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Data Sufficiency

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gmat prep
by grandh01 »
If K cannot equal 0,1, or -1, is 1/k greater than 0? 1) 1/k-1 >0...
1
Last post by GMATGuruNY
Wed Jul 25, 2012 5:06 pm
DS - Probability - 5 - spinner spunning
by karthikpandian19 »
A certain spinner can land in one of four regions, each of which is...
3
Last post by eagleeye
Tue Jul 24, 2012 6:32 pm
DS - Probability - 6 - students prob.
by karthikpandian19 »
The twenty students in a class are to be randomly assigned parts in a...
2
Last post by eagleeye
Tue Jul 24, 2012 6:21 pm
DS - Probability - 7 - coin
by karthikpandian19 »
When a certain weighted coin is flipped, the probability that it will...
2
Last post by eagleeye
Tue Jul 24, 2012 6:10 pm
DS - Probability - 3 - integers distinct
by karthikpandian19 »
Set G contains 4 distinct positive integers. How many of the integers...
2
Last post by eagleeye
Tue Jul 24, 2012 5:53 pm
Error in a Solution to Official GMAT question
by kartikshah »
I suspect the 7 used in the hundredth's place in the solution is...
1
Last post by eagleeye
Tue Jul 24, 2012 6:38 am
DS - Probability - 6 - prime
by karthikpandian19 »
A set contains n different positive integers. What is the probability...
2
Last post by niketdoshi123
Tue Jul 24, 2012 5:42 am
OG11 - DS#71
by absolut_frui2233 »
Hey guys, this may look like a straightforward question and I may be...
6
Last post by jamesacorrea
Tue Jul 24, 2012 2:44 am
X+Y = X.Y
by kartikshah »
Does x + y = x.y ? (1) The product of x and positive integer z is not...
2
Last post by Birottam Dutta
Mon Jul 23, 2012 5:28 pm
Divisibility DS
by sachindia »
If y is an integer , is y^3 divisible by 9? 1)y is divisible by 4....
5
Last post by sachindia
Mon Jul 23, 2012 8:16 am
DS numbers
by sachindia »
K is a set of numbers such that a) if x is in K, then -x is in K and...
2
Last post by Anurag@Gurome
Mon Jul 23, 2012 6:45 am
Properties of numbers OG question
by gmattesttaker2 »
Hello, This question is from OG 13. P. 308: What is the tenths digit...
1
Last post by eagleeye
Sun Jul 22, 2012 9:24 pm
If c & d are positive, is d an integer
by eccentric »
If c & d are positive, is d an integer ? i) c=d^3 ii) d=sqrt{c)
1
Last post by eagleeye
Sun Jul 22, 2012 5:26 pm
DS - numbers
by confuse mind »
Is y an integer? 1. y^3 is an integer 2. 3y is an integer IMO - C
4
Last post by theCEO
Sat Jul 21, 2012 10:10 pm
DS - Revenue, Sales
by karthikpandian19 »
The annual report of a mining company includes a circle graph showing...
7
Last post by niketdoshi123
Sat Jul 21, 2012 9:37 pm
DS: Absolute value
by ikaplan »
Is |x|=y-z (1) x+y=z (2) x<0
1
Last post by eagleeye
Sat Jul 21, 2012 7:22 pm
Algebra Strategies problem
by gmattesttaker2 »
Hello, This is taken from MGMAT Strategy Guide 2 (5th edition), P....
2
Last post by gmattesttaker2
Sat Jul 21, 2012 12:48 pm
DS - Difficult 700 level Q - SI & CI
by karthikpandian19 »
Tamir deposits $100,000 in a basic savings account that yields b%...
2
Last post by eagleeye
Sat Jul 21, 2012 11:52 am
Positive numbers
by prat_agl »
Are x and y both Positive? 1) 2x-2y =1 2) x/y >1 OA after some...
3
Last post by prat_agl
Sat Jul 21, 2012 9:46 am
OG - 2nd Edition - Question 106
by shanice »
If kmn is not equal to 0, is x/m(m^2 + n^2 + k^2) = xm + yn + zk? (1)...
3
Last post by leumas
Sat Jul 21, 2012 5:40 am
Linda's investments (GMAT Prep 2)
by alex.gellatly »
Linda put an amount of money into each of two new investment, A and...
1
Last post by Anurag@Gurome
Sat Jul 21, 2012 2:43 am
measure of angle BAQ? (GMAT Prep 2)
by alex.gellatly »
In the figure shown, point O is the center of the semicircle and...
1
Last post by Anurag@Gurome
Sat Jul 21, 2012 2:20 am
value of xy? (GMAT Prep 2)
by alex.gellatly »
If x and y are positive integers, what is the value of xy? 1. The...
2
Last post by Anurag@Gurome
Sat Jul 21, 2012 1:56 am
Pigs and Cows (GMAT Prep 2)
by alex.gellatly »
Of the 60 animals on a certain farm, 2/3 are either pigs or cows. How...
