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Data Sufficiency

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Arithmetic mean
by metallicafan »
If the average (arithmetic mean) of 4 different numbers is 30, how...
1
Last post by Brent@GMATPrepNow
Tue Oct 23, 2012 9:00 pm
Number line question (number properties)
by morbius14 »
Hi I encountered this DS problem and not sure if the answer is...
1
Last post by GMATGuruNY
Tue Oct 23, 2012 7:58 pm
Square Root
by Benni »
Hi Guys, regarding OG 13, 157, Data Suffiency. If n is a positive...
4
Last post by Benni
Tue Oct 23, 2012 6:59 am
Reiko's Trip - DS (700-800) MGMAT question
by satish.coolin »
HI, I was stuck with this question in MGMAT CAT. I am not very happy...
6
Last post by anuprajan5
Tue Oct 23, 2012 6:44 am
What is the value of x?
by mbahound »
What is the value of x ? 1. y-x = y-6 2. x + 2y = 10 Sorry if this is...
1
Last post by Brent@GMATPrepNow
Mon Oct 22, 2012 8:51 pm
Problem in Inequalities, divisiblity and primes
by ras-j »
Hi, I face problem in these two areas, Inequalities, divisiblity and...
3
Last post by Brent@GMATPrepNow
Mon Oct 22, 2012 11:49 am
Inequalities: Is A^B > B^A?
by tabsang »
Is A^B > B^A? (1) A^A > A^B (2) B^A > B^B IMO: E Please let...
2
Last post by tabsang
Sun Oct 21, 2012 7:15 am
Data Sufficiency
by anand108 »
This is a topic that I have consistently struggled with. Just can't...
1
Last post by Brent@GMATPrepNow
Sun Oct 21, 2012 5:58 am
Speed, Distance.
by Aishwarya1204 »
How long did it take Betty to drive nonstop on a trip from her home...
3
Last post by Brent@GMATPrepNow
Sat Oct 20, 2012 6:49 am
The profit from sale
by TheAnuja55 »
The profit from the sale of a certain appliance increases, though not...
3
Last post by ihatemaths
Sat Oct 20, 2012 12:11 am
OG13 Question #41 on page 278
by tobiasaebi »
Hi all, I was solving question #41 of the OG13 and don't understand...
4
Last post by TheAnuja55
Fri Oct 19, 2012 8:03 pm
Number properties.
by Aishwarya1204 »
Are all the numbers in a certain list of 15 numbers equal? 1) The sum...
2
Last post by Brent@GMATPrepNow
Fri Oct 19, 2012 7:17 am
OG problem.
by Aishwarya1204 »
At a certain picnic, each of the the guests was served either a...
1
Last post by Anurag@Gurome
Fri Oct 19, 2012 5:22 am
Reminders PRoblem
by ashg84 »
Seven different numbers are selected from the integers 1 to 100, and...
2
Last post by ashg84
Fri Oct 19, 2012 12:58 am
Coordinate Geometry - 2
by shivanigs »
Hi, Request help with the following question.Thanks.. Is (-1,-1) a...
2
Last post by ashg84
Thu Oct 18, 2012 11:01 pm
Factors
by Mjkourtis »
If a,b,k, and m are positive integers, is a to the kth power a factor...
1
Last post by Anurag@Gurome
Thu Oct 18, 2012 7:19 pm
Probability
by rapper »
Q3: If each of the students in a certain mathematics class is either...
1
Last post by Anurag@Gurome
Thu Oct 18, 2012 6:02 pm
Coordinate geometry
by nidhis.1408 »
In which quadrant of the coordinate plane does the point (x, y) lie?...
1
Last post by Anurag@Gurome
Thu Oct 18, 2012 5:48 pm
Number Properties - m, n
by hulahooporiginal »
If m and n are nonzero integers, is m^n an integer? 1. n^m is...
9
Last post by hulahooporiginal
Thu Oct 18, 2012 3:04 pm
Median problem
by mgmt_gmat »
k, n, 12, 6, 17 What is the value of n in the list above? (1) k <...
2
Last post by ashish.moudghil
Thu Oct 18, 2012 12:55 am
Divisibility and LCM
by metallicafan »
Is the integer x divisible by 24? (1) x is divisible by 8. (2) x is...
1
Last post by Whitney Garner
Wed Oct 17, 2012 11:45 am
Is |xy| > x^2y^2 ?
by massi2884 »
Is |xy| > x^2y^2 ? 1) 0<x^2>1/4 2) 0<y^2<1/9 OA C
3
Last post by Whitney Garner
Wed Oct 17, 2012 10:14 am
Divisibility
by Mjkourtis »
Is integer x divisible by 6? (1) (x+3)/3 is an integer. (2) x+3 is...
2
Last post by Brent@GMATPrepNow
Wed Oct 17, 2012 5:12 am
Manhattan
by das.ashmita »
If a and n are integers and n > 1, is n odd? (1) a^(n-1)...
1
Last post by anuprajan5
Wed Oct 17, 2012 1:13 am
Manhattan
by das.ashmita »
If a and b are positive integers such that a < b, is b even? (1)...
