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Problem Solving

Topics Posts Last Post

how many different positive prime factors?

by:
If n is a positive integer less than 200 and 14n⁄60 is also an...

2 Thu Jul 16, 2009 5:05 am

by: rd85 View latest post

Sticky pads

by:
2 sizes of sticky pads. Each has 4 colors - Blue, Green, Yellow, and...

2 Thu Jul 16, 2009 5:02 am

by: rd85 View latest post

2 slips drawn

by:
Each of the integers from 0 to 9, inclusive, is written on a separate...

1 Thu Jul 16, 2009 4:23 am

by: shibal View latest post

Rate of a reaction

by:
The rate of a reaction is directly proportional to the square of the...

1 Thu Jul 16, 2009 2:51 am

by: rd85 View latest post

probability

by:
If E and F are two independent events, and have the same probability...

7 Thu Jul 16, 2009 12:47 am

by: tohellandback View latest post

GMAT OG 11th ed PS #248

by:
The problem: Right triangle PQR is to be constructed in the xy-plane...

2 EXPERT REPLIES Thu Jul 16, 2009 12:27 am

by: tgf View latest post

Ball is drawn from a box

by:
A pencil box contains 3 red, 4 white and 3 black balls. In how many...

5 EXPERT REPLIES Wed Jul 15, 2009 10:11 pm

by: Naruto View latest post

PART TIME AND FULL TIME

by:
There are 2 kinds of staff members in a certain company, PART TIME...

3 Wed Jul 15, 2009 10:10 pm

by: apoorva.srivastva View latest post

Elevator ride

by:
Steve gets on the elevator at the 11th floor of a building and rides...

7 Wed Jul 15, 2009 9:40 pm

by: struggling_guy2001 View latest post

permutations again

by:
On how many ways can the letters of the word "COMPUTER" be...

2 Wed Jul 15, 2009 9:22 pm

by: apoorva.srivastva View latest post

f(x)

by:
for which of the following functions f is f(x)=f(1-x) for all x? (a)...

2 Wed Jul 15, 2009 1:40 pm

by: xilef View latest post

Gmat Prep 1

by:
If the d is the standard deviation of x,y and z,what is the standard...

5 EXPERT REPLIES Wed Jul 15, 2009 12:30 pm

by: abhinav85 View latest post

Triangles

by:
In isoceles triangle RST what is the measure of angle R? (1) The...

2 Wed Jul 15, 2009 11:42 am

by: masuarezdl View latest post

What is this?

by:
Alright, this question is just confusing... Any ideas? For all...

4 Wed Jul 15, 2009 11:19 am

by: masuarezdl View latest post

Exponents and Fractions

by:
Any clues on this one? If (1/5)^m * (1/4)^18 = 1/2(10)^35, then m= a)...

5 Wed Jul 15, 2009 10:23 am

by: uw490 View latest post

PS- map sell problem

by:
A certain store sells all maps at one price and all books at another...

6 Wed Jul 15, 2009 8:50 am

by: abcdefg View latest post

rectangular coordinate system

by:
no idea how to do it....

9 Wed Jul 15, 2009 6:17 am

by: cata1yst View latest post

Perfect square

by:
the least number which should be subtracted from 10420 to make it...

3 EXPERT REPLIES Wed Jul 15, 2009 1:39 am

by: v View latest post

equialteral triangel

by:
i got it right, educated guess.... but what is the right approach?

9 Tue Jul 14, 2009 11:40 pm

by: struggling_guy2001 View latest post

coins

by:
i know it's easy, but i wanna see the different approaches...

6 EXPERT REPLIES Tue Jul 14, 2009 11:07 pm

by: Stuart Kovinsky View latest post

A basket contains apples

by:
A basket contains 5 apples, of which 1 is spoiled and the rest are...

5 Tue Jul 14, 2009 9:34 pm

by: struggling_guy2001 View latest post

which of the following cannot be the median

by:
which of the following cannot be the median of the three ordered...

3 Tue Jul 14, 2009 9:29 pm

by: tohellandback View latest post

Intermediate Rate Question

by:
Can someone please help? Question: If 6 machines run at the same...

