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Data Sufficiency

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Standard deviation DS:
by \'manpreet singh »
Given that the mean of Set A is 10, what is the range of two standard...
2
Last post by Mike@Magoosh
Tue Aug 27, 2013 4:57 pm
Integer Positive
by vinay1983 »
If n is a positive integer, what is the tens digit of n? 1. The...
2
Last post by [email protected]
Tue Aug 27, 2013 11:47 am
If x, y and z are integers
by melguy »
Hello All I am just confused with a property. When adding and...
1
Last post by Brent@GMATPrepNow
Tue Aug 27, 2013 9:34 am
Factor
by vinay1983 »
What are the different ways to solve such problems?
2
Last post by Brent@GMATPrepNow
Tue Aug 27, 2013 8:32 am
Peder currently works 40 hours a week
by guerrero »
Peder currently works 40 hours a week. If his hourly wage went up by...
1
Last post by Brent@GMATPrepNow
Tue Aug 27, 2013 7:10 am
Digits
by vinay1983 »
If x,y and z are three digit positive integers and if x=y+z, is the...
1
Last post by Brent@GMATPrepNow
Tue Aug 27, 2013 6:36 am
nice ds question
by rishianand7 »
Car X leaves Town A at 2 p.m. and drives toward Town B at a constant...
1
Last post by GMATGuruNY
Tue Aug 27, 2013 4:19 am
If z is a multiple of 9 and w is a multiple
by guerrero »
If z is a multiple of 9 and w is a multiple of 4, is zw a multiple of...
1
Last post by [email protected]
Mon Aug 26, 2013 11:51 pm
Is the product st negative?
by gmattesttaker2 »
Hello, Can you please help with the following question? OA: C My...
3
Last post by [email protected]
Sun Aug 25, 2013 12:54 pm
All students take either band or a language
by melguy »
Please help me with the problem . Thanks Statement 1: 1/3 = Spanish...
3
Last post by melguy
Sun Aug 25, 2013 6:03 am
Data Sufficiency....The Sequence
by mbamaverick »
The sequence s1, s2, s3,.....sn,...is such that Sn= (1/n) - (1/(n+1))...
8
Last post by GMATGuruNY
Sat Aug 24, 2013 7:28 pm
Please explain how to draw the graph based on the infomation
by [email protected] »
If the vertices of a triangle have coordinates (x,1), (5,1), and...
12
Last post by Brent@GMATPrepNow
Sat Aug 24, 2013 2:58 pm
There are 30 managerial positions
by FernandaFranca »
There are 30 managerial positions in company C, 60 percent of which...
2
Last post by PlinioPaolinelli
Sat Aug 24, 2013 10:00 am
Interception of lines question
by psm12se »
Lines a and b have different y-intercepts. When line a is reflected...
2
Last post by psm12se
Sat Aug 24, 2013 7:06 am
help me with this question
by sana.noor »
In rectangular coordinate system, a straight line has a point (c,d)...
5
Last post by [email protected]
Sat Aug 24, 2013 12:29 am
Modulus
by Deepthi Subbu »
If |x| = |2y| , what is the value of x - 2y? (1) x + 2y = 6...
2
Last post by GMATGuruNY
Fri Aug 23, 2013 11:42 am
please explain this question
by sana.noor »
In the xy-plane region R consists of all the points (x,y) such that...
3
Last post by [email protected]
Fri Aug 23, 2013 10:19 am
Value of X
by vinay1983 »
What is the value of X, given X is a positive number? 1. X^3 is a 2...
4
Last post by GMATGuruNY
Fri Aug 23, 2013 10:17 am
Sum of positive integers x and y is 72
by rd85 »
Sum of positive integers x and y is 72. What is xy? a. x = y + 1 b. x...
8
Last post by Uddip
Fri Aug 23, 2013 9:35 am
Prime number
by vinay1983 »
If X is a positive integer, is X!+(x+1) a prime number? 1. X is less...
4
Last post by Brent@GMATPrepNow
Fri Aug 23, 2013 6:42 am
Is z even?
by vinay1983 »
Is Z an even number? 1. 5z is an even number 2. 3z is an even number...
2
Last post by vinay1983
Fri Aug 23, 2013 6:04 am
Triangle
by vinay1983 »
Is the area of a right angled triangle >25 sq.ft? 1. One of the...
1
Last post by Brent@GMATPrepNow
Fri Aug 23, 2013 5:13 am
Leaders, Directors and Fundrasiers
by faraz_jeddah »
A nonprofit group organizes its local fundraisers in teams, with each...
8
Last post by faraz_jeddah
Fri Aug 23, 2013 3:48 am
third-place finisher:
by \'manpreet singh »
The third-place finisher of the Allen County hot dog eating contest,...
2
Last post by GMATGuruNY
Fri Aug 23, 2013 2:48 am
profits:
by \'manpreet singh »
In 1994, Company X recorded profits that were 10% greater than in...
