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Data Sufficiency

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probability
by gmatnmein2010 »
When a player in a certain game tossed a coin a number of times, 4...
3
Last post by Stuart@KaplanGMAT
Wed Feb 17, 2010 12:43 am
multiple of 8?
by GhassanMBA »
I was working on a GMATPrep Test and cam across this DS question, had...
2
Last post by GhassanMBA
Tue Feb 16, 2010 10:26 pm
SD
by shashank.ism »
What is the standard deviation (SD) of the four numbers p, q, r, s?...
4
Last post by sumanr84
Tue Feb 16, 2010 10:10 am
virus merges
by sanju09 »
Direction: There is a peculiar species of virus in which one virus...
3
Last post by ajith
Tue Feb 16, 2010 6:42 am
Papgust
by shashank.ism »
Papgust invested a total of $10,000 for a period of one year. Part of...
5
Last post by gmatmachoman
Tue Feb 16, 2010 6:27 am
Gmat prep - simpler than it sounds?
by awilhelm »
Each employee of company z is an employee of either division x or...
5
Last post by sanju09
Tue Feb 16, 2010 5:11 am
X and Y
by shashank.ism »
What is the value of X, if X and Y are two distinct integers and...
3
Last post by ajith
Tue Feb 16, 2010 4:55 am
lying on the same
by sanju09 »
If A, B, C and D are all points in the coordinate plane; then what is...
9
Last post by sanju09
Tue Feb 16, 2010 2:07 am
Integer N
by shashank.ism »
What is the value of the integer N ? (A) N is an integer multiple of...
3
Last post by gmatmachoman
Tue Feb 16, 2010 1:18 am
word problem4
by gmatnmein2010 »
A number of oranges are to be distributed evenly among a number of...
3
Last post by Ian Stewart
Tue Feb 16, 2010 1:01 am
modulus
by gmatnmein2010 »
Is |x-1| < 1? (1) (x-1)^2 <= 1 (2) x^2 - 1 > 0
4
Last post by fibbonnaci
Mon Feb 15, 2010 11:55 pm
X
by shashank.ism »
Is x divisible by 70? (A) x is divisible by 2 and 5. (B) x is...
1
Last post by papgust
Mon Feb 15, 2010 11:42 pm
Bob & Christina
by shashank.ism »
Does Bob have more records in his record collection than Linda has in...
1
Last post by papgust
Mon Feb 15, 2010 11:40 pm
Cube
by shashank.ism »
What is the volume of cube C ? St.(A) The total surface area of C is...
1
Last post by papgust
Mon Feb 15, 2010 11:37 pm
Donuts
by shashank.ism »
How much money is saved by buying a box of a dozen donuts instead of...
1
Last post by papgust
Mon Feb 15, 2010 11:35 pm
word problem
by gmatnmein2010 »
In 2003 Acme Computer priced its computers five times higher than its...
1
Last post by komal
Mon Feb 15, 2010 10:14 pm
ineq
by gmatnmein2010 »
If 6*x*y = x^2*y + 9*y, what is the value of xy? (1) y - x = 3...
3
Last post by ajith
Mon Feb 15, 2010 9:59 pm
word problem2
by gmatnmein2010 »
Last Tuesday a trucker paid $155.76, including 10 percent state and...
1
Last post by komal
Mon Feb 15, 2010 9:07 pm
word problem3
by gmatnmein2010 »
A scientist is studying bacteria whose cell population doubles at...
1
Last post by komal
Mon Feb 15, 2010 9:06 pm
MGMAT DS
by gmatnmein2010 »
Ten years ago, scientists predicted that the animal z would become...
4
Last post by komal
Mon Feb 15, 2010 6:31 pm
MGMAT quant prep
by gmatmachoman »
AT this point of time in my prep, It might sound silly to ask whether...
5
Last post by papgust
Mon Feb 15, 2010 5:47 pm
2 days to go..pls help
by rdchandvadkar »
Hey, i need help.. how to solve this one: 141) The cost of a square...
1
Last post by ajith
Mon Feb 15, 2010 12:48 pm
One more co-ordinate geomatry DS
by akpareek »
Points A, B and C are not on a line. Is AB>12 ? 1) AC = 36 2) BC =...
1
Last post by ajith
Mon Feb 15, 2010 10:20 am
Good Coordinate Geometry DS Question
by mjsobo »
The following is a great coordinate geometry DS question that has...
0
Last post by mjsobo
Mon Feb 15, 2010 8:51 am
cone to the radius
by sanju09 »
What is the ratio of the height of the right circular cone to the...
5
Last post by m&m
Mon Feb 15, 2010 8:19 am
doubt of a repeat
by sanju09 »
If A, B, C, and D are all positive numbers, is the value of A...
