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Permutation or Combination or Neither
by sal_xcool »
If the Board of Selectmen contains 4 positions, and if in the current...
4
Last post by Stuart@KaplanGMAT
Fri Feb 25, 2011 8:15 pm
Work Problem - Logic or work formula
by sal_xcool »
If 5 machines can do 3 jobs in 7 hours, how long will it take 2...
5
EXPERT REPLIES
Last post by Anurag@Gurome
Thu Feb 24, 2011 10:08 pm
length of one side
by sanju09 »
If the area of an equilateral triangle is x square meters and the...
2
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Last post by allfta
Thu Feb 24, 2011 8:52 pm
standard deviation princeton manal
by alltimeacheiver »
If the mean on this exam is 530, and the standard deviation (sd) is...
6
EXPERT REPLIES
Last post by Stuart@KaplanGMAT
Thu Feb 24, 2011 1:05 pm
Valid Squre root in Knewton practice problem
by bkw »
Hi, I have experience this in one of Knewton's practice problems...
5
Last post by mk101
Thu Feb 24, 2011 5:41 am
sum of the digits equals 5
by sanju09 »
How many positive integers less than 10,000 are there in which the...
2
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Last post by anshumishra
Thu Feb 24, 2011 5:15 am
Factor simple problem
by alltimeacheiver »
If 65x = 32 Ã- 52 Ã- 13, which of the following is not a factor of...
3
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Last post by Anurag@Gurome
Wed Feb 23, 2011 11:41 pm
1-100 numbered balls... Probability
by ithamarsorek »
2
Last post by Night reader
Wed Feb 23, 2011 2:03 pm
OG diagnostic Problem 11
by khedward »
Of the three-digit integers greater than 700, how many have two...
2
Last post by Night reader
Wed Feb 23, 2011 11:53 am
Set Prob again
by garuhape »
I hate these set questions... In a group of 68 students, each student...
2
Last post by garuhape
Wed Feb 23, 2011 7:37 am
MGMAT Fractions,Decimals&Percents (VARIABLES) (5 Questio
by beyondenim1 »
These are the questions which I am unable to understand (involving...
3
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Last post by hja379
Wed Feb 23, 2011 6:41 am
Liters added to solution ---chart possible?
by Goldfinger2001 »
How many liters of pure alcohol must be added toa 100 liter solution...
5
Last post by GMATGuruNY
Wed Feb 23, 2011 6:22 am
Sets
by yellowho »
How are people keeping track of info. in this problem?
1
EXPERT REPLIES
Last post by Anurag@Gurome
Tue Feb 22, 2011 9:43 pm
Permutations Formula
by krishna kumar »
Hi All, Can someone please help with a formula . How to find the...
1
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Last post by Anurag@Gurome
Tue Feb 22, 2011 8:56 pm
Combo
by yellowho »
A man chooses an outfit from 3 different shirts, 2 different pair of...
2
EXPERT REPLIES
Last post by Anurag@Gurome
Tue Feb 22, 2011 8:54 pm
Algebra DS problem from BTG Practice Questions
by Kevdog2834 »
If 3w + 2y = x, then what is the value of y? (1) 6w + 6 = 2x (2) 9w =...
2
EXPERT REPLIES
Last post by Anurag@Gurome
Tue Feb 22, 2011 8:26 pm
Fractions problem from OG 2nd Ed. Q42
by quaktar0004 »
42. If x>3000, then the value of x/2x + 1 is closest to A. 1/6 B....
2
Last post by Night reader
Tue Feb 22, 2011 5:44 pm
Square Root
by ankur.agrawal »
What is square root of 0.5 ? Generalizing: How do we take square root...
2
Last post by ankur.agrawal
Tue Feb 22, 2011 8:47 am
Probability question
by neilcao »
Two independent events, the probability of any of them to occur is P,...
1
Last post by GMATGuruNY
Tue Feb 22, 2011 7:09 am
fraction and exponent question
by Frances87 »
Sorry if this question has already been posted before, but it came up...
5
Last post by Frances87
Tue Feb 22, 2011 3:27 am
Integer / Not-Equation
by yellowho »
X/Y is not integer, can you re-write this as X is not equal to...
2
Last post by yellowho
Tue Feb 22, 2011 2:55 am
Veritas Aritmetic Q
by Goldfinger2001 »
x is the product of all even numbers from 2 to 50, inclusive. The...
3
Last post by Goldfinger2001
Tue Feb 22, 2011 1:52 am
KN1: Equation
by yellowho »
Is there a way to do this without testing?
2
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Last post by kevincanspain
Tue Feb 22, 2011 12:01 am
2-digit number - reverse 2-digit number = Multiple of 9
by XLogic »
Hello, I actually stumbled across this fact when working with some...
1
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Last post by Anurag@Gurome
Mon Feb 21, 2011 8:35 pm
Bank interest rate questions
by neilcao »
2% compound interest�'no money put in and out in 10...
3
EXPERT REPLIES
Last post by Anurag@Gurome
Mon Feb 21, 2011 8:31 pm
A number is the product of x numbers,
by neilcao »
a number is the product of x numbers, when the number's last 6 digits...