2
Last post by GMATGuruNY
Fri Aug 23, 2013 2:28 am
DS-1
by \'manpreet singh »
Is a/b< 0? (1) a2/b3> 0 (2) ab4 < 0 ans c
1
Last post by [email protected]
Fri Aug 23, 2013 12:14 am
help
by sana.noor »
In the xy-plane, points A, B and C are not on the same line. Is the...
4
Last post by sana.noor
Thu Aug 22, 2013 8:57 pm
Help!--DS
by vinay1983 »
I have this difficulty of solving DS problems.I can somehow do PS,but...
4
Last post by vinay1983
Thu Aug 22, 2013 6:44 pm
1030 grains of Sand
by faraz_jeddah »
If there are 1030 grains of sand on Playa de Sonrisa, how many of...
4
Last post by tarik
Thu Aug 22, 2013 9:33 am
DS Question
by vinay1983 »
If N is a positive, three-digit integer, what is the hundreds digit...
2
Last post by Brent@GMATPrepNow
Thu Aug 22, 2013 6:30 am
DS Question
by vinay1983 »
In the xy-plane, at what two points does the graph y=(x+a)(x+b)...
1
Last post by Brent@GMATPrepNow
Thu Aug 22, 2013 5:48 am
Need Help..Confused concepts
by dddanny2006 »
If d is a positive integer,is sqrt of d an integer? 1.Sqrt of 9d is...
3
Last post by [email protected]
Wed Aug 21, 2013 12:29 pm
Numbers .. similar the GMTPrep Q
by Yaj »
Hi Guys, Need some help with this one: What is the remainder when...
4
Last post by ganeshrkamath
Wed Aug 21, 2013 9:39 am
ds number property
by [email protected] »
How would you approach this question in the most time efficient...
2
Last post by Brent@GMATPrepNow
Wed Aug 21, 2013 9:16 am
Coordinate Geometry .. If line L passes through point (3, n)
by Yaj »
If line L passes through point (3, n) and (n, 3), where n is not...
2
Last post by Brent@GMATPrepNow
Wed Aug 21, 2013 7:58 am
Coordinate Geometry .. If line L passes through points
by Yaj »
If line L passes through points (r,-s) and (t,u), is the slope of the...
1
Last post by GMATGuruNY
Wed Aug 21, 2013 2:56 am
Tough DS question
by rishianand7 »
Is the square root of the positive integer X an integer? (1) The sum...
5
Last post by faraz_jeddah
Wed Aug 21, 2013 1:16 am
Unable to solve this ds question
by Mayank Choudhary »
Is z an even Number? 1. 3z is even 2. 5z is even
4
Last post by GMATGuruNY
Mon Aug 19, 2013 6:46 pm
A certain research group plans to create computer models...
by gmattesttaker2 »
Hello, Can you please assist with this question? This is from MGMAT....
6
Last post by gmattesttaker2
Mon Aug 19, 2013 3:52 pm
Dear People,,Need some help..Confused!!!
by dddanny2006 »
If x is an integer with n distinct prime factors,is n greater than or...
3
Last post by [email protected]
Mon Aug 19, 2013 12:44 pm
In a chain of 40 restaurants
by melguy »
Hello All I tried this problem and the values in Statement 1 seem to...
3
Last post by Brent@GMATPrepNow
Mon Aug 19, 2013 6:37 am
What is the measure of angle BAD?
by melguy »
Hello It is an easy Q but I am a bit confused with the bisect concept...
3
Last post by Brent@GMATPrepNow
Mon Aug 19, 2013 6:08 am
DS Question (For all inquisitive minds)
by mketron »
Ok, so I came across this official question and am very surprised by...
3
Last post by [email protected]
Sun Aug 18, 2013 12:58 pm
Numbers Properties
by Java_85 »
If x,y and z are integers and xy+z is an odd number, is x an even...
5
Last post by GMATGuruNY
Sun Aug 18, 2013 12:26 pm
DS Question
by nipunranjan »
1
Last post by Java_85
Sun Aug 18, 2013 12:25 pm
It takes Amy between 6 and 7 minutes to grill a steak ...
by gmattesttaker2 »
Hello, Can you please assist with this? This is from MGMAT: It takes...
2
Last post by GMATGuruNY
Sun Aug 18, 2013 4:07 am
Finding this hard to Understand--Please help!!!
by dddanny2006 »
A souvenir shop made $2,400 in revenue selling Large and small...
4
Last post by lunarpower
Sat Aug 17, 2013 5:19 am
Data Sufficiency
by vinay1983 »
I need a simple way of solving this problem. Mary and Nancy can each...
1
Last post by GMATGuruNY
Sat Aug 17, 2013 4:37 am
OG Quant Review PS: Q31
by ProGMAT »
OG Quant Review PS: Q31: If x is a positive integer, is sq.rt. X an...
5
Last post by Brent@GMATPrepNow
Fri Aug 16, 2013 9:10 pm
Help required - 13 consecutive integers
by ganeshrkamath »
In a sequence of 13 consecutive integers, all of which are less than...
6
Last post by macattack
Thu Aug 15, 2013 10:16 pm