3
Last post by Brent@GMATPrepNow
Tue Oct 16, 2012 6:48 am
What does range... inclusive mean ?
by nobazinga »
In given problem, I am a bit confused. What does it mean by The range...
1
Last post by vikram4689
Mon Oct 15, 2012 9:44 pm
Is x > 0?
by PGMAT »
Is x > 0? (1) |x + 3| = 4x - 3 (2) |x - 3| = |2x...
7
Last post by vikram4689
Mon Oct 15, 2012 9:37 pm
Geometry DS- GMATPrep
by anks17 »
Experts, Can you please confirm the best way to approach this...
8
Last post by anuprajan5
Mon Oct 15, 2012 9:21 am
Quant Review DS 107
by Cabritilla »
I was just working my way through the DS questions in the 2nd Edition...
1
Last post by GMATGuruNY
Mon Oct 15, 2012 4:05 am
DS
by TheAnuja55 »
For which type of investment, J or K, is the annual rate of return...
4
Last post by gschaefer
Sun Oct 14, 2012 9:55 pm
Average Problem
by Mjkourtis »
Each employee on a task force is either a manager or a director. What...
2
Last post by GMATGuruNY
Sun Oct 14, 2012 8:06 pm
Sets Problem
by Mjkourtis »
At least 100 students at a high school study Japanese. If 4% of the...
1
Last post by Anurag@Gurome
Sun Oct 14, 2012 6:55 pm
3y=4x
by humpback »
if x=5 in the equation 3y=4x, y is how much greater then x
1
Last post by Whitney Garner
Sun Oct 14, 2012 6:06 pm
Data Sufficient - absolute number
by Castor.kim »
Is |x| = |y| ? (1) x - y = 6 (2) x + y = 0 let the given question to...
4
Last post by Whitney Garner
Sun Oct 14, 2012 4:55 pm
Wrong answer explanation?
by gander123 »
Hi there I'm back with the following question: GMAT Prep. Question...
4
Last post by Brent@GMATPrepNow
Sun Oct 14, 2012 10:32 am
DS - Probability
by rami26 »
Alan is a bartender, and someone has removed all the labels from the...
1
Last post by rami26
Sun Oct 14, 2012 3:50 am
Manhattan
by das.ashmita »
Each of the following equations has at least one solution EXCEPT...
2
Last post by Anurag@Gurome
Sat Oct 13, 2012 9:33 pm
GMATPrep 1- Digits
by Mjkourtis »
What is the hundredths digit of decimal z? (1) the tenths digit of...
2
Last post by Anurag@Gurome
Sat Oct 13, 2012 9:31 pm
Manhattan
by das.ashmita »
In the rectangular coordinate system, are the points (a, b) and (c,...
2
Last post by Anurag@Gurome
Sat Oct 13, 2012 9:25 pm
Difficult Problem
by ashg84 »
For each landscaping job that takes more than 4 hours, a certain...
1
Last post by Anurag@Gurome
Sat Oct 13, 2012 9:14 pm
Geometry
by ashg84 »
1. Is the measure of the interior angles of quadrilateral ABCD equal...
2
Last post by Anurag@Gurome
Sat Oct 13, 2012 9:11 pm
Second-degree equation - brief explanation
by gander123 »
Hey folks, I've just reviewed Q62 (Data Sufficiency) from the Quant....
2
Last post by gander123
Sat Oct 13, 2012 3:16 am
Basic DS Is z even?
by venmic »
Is z even? (1) 5z is even. (2) 3z is even. Ans C I know this is a...
9
Last post by Brent@GMATPrepNow
Fri Oct 12, 2012 7:12 am
DS quantative of measures
by Castor.kim »
Dear GMAT volunteers, This problem looks simple, but solve this...
2
Last post by Castor.kim
Fri Oct 12, 2012 5:34 am
GMAT Prep?? (Ratios)
by dferm »
At a certain company, the average (arithmetic mean) number of years...
6
Last post by divineacclivity
Thu Oct 11, 2012 9:25 pm
OG 12 | VICs
by [email protected] »
For any integers x and y, min(x, y) and max(x, y) denote the minimum...
3
Last post by Anurag@Gurome
Thu Oct 11, 2012 5:06 am
is the range of the numbers in S greater that 2?
by Mom4MBA »
This question is from OG If S is a set of four numbers w,x,y,z, is...
10
Last post by anuprajan5
Wed Oct 10, 2012 9:48 pm
please help
by sana.noor »
1) What is the value of xy? a) y= x+1 b) y= x^2 +1 2) What is the...
2
Last post by anuprajan5
Wed Oct 10, 2012 6:33 am
XY Coordinate
by relaxin99 »
In the xy coordinate plane, line L and line K intersect at point (4,...
10
Last post by venmic
Tue Oct 09, 2012 1:08 pm
set of different flowers - probability
by kunalkulkarni »
A florist has 2 azaleas, 3 buttercups, and 4 petunias. She puts two...
5
Last post by kunalkulkarni
Tue Oct 09, 2012 11:27 am