1 Tue Jul 14, 2009 7:27 pm

by: ssmiles08 View latest post

if anyone can help me solving this ques.

by:
Q: The equilateral triangle has a perimeter of 18 inches and is...

7 Tue Jul 14, 2009 6:11 pm

by: zenithexe View latest post

permutations & combinations

by:
A law firm consists of 4 senior partners and 6 junior partners. How...

5 Tue Jul 14, 2009 3:02 pm

by: doclkk View latest post

Population

by:
A certain city with a population of 132,000 is to be divided into 11...

1 Tue Jul 14, 2009 2:13 pm

by: kaulnikhil View latest post

how is this a % change question?

by:
On average, the bottle-nosed dolphin comes up for air once every two...

7 Tue Jul 14, 2009 1:42 pm

by: GID09 View latest post

x^4+y^4

by:
x^4+y^4=100, then the greatest possible value of x is between? (a) 0...

2 Tue Jul 14, 2009 1:12 pm

by: sk8ternite View latest post

Tough Sequence Question

by:
The infinite sequence a1, a2,...,an is defined such that an = (n+2) /...

3 Tue Jul 14, 2009 10:55 am

by: iggy614 View latest post

Machines X and Y run at different constant rates

by:
Machines X and Y run at different constant rates, and machine X can...

3 Tue Jul 14, 2009 9:06 am

by: rangerguy2000 View latest post

a basic question

by:
when we say even numbers, Can we consider negative numbers too? same...

1 Tue Jul 14, 2009 7:08 am

by: sreak1089 View latest post

are any of these facts helpful in any way?

by:
I have written down some number properties. Just wondering if they're...

1 EXPERT REPLIES Tue Jul 14, 2009 6:23 am

by: Ian Stewart View latest post

Hi, Please Help

by: Page: 1, 2
1) An inner circle is inscribed in a square, which is inscribed in...

17 Tue Jul 14, 2009 2:00 am

by: abbaspeeran View latest post

f(a+b)

by:
...

8 Mon Jul 13, 2009 10:10 pm

by: struggling_guy2001 View latest post

pumps

by:
two water pumpss working together can fill a pool in 4 hrs. if the...

3 Mon Jul 13, 2009 4:28 pm

by: ssmiles08 View latest post

Re: Calling plan

by:
Pls explain.

4 EXPERT REPLIES Mon Jul 13, 2009 1:21 pm

by: Ian Stewart View latest post

Probability

by:
A certain school has 50 students assigned randomly to 5 distinct...

2 Mon Jul 13, 2009 1:07 pm

by: uw490 View latest post

Difficult Math Problems #65 - Permutations

by:
Goldenrod and No Hope are in a horse race with 6 contestants. How...

8 EXPERT REPLIES Mon Jul 13, 2009 11:09 am

by: Stuart Kovinsky View latest post

number of light bulbs

by:
A number of light bulbs were purchased to illuminate a gym. However,...

4 Mon Jul 13, 2009 11:06 am

by: Ad_Astra_Per_Aspera View latest post

Pool & Sauna

by:
Pls explain.

4 Mon Jul 13, 2009 10:49 am

by: tom4lax View latest post

finding the relation between 2 numbers

by:
If x>y^2 (ie. to the power of 2) >z^4, which of the following...

1 EXPERT REPLIES Mon Jul 13, 2009 10:48 am

by: Stuart Kovinsky View latest post

leap year

by:
June 25, 1982, fell on a Friday. On which day of the week did June...

4 Mon Jul 13, 2009 8:24 am

by: uw490 View latest post

Kaplan

by:
Please help me in solving this question here.. It confused me before...

5 Mon Jul 13, 2009 3:44 am

by: ketkoag View latest post

please help with this difficult problem

by:
I've attached a pic of the problem at the solution. Sorry for not...

4 Mon Jul 13, 2009 2:57 am

by: rah_pandey View latest post

Algebraic Problem

by:
A customer using a certain telephone calling plan pays a fee of $25...

4 Mon Jul 13, 2009 2:46 am

by: rah_pandey View latest post

GMATprep: all