1
Last post by Anurag@Gurome
Sat Jul 21, 2012 1:45 am
OG - 2nd Edition - Question 50
by shanice »
If the total price of n equally priced shares of a certain stock was...
2
Last post by shanice
Fri Jul 20, 2012 8:25 pm
Coordinate Question-2nd Edition - OG
by shanice »
In the xy-plane, point (r,s) lies on a cirle with center at the...
4
Last post by shanice
Fri Jul 20, 2012 8:17 pm
Consecutive integers
by niketdoshi123 »
The sum of n consecutive positive integers is 45. What is the value...
3
Last post by imskpwr
Fri Jul 20, 2012 7:45 am
Challenge Data Sufficiency Question
by Jim@StratusPrep »
You will have to click on the image to see the problem: Try this...
7
Last post by Jim@StratusPrep
Fri Jul 20, 2012 5:27 am
Sequence of 3s
by kartikshah »
If S is a sequence of consecutive multiples of 3, how many multiples...
1
Last post by Anurag@Gurome
Fri Jul 20, 2012 4:20 am
Triangles with same base and height
by kartikshah »
What is the area of triangle BDC? (1) The area of triangle AED is 16....
1
Last post by eagleeye
Fri Jul 20, 2012 3:40 am
OG - Question 21 - 2nd Edition
by shanice »
A collection of 36 cards consists of 4 sets of 9 cards each. The 9...
2
Last post by niketdoshi123
Thu Jul 19, 2012 11:58 pm
OG=Question 67 - 2nd Edition
by shanice »
What was the ratio of the number of cars to the number of trucks...
2
Last post by shanice
Thu Jul 19, 2012 10:00 pm
In the figure shown, what is the value of x?
by alexdallas »
hey guys, anyone can help with this one? thank you why cant i attach...
17
Last post by gmatter2012
Wed Jul 18, 2012 5:00 am
is mpt an even integer?
by alex.gellatly »
If m,p, and t are positive integers and m<p<t, is the product...
3
Last post by GMATGuruNY
Wed Jul 18, 2012 3:11 am
Absolute value
by alex.gellatly »
For this question I am going to use ~ as the absolute value sign as I...
2
Last post by Anurag@Gurome
Tue Jul 17, 2012 11:12 pm
Demographic study
by alex.gellatly »
In a demographic study, the population and total income of a certain...
1
Last post by niketdoshi123
Tue Jul 17, 2012 9:03 pm
DS Numbers
by sachindia »
Is x2(x square) greater than x? 1)x square greater than 1 2) x is...
6
Last post by tisrar02
Tue Jul 17, 2012 8:22 pm
Is x² ≤ 10y² ?
by kartikshah »
Is x² ≤ 10y² ? 1. 0 < x < 2 2. 1 < y < 2...
2
Last post by tisrar02
Tue Jul 17, 2012 7:19 pm
What is the value of y?
by kartikshah »
What is the value of y? 1. When y is multiplied by 6 the result is...
3
Last post by tisrar02
Tue Jul 17, 2012 7:13 pm
Inequality
by niketdoshi123 »
If p < q and p < r, is pqr < p? (1) pq < 0 (2) pr < 0
3
Last post by Anurag@Gurome
Tue Jul 17, 2012 9:33 am
Hard DS Question- M-GMAT Problem
by tisrar02 »
If a and b are integers, and |a| > |b|, is a · |b| < a...
5
Last post by GMATGuruNY
Tue Jul 17, 2012 7:49 am
Good Inequality Question
by niketdoshi123 »
What is x? 1) |x| <2 2)|x| = 3x-2
5
Last post by imskpwr
Tue Jul 17, 2012 7:18 am
DS - Line concept
by karthikpandian19 »
Please refer attachment (as there was a problem uploading the image)
1
Last post by willrc
Tue Jul 17, 2012 1:19 am
inequalities. Please Help
by AJWILL »
is x/3+3/x>2? 1)x<3 2)x>1
2
Last post by GMATGuruNY
Mon Jul 16, 2012 3:44 am
seems simple, still cant solve
by AJWILL »
if 2^(-2x) + 2^(-x)-6=0. what is x-1/x?
2
Last post by snipfer
Mon Jul 16, 2012 12:14 am
DS - Lines
by karthikpandian19 »
6
Last post by karthikpandian19
Sun Jul 15, 2012 9:42 pm
HELP
by AJWILL »
if a*b*c= 60, where a,b and c are integers greater than 1, a+b+c=?...
3
Last post by Brent@GMATPrepNow
Sun Jul 15, 2012 4:09 pm
clueless
by AJWILL »
for the function y= ax^2 + bx +c. is b=0? 1)f(1)=f(-1)=0...
1
Last post by eagleeye
Sun Jul 15, 2012 3:37 pm
need help on quadrilateral
by AJWILL »
If the diagnals of a quadrilateral have the same length, is it a...
2
Last post by AJWILL
Sun Jul 15, 2012 1:23 pm
Qudratic Equations
by mmeital »
Hi, This post is intended specifically for Manhattan GMAT...
3
Last post by tutorphd
Sun Jul 15, 2012 11:50 am