x, it rained on 40% of all Mondays and 20% of all Tuesdays....
9
Last post by shashank.ism
Sun Feb 21, 2010 12:42 am
Bob and Wendy
by gmatnmein2010 »
Bob and Wendy planned to walk from their home to a restaurant for...
3
Last post by shashank.ism
Sat Feb 20, 2010 10:20 pm
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
EXPERT REPLIES
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