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then (x+1/x)^2 - (x-1/x)^2 =
by alex.gellatly »
If x does not equal 0, then (x+1/x)^2 - (x-1/x)^2 = 1/x x 1 2 4
5
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Last post by alex.gellatly
Sat Jul 28, 2012 10:52 pm
GMAT Prep 198 #93
by Megs17 »
93) Each stack is designated with a 1, 2, and 3 letter code where...
3
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Last post by nailGmat2012
Sat Jul 28, 2012 4:56 pm
Lead in a race
by kartikshah »
In a 100m race, Sam beats John by 4 seconds. On the contrary, if Sam...
4
Last post by eagleeye
Sat Jul 28, 2012 11:17 am
Percentage problem.
by Chinn_asama »
If the price of an item is reduced by 25%, a person can buy 2 more...
2
Last post by truplayer256
Sat Jul 28, 2012 9:35 am
Triangles with positive area
by Phoenixvikas »
How many triangles with positive area can be drawn on the coordinate...
2
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Last post by Brent@GMATPrepNow
Sat Jul 28, 2012 4:09 am
Percentag Problems
by GMAT-Zenith »
A furniture dealer purchased a desk for $150 and then set the selling...
8
Last post by GMATGuruNY
Sat Jul 28, 2012 3:32 am
Inequality with Modulus
by kartikshah »
What range of values of x will satisfy the inequality |2x + 3| >...
5
Last post by GMATGuruNY
Fri Jul 27, 2012 9:02 pm
Class of Students
by kartikshah »
In a class of 50 students, 10 did not opt for math. 15 did not opt of...
3
Last post by tutorphd
Fri Jul 27, 2012 8:34 pm
Work/Time
by kartikshah »
If Dave works alone he will take 20 more hours to complete a task...
5
Last post by GMATGuruNY
Fri Jul 27, 2012 8:28 pm
Radius of Circle
by kartikshah »
What is the radius of the circle that circumscribes the triangle,...
3
Last post by tutorphd
Fri Jul 27, 2012 7:36 pm
How many positive integers between 200 and 300 (both inclusi
by kartikshah »
How many positive integers between 200 and 300 (both inclusive) are...
3
Last post by tutorphd
Fri Jul 27, 2012 6:36 pm
Probability
by kartikshah »
What is the probability that a 3-digit positive integer picked at...
4
Last post by kartikshah
Fri Jul 27, 2012 6:32 pm
3 digit integers
by kartikshah »
What is the sum of all 3 digit positive integers that can be formed...
2
Last post by kartikshah
Fri Jul 27, 2012 6:14 pm
Number Properties
by Aman verma »
Q: The average of a set of whole numbers is 27.2. When 20% of the...
7
Last post by kartikshah
Fri Jul 27, 2012 5:10 pm
Exponents of prime p in n!
by kartikshah »
Question 01 The exponent of 7 in 100C50 is: (a) 0 (b) 2 (c) 4 (d) 6...
3
Last post by kartikshah
Fri Jul 27, 2012 4:51 pm
Weighted Averages
by kartikshah »
Here's a question from VeritasPrep that I got wrong: How many hours...
3
Last post by GMATGuruNY
Fri Jul 27, 2012 2:38 am
Simple and compound interest
by Huyen Le »
Hi, I have this question about interest and I think simple interest =...
5
Last post by Huyen Le
Thu Jul 26, 2012 7:52 pm
Vinegar solution
by das.ashmita »
Hi I am quite week in Mixture problems. I got this question from...
3
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Last post by NicoleWhite
Thu Jul 26, 2012 7:59 am
Geometry
by shrey2287 »
In triangle ABC, AD is the bisector of |A, AB=10 cm, AC=14 cm and...
3
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Last post by GMATGuruNY
Thu Jul 26, 2012 6:43 am
Rectangular park
by alex.gellatly »
A small, rectangular park has a perimeter of 560 feet and a diagonal...
6
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Last post by armand_h
Thu Jul 26, 2012 1:21 am
Geometry
by phoenix9801 »
Can anyone help me with this problem please. The Original Question is...
8
Last post by armand_h
Thu Jul 26, 2012 12:08 am
table
by grandh01 »
Shipment # of defective ships #total number of chips in shipment S1 2...
3
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Last post by Anurag@Gurome
Wed Jul 25, 2012 9:50 pm
Triangles
by phoenix9801 »
Can someone help me on this problem please. I do not understand why...
5
Last post by theCEO
Wed Jul 25, 2012 2:22 pm
Probabilty
by CSASHISHPANDAY »
n a certain game, a player begins with a bag containing tiles...
1
Last post by NicoleWhite
Wed Jul 25, 2012 1:19 pm
sports league
by CSASHISHPANDAY »
A certain sports league has ten teams in its Western Conference and...