3
Last post by sanju09
Mon Feb 15, 2010 3:47 am
HELP: Question about system of equstions
by and1ms238 »
Just have a quick questions concerning one of the free BTG Flash...
1
Last post by Ian Stewart
Mon Feb 15, 2010 12:47 am
OG12 #97
by apoorva.srivastva »
If x is negative, is x < -3 ? (1) x^2 > 9 (2) x^3 <...
2
Last post by gmatmachoman
Mon Feb 15, 2010 12:07 am
DS: GMAT Prep Test 1 Coordinate Algebra
by tallazndood »
Question: In the xy-plane, does the line with equation y=3x+2...
2
Last post by tallazndood
Sun Feb 14, 2010 10:57 pm
Graphical solution to OG DS #109
by xyz21 »
Are positive integers p and q both greater than n? 1) p - q > n 2)...
3
Last post by bondguy
Sat Feb 13, 2010 10:25 pm
What is the value...?
by LMK27 »
What is the easiest way to solve this? If a + b = 9, what is the...
1
Last post by papgust
Sat Feb 13, 2010 8:56 pm
Simple divisibility problem
by jkandas »
OG 11 PS #37. If a positive integer n is divisible by both 5 an 7,...
3
Last post by Stuart@KaplanGMAT
Sat Feb 13, 2010 7:03 pm
Sunday's yesterday
by sanju09 »
What day would today be? (1) Yesterday was Wednesday's tomorrow. (2)...
5
Last post by onedayi'll
Sat Feb 13, 2010 12:02 pm
Orphaned Socks
by sumanr84 »
From a drawer containing black, blue and gray solid-color socks,...
4
Last post by sanju09
Sat Feb 13, 2010 5:47 am
Positive integer
by mgmt_gmat »
If r is a constant and an = r·n for all positive integers n, for...
3
Last post by sanju09
Sat Feb 13, 2010 3:00 am
Consecutive XYZ
by sumanr84 »
If x, y, and z are integers, and x < y < z, is z - y = y...
2
Last post by sumanr84
Fri Feb 12, 2010 11:49 pm
employees
by shashank.ism »
Thirty per cent of the employees of a call centre are males. Ten per...
11
Last post by fibbonnaci
Fri Feb 12, 2010 11:16 pm
DS - factor
by Xbond »
Hi there, Could you help me to resolve this DS and explain the steps...
6
Last post by sanju09
Fri Feb 12, 2010 10:20 pm
exponents
by thephoenix »
Is (4^x )^(5-3x)=1? (1) x is an integer. (2) The product of x and...
10
Last post by ajith
Fri Feb 12, 2010 2:13 pm
Ice cream
by mgmt_gmat »
If Antonio bought two half-gallon cartons of ice cream during a...
1
Last post by ajith
Fri Feb 12, 2010 7:01 am
Sequence
by mgmt_gmat »
In the sequence of nonzero numbers t1, t2, t3, ..., tn, ...,...
1
Last post by ajith
Fri Feb 12, 2010 6:53 am
Equation
by mgmt_gmat »
If x2 + 3x + c = (x + a)(x + b) for all x, what is the value of c ?...
1
Last post by ajith
Fri Feb 12, 2010 6:31 am
Card problem
by mgmt_gmat »
A collection of 36 cards consists of 4 sets of 9 cards each. The 9...
1
Last post by ajith
Fri Feb 12, 2010 6:29 am
Set problem
by mgmt_gmat »
K is a set of integers such that if the integer r is in K, then r + 1...
1
Last post by ajith
Fri Feb 12, 2010 6:23 am
Inequalities
by mgmt_gmat »
Is ¦x - y¦>¦x - z¦? (1) ¦y¦>¦z¦ (2) x...
1
Last post by ajith
Fri Feb 12, 2010 6:21 am
Need help
by mgmt_gmat »
If n and k are positive integers, is n/k an even integer? (1) n is...
1
Last post by ajith
Fri Feb 12, 2010 6:15 am
Data sufficiency
by mgmt_gmat »
The weights of all dishes of type X are exactly the same, and the...
1
Last post by ajith
Fri Feb 12, 2010 6:08 am
Data Sufficiency Question
by umasastry »
Can anybody explain the below problem in terms of data sufficiency? K...
5
Last post by ajith
Thu Feb 11, 2010 11:31 pm
N is a positive integer, is 150/n an int?
by jkandas »
If n is a positive integer, is 150/n an integer? (OG 11 DS 118) (1) n...
2
Last post by jkandas
Thu Feb 11, 2010 5:12 pm
Managers and Directors
by dumb.doofus »
Each employee on a certain task force is either a manager or a...
9
Last post by chaya009
Thu Feb 11, 2010 3:03 pm