3
EXPERT REPLIES
Last post by Anurag@Gurome
Mon Feb 21, 2011 7:10 pm
If x < 0 and 0 < y < 1, which of the following has
by mitzwillrockgmat »
If x < 0 and 0 < y < 1, which of the following has the...
6
Last post by artistocrat
Mon Feb 21, 2011 1:04 pm
Fraction w/no absolute numbers
by Zanardi »
I am currently stuck on this single problem: In one classroom exactly...
5
Last post by Zanardi
Mon Feb 21, 2011 12:56 pm
Manhattan GMAT Challenge Problem - July 3, 2006
by Kevin »
Most Manhattan GMAT students are trying to break the 700 barrier. As...
12
Last post by anu009
Mon Feb 21, 2011 12:39 pm
GMAT Prep Q - Population
by tito1545 »
A certain city with a population of 132,000 is to be divided into 11...
4
EXPERT REPLIES
Last post by tito1545
Mon Feb 21, 2011 12:20 pm
Number properties
by ankur.agrawal »
What is the tenth digit to the right of the decimal point, in the...
2
Last post by fskilnik@GMATH
Mon Feb 21, 2011 11:50 am
Difficult?
by JDesai01 »
If s and t are positive integers such that s/t = 64.12, which of the...
10
EXPERT REPLIES
Last post by John Faber
Mon Feb 21, 2011 9:14 am
problem 80 drinks given to a group of people
by neilcao »
80 bottles of drink are given to a group of people, the remaining...
3
Last post by Night reader
Mon Feb 21, 2011 7:37 am
population
by gmatmachoman »
A certain culture of bacteria quadruples every hour. If a container...
2
Last post by GMATGuruNY
Mon Feb 21, 2011 7:14 am
how do you solve this kind of questions between 100-999....
by neilcao »
between 100-999, how many number can be divided by 2, or multiples of...
3
EXPERT REPLIES
Last post by mk101
Mon Feb 21, 2011 6:44 am
Last digit of (27145)* (10^11-10^10)/10^13
by neilcao »
(27145)* (10^11-10^10)/10^13 what's the last digit of the result? I...
1
Last post by Night reader
Mon Feb 21, 2011 6:32 am
If abc = b3 , which of the following must be true?
by nikhilsrl »
If abc = b3 , which of the following must be true? I. ac = b2 II. b =...
4
Last post by GMATGuruNY
Mon Feb 21, 2011 6:08 am
perfectly inscribed
by sanju09 »
Circle A is perfectly inscribed in a square, and the square is...
8
Last post by rohu27
Mon Feb 21, 2011 3:52 am
R^W is a factor of 34
by sanju09 »
Set A consists of integers -9, 8, 3, 10, and J; Set B consists of...
2
Last post by Night reader
Mon Feb 21, 2011 3:20 am
factor of 12!11! + 11!10!
by sanju09 »
What is the greatest prime factor of 12!11! + 11!10!? {A) 7 (B) 11...
9
Last post by Night reader
Mon Feb 21, 2011 3:04 am
(3^x) (4^y) (5^z) = 3,276,800,000
by sanju09 »
For integers x, y, and z, if (3^x) (4^y) (5^z) = 3,276,800,000 and x...
4
Last post by rohu27
Mon Feb 21, 2011 1:27 am
macadamia nuts, priced at $6.00
by sanju09 »
If eight pounds of macadamia nuts, priced at $6.00 per pound, are...
1
Last post by manpsingh87
Sun Feb 20, 2011 11:36 pm
3^n is a factor of 18^15
by sanju09 »
What is the greatest value of a positive integer n such that 3^n is a...
1
Last post by manpsingh87
Sun Feb 20, 2011 11:33 pm
PRIME FACTOR
by earnest10 »
2
Last post by mk101
Sun Feb 20, 2011 11:26 pm
an empty cylindrical tank
by sanju09 »
How many complete tanks of water, each with a capacity of 3 cubic...
1
EXPERT REPLIES
Last post by Anurag@Gurome
Sun Feb 20, 2011 11:26 pm
a certain parallelogram
by sanju09 »
In a certain parallelogram, the degree measure of one interior angle...
1
Last post by manpsingh87
Sun Feb 20, 2011 11:26 pm
GMAT Perp Questions
by raj.gmat.2011 »
Can someone please provide explanations for below questions? 1. For...
8
EXPERT REPLIES
Last post by sanju09
Sun Feb 20, 2011 11:02 pm
KC 1 Q30: Prime Fact / Combo
by yellowho »
How do you do this using combination? Possible or do you have to just...
5
Last post by gmatmachoman
Sun Feb 20, 2011 9:00 pm
GMAT Prep Q - P&C
by tito1545 »
A step by step approach for this please : A certain office supply...
4
Last post by tito1545
Sun Feb 20, 2011 2:16 pm
Arithmetic:Ratio - What is number of dots ?
by eccentric »
A diagram has exactly two black dots and one green dot for every two...
3
Last post by Night reader
Sun Feb 20, 2011 11:50 am