3
Last post by GMATGuruNY
Wed Jul 25, 2012 10:28 am
Counting integers
by ReenaMo »
Of the three-digit integers that are greater than 700, how many have...
10
Last post by armand_h
Wed Jul 25, 2012 9:11 am
math
by dillip.hindcon »
PROBLEM SEND ME
3
Last post by eagleeye
Wed Jul 25, 2012 6:45 am
Consecutive Integer
by xgr3x »
Are below consecutive integers correct? n, n+4, n+8 -> 8, 12, 16...
2
Last post by xgr3x
Tue Jul 24, 2012 7:30 pm
PS - Probability - 4 - color socks
by karthikpandian19 »
A drawer contains two red socks, two white socks, and two black...
2
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Last post by Brent@GMATPrepNow
Tue Jul 24, 2012 8:00 am
First time member of Beatthe GMAT site. very excited !
by GAspire2013 »
Hi, To be honest, I am a starter in preparing GMAT. I have close to...
1
Last post by tisrar02
Mon Jul 23, 2012 6:27 pm
Herd of Goats
by kartikshah »
A herd of goats consists of A males and B females. In that herd, half...
4
Last post by tisrar02
Mon Jul 23, 2012 6:23 pm
gmat prep questions
by swativerma1103 »
if xis not equal to 0, then sqrt(x^2)/x is equal to a) -1 b) 0 c) 1...
2
Last post by tisrar02
Mon Jul 23, 2012 6:08 pm
Tiger Gongs
by kartikshah »
In an ensemble of gongs, all gongs have a diameter of either ten...
4
Last post by GMATGuruNY
Mon Jul 23, 2012 12:41 pm
Sedan Holiday
by kartikshah »
A family consisting of one mother, one father, two daughters and a...
2
Last post by kartikshah
Mon Jul 23, 2012 8:20 am
Coordinate Plane Strategy
by phoenix9801 »
Hello, I have a quick question. Please refer to the Image below....
2
Last post by niketdoshi123
Mon Jul 23, 2012 1:22 am
Algebra Problem
by phoenix9801 »
Please explain how to solve this problem step by step instruction. I...
1
Last post by Birottam Dutta
Mon Jul 23, 2012 12:16 am
PS - Mixture
by karthikpandian19 »
Mixture 1 contains 55% chemical A by volume, 23% chemical B by...
9
Last post by karthikpandian19
Sun Jul 22, 2012 10:01 pm
exponents
by sndubose85 »
i need help with this problem. 5^21 x 4^11 = 2x10^n, what is n? how...
1
Last post by eagleeye
Sun Jul 22, 2012 6:40 pm
Adam Family
by kartikshah »
In the Adams family there are 7 boys. Each boy is twice as heavy as...
3
Last post by GMATGuruNY
Sun Jul 22, 2012 3:06 pm
Exponents problem
by gmattesttaker2 »
Hello, The following is from MGMAT Algebra Strategy Guide. (5th...
4
Last post by gmattesttaker2
Sun Jul 22, 2012 11:31 am
Ratios problem
by gmattesttaker2 »
Hello, This is taken from MGMAT Strategy Guide 1 (5th edition). P....
4
Last post by gmattesttaker2
Sun Jul 22, 2012 10:41 am
arithmetic problem
by topspin360 »
Is xy≤1/2? (1) x^2+y^2=1 (2) x^2−y^2=0 Statement (1)...
8
Last post by topspin360
Sun Jul 22, 2012 9:22 am
Ayayai, iMe, iMine et al
by kartikshah »
Ayayai electronics is a company manufacturing MP3 players. Ayayai...
2
Last post by eagleeye
Sun Jul 22, 2012 7:07 am
Question regarding Geometry - Volumes
by thegmatexperience »
Good morning, I have a problem with understanding the following...
2
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Last post by thegmatexperience
Sun Jul 22, 2012 2:12 am
Geometry problems:
by \'manpreet singh »
Q.1 If a and b are complementary angles (they sum to 90°), name...
1
Last post by Stuart@KaplanGMAT
Sun Jul 22, 2012 1:18 am
PandC
by confuse mind »
There are 6 boxes numbered 1, 2 ...6. Each box is to be filled up...
1
Last post by eagleeye
Sat Jul 21, 2012 9:57 pm
divisibility...
by topspin360 »
I used to break down these type of problems through prime...
4
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Last post by Anurag@Gurome
Sat Jul 21, 2012 9:20 pm
question
by confuse mind »
27. A lady grows cabbages in her garden that is in the shape of a...
3
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Last post by theCEO
Sat Jul 21, 2012 9:09 pm
Count of numbers
by confuse mind »
How many different positive integers exist between 106 and 107, the...
2
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Last post by Anurag@Gurome
Sat Jul 21, 2012 8:44 pm
P and C
by confuse mind »
What is the probability that the relative position in which the...
2
Last post by eagleeye
Sat Jul 21, 2012 8:34 pm