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Probablity...Tough One
by knight247 »
A lottery game works as follows: The player draws a numbered ball at...
12
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Last post by Brent@GMATPrepNow
Mon Sep 26, 2011 10:24 am
Equations & Functions
by sparkle6 »
Find the value of 'a' if a(x^3) + 9(x^2) + 4x - 10 when divided by...
6
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Last post by Brent@GMATPrepNow
Mon Sep 26, 2011 9:02 am
Arrangements and Divisibility
by shankar.ashwin »
Different four-digit numbers are formed using the digits 1, 2, 3, 4,...
4
Last post by GMATGuruNY
Mon Sep 26, 2011 8:35 am
Divisibility Problem
by sparkle6 »
If x and y are positive integers, which of the following CANNOT be...
1
Last post by cans
Mon Sep 26, 2011 8:22 am
GMAT Diagnostic Test
by gunjan1208 »
Could somebody help me finding the explanation:-->
2
EXPERT REPLIES
Last post by Anurag@Gurome
Mon Sep 26, 2011 4:51 am
Average Speed
by sparkle6 »
A car runs 5 successive 6 km stretches at speeds of 5 km/hr, 12...
7
Last post by GMATGuruNY
Mon Sep 26, 2011 4:48 am
Probability Question
by seema19 »
Out of 13 applications for a job, there are 5 women and 8 men. It is...
2
Last post by user123321
Mon Sep 26, 2011 4:17 am
Meg finishes ahead of Bob
by sanju09 »
Meg and Bob are among the 5 participants in a cycling race. If each...
3
Last post by navami
Mon Sep 26, 2011 2:18 am
Permuations
by sparkle6 »
Meg and Bob are among the 5 participants in a cycling race. If each...
2
Last post by navami
Mon Sep 26, 2011 2:17 am
Algebra
by shankar.ashwin »
(x - 2)*(x - 4)*(x - 6)*(x - 8)* ... *(x...
3
Last post by itheenigma
Mon Sep 26, 2011 1:59 am
a good remiander Q
by mehrasa »
if a divided by b with remainder 5 and c divided by d with remainder...
4
Last post by shankar.ashwin
Mon Sep 26, 2011 1:03 am
prime no
by mehrasa »
which one can not be prime? 1) 6!-1 2) 6!+21 3) 6!+41 4) 7!-1 5)...
2
Last post by shankar.ashwin
Mon Sep 26, 2011 12:51 am
Sequences
by sparkle6 »
The sum of all 2 digit numbers is? A) 3776 B) 4680 C) 4700 D) 4750 E)...
3
Last post by sparkle6
Sun Sep 25, 2011 10:13 pm
selection
by sunilrawat »
I have a doubt. Suppose we have to select 2 people from a group of 5,...
3
Last post by knight247
Sun Sep 25, 2011 9:24 pm
3 digit No.s
by mehrasa »
how many odd 3-digit Nos can write in which 5 is not in unit digit?...
1
Last post by cans
Sun Sep 25, 2011 9:10 pm
Counting Problem
by knight247 »
If x, y, and z are positive integers, and x + y + z = 9. How many...
5
Last post by user123321
Sun Sep 25, 2011 5:26 pm
GMAT Boost Challenge Question #3
by gmatboost »
Here is a GMAT Boost Challenge Question . On GMAT Boost, I frequently...
5
Last post by varungoel
Sun Sep 25, 2011 4:33 pm
Inequalities
by parasite8 »
Hi, I have a question on inequalities with equations. I tried using a...
4
Last post by parasite8
Sun Sep 25, 2011 1:21 pm
Overlapping sets: towels
by ikaplan »
If 60 percent of the towels available at a certain store retail for...
2
Last post by ikaplan
Sun Sep 25, 2011 9:26 am
Time, Speed, Distance
by sparkle6 »
Walking 5/6 of his usual speed, a man is 10 minutes too late. The...
2
Last post by knight247
Sun Sep 25, 2011 7:35 am
Remainders
by sparkle6 »
How many 3 digit positive integers exist that when divided by 7 leave...
2
Last post by amit2k9
Sun Sep 25, 2011 7:15 am
OG quant probability
by Redhorsep »
Hi, Please help with this problem from OG quant second edition. It...
11
Last post by dhonu121
Sun Sep 25, 2011 6:53 am
Probability
by sparkle6 »
From a group of 3 boys and 3 girls, 4 children are to be randomly...
1
Last post by shankar.ashwin
Sun Sep 25, 2011 6:35 am
Combinations
by sparkle6 »
A certain company assigns employees to offices in such a way that...
1
Last post by shankar.ashwin
Sun Sep 25, 2011 6:32 am
Functions
by sparkle6 »
If f is the function defined for all k such that f(k) = k^5/16, what...
