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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
EXPERT REPLIES
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
Orange Juice added
by dowellmust »
An 18 oz., glass is filled with 8 oz., of orange juice. More orange...
5
Last post by gmatclubmember
Fri Sep 23, 2011 3:16 am
Exponents/Radicals: Simplify ( 1 / 3 - sqrt8 ) ²
by II »
Simplify: ( 1 / 3-√8 ) ² A) 9+√8 B)...
4
Last post by kanishkporwal
Fri Sep 23, 2011 2:07 am
bacterial growth
by gunjan1208 »
A strain of bacteria multiplies such that the ratio of its population...
5
Last post by saketk
Thu Sep 22, 2011 11:43 pm
Total cost problem
by sparkle6 »
Rates for having a manuscript typed at a certain typing service are...
1
Last post by GMATGuruNY
Thu Sep 22, 2011 11:29 pm
OG Diagnostic test - Prime factor
by Cheese12 »
I dont really remember the exact wordings of this question. I am...
3
Last post by GMATGuruNY
Thu Sep 22, 2011 12:48 pm
Exponent Problem
by alicia »
This was a problem on my practice test. Please advise on the step by...
6
Last post by leumas
Thu Sep 22, 2011 9:31 am
statistics
by shrutee »
The residents of town x participated in a survey to determine the...
1
Last post by gmatclubmember
Thu Sep 22, 2011 7:58 am
basic combination
by joconnor »
Two members of a club are to be selected to represent the club at a...
1
Last post by gmatclubmember
Thu Sep 22, 2011 7:53 am
Different ways in which donuts can be distributed
by shrey2287 »
Larry, Michael, and Doug have five donuts to share. If any one of the...
5
EXPERT REPLIES
Last post by rohit_gmat
Thu Sep 22, 2011 7:35 am
Mixture Problem
by rnaah »
According to the directions on a can of frozen orange juice...
3
Last post by rohit_gmat
Thu Sep 22, 2011 7:29 am
GCF and LCM of multiple numbers
by pavand »
1. Is it true that GCF(90,5,5,5) = GCF(90,5,5) = GCF(90,5) = 5? 2. Is...
1
Last post by gmatclubmember
Thu Sep 22, 2011 5:51 am
GMATPrep PS Function
by myfish »
Thank you so much for showing me how to do this one.
4
EXPERT REPLIES
Last post by GMATGuruNY
Thu Sep 22, 2011 3:37 am
GMATPrep PS Questions Help
by myfish »
I am struggling to find answers for the GMATPrep questions on BTG and...
4
EXPERT REPLIES
Last post by myfish
Wed Sep 21, 2011 10:09 pm
P & C
by jogi1984 »
In how many different orders can the people Alice, Benjamin,...
2
Last post by shankar.ashwin
Wed Sep 21, 2011 9:27 pm
PS
by jogi1984 »
The distance from the x -axis to point P is half the distance from...
2
EXPERT REPLIES
Last post by Anurag@Gurome
Wed Sep 21, 2011 8:57 pm
Sequences
by sparkle6 »
For any positive integer n, the sum of the first n positive integers...
4
EXPERT REPLIES
Last post by Anurag@Gurome
Wed Sep 21, 2011 7:17 pm
A jewelry store sells customized rings
by pnk »
A jewelry store sells customized rings in which 3 gems selected by...
10
Last post by beatthegmat.garry
Wed Sep 21, 2011 7:09 pm
Tricky counting: 5-on-5 soccer game
by Brent@GMATPrepNow »
In response to knight247's request at , I created this tricky...
7
Last post by tuanquang269
Wed Sep 21, 2011 7:00 pm
Radical Problem
by fangtray »
² please help me solve. more than 1 method is preferable. thanks...
1
Last post by cans
Wed Sep 21, 2011 6:15 pm
problem 2 digit integers, same digits, reverse order
by mepinoargote »
OG 182: If the two-digit integers M and N are positive and have the...
10
Last post by Bigred2008
Wed Sep 21, 2011 4:33 pm
Numbers
by shankar.ashwin »
Let S(n) denote the sum of the digits of a natural number 'n'. 2n +...
3
Last post by tpr-becky
Wed Sep 21, 2011 3:10 pm
Simple problem-Water pump
by Ashetty »
I got answer right.Simple problem-But someone please explain me how...
2
Last post by tpr-becky
Wed Sep 21, 2011 2:09 pm
Property of numbers
by isisalaska »
Hi I have finish the OG math review (green book) and I have realized...
5
Last post by sl750
Wed Sep 21, 2011 12:29 pm
Difficult Math Problem #87 - Probability
by 800guy »
As a part of a game, four people each much secretly chose an integer...
9
Last post by sl750
Wed Sep 21, 2011 11:47 am