6
Last post by sparkle6
Sun Sep 25, 2011 6:21 am
800 SCORE- 5-21
by mehrasa »
It takes Sarah as long to paddle 10 miles downstream on a river...
6
Last post by mehrasa
Sun Sep 25, 2011 5:39 am
cut into segments
by mehrasa »
A piece of string is marked in segments of one-fourth the lenght of...
3
Last post by GMATGuruNY
Sun Sep 25, 2011 4:27 am
What is X^2??
by HeyArnold »
If x and y are non-zero integers, and 9x^4 - 4y^4 =...
4
EXPERT REPLIES
Last post by Cheese12
Sun Sep 25, 2011 4:26 am
UPSTREAM-DOWNSTREAM
by mehrasa »
In a given river, the current is 6 mph. A certain riverboat can...
3
Last post by GMATGuruNY
Sun Sep 25, 2011 4:12 am
a good one ;)
by mehrasa »
Larry can hoe a garden in 90 minutes and Jim can hoe it in 60...
3
Last post by shankar.ashwin
Sun Sep 25, 2011 4:07 am
Factors
by raamjee »
What is the largest value of NON NEGATIVE INTEGER N for which 10...
6
Last post by mehrasa
Sun Sep 25, 2011 3:57 am
The temp of a cup of coffee.
by Ashetty »
The temp of a certain cup of coffee 10 min after it was poured was...
3
Last post by ntamhane
Sat Sep 24, 2011 10:12 pm
Permutations
by shankar.ashwin »
There are 10 coins numbered from 1 to 10 in a box. In how many ways...
2
Last post by knight247
Sat Sep 24, 2011 12:20 pm
Leap Year Probability
by shankar.ashwin »
How many randomly assembled people are needed to have a better than...
7
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sat Sep 24, 2011 11:40 am
Math help
by chelseablue »
I've finished all the math problems on the OG.And outta 230 in...
0
Last post by chelseablue
Sat Sep 24, 2011 9:03 am
Arrangements
by shankar.ashwin »
A problem similar to what I posted earlier In how many ways can 5...
2
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Last post by Brent@GMATPrepNow
Sat Sep 24, 2011 6:14 am
Circular Permutation
by knight247 »
In how many different ways can you seat 10 women, 10 men, and 10...
15
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sat Sep 24, 2011 5:41 am
Sequence question
by Cheese12 »
In sequence Q, the first number is , and each subsequent number in...
3
Last post by shankar.ashwin
Sat Sep 24, 2011 5:20 am
apluggin in
by Cheese12 »
A salesman sells two equally priced brands of icecream, for which he...
2
Last post by GMATGuruNY
Sat Sep 24, 2011 4:30 am
Integers
by Gavan »
Which of the following is not the sum of three integers whose product...
2
Last post by Gavan
Sat Sep 24, 2011 2:48 am
Difficult PS Q?
by briology »
Hi All-- I got this problem during a practice test today. Train M and...
8
Last post by gmatclubmember
Sat Sep 24, 2011 2:35 am
Confusing percent question....easy but I can't see it
by myfish »
The average new salary increased by 10 percent. If I work with the...
4
Last post by myfish
Fri Sep 23, 2011 8:29 pm
Statistics Problem
by briology »
The average of 5 numbers is 6.8. If one of the numbers is multiplied...
3
Last post by briology
Fri Sep 23, 2011 2:37 pm
how many employees are trained to work in all 3 restaurants?
by leonswati »
At a certain resort, each of the 39 food service employees is trained...
8
Last post by gmatclubmember
Fri Sep 23, 2011 11:28 am
hard OG work problem
by Redhorsep »
Hi, I wonder if there's a short cut to this problem, that is, without...
1
Last post by GMATGuruNY
Fri Sep 23, 2011 10:16 am
Picking friends
by varun7nurav »
Hi, came across this question in MGmat test. The solution provided...
4
Last post by varun7nurav
Fri Sep 23, 2011 9:45 am
how can i solve this using the matrix instead of a venn
by nishnosh »
Each of 25 people is enrolled in history, mathematics, or both. If 20...
1
Last post by cans
Fri Sep 23, 2011 9:17 am
Standard Deviation.
by Ashetty »
9.4, 9.9, 9.9, 9.9, 10.0, 10.2, 10.2, 10.5 The mean and standard...
6
EXPERT REPLIES
Last post by gmatclubmember
Fri Sep 23, 2011 8:25 am
standard deviation
by NehaPathak »
Certain sample of data has the mean of 20.0 and s.d. 3,which of the...
2
Last post by knight247
Fri Sep 23, 2011 7:20 am
Set K
by DevitaN »
Question: K is a set of numbers such that (i) if x is in K, then -x...
5
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Fri Sep 23, 2011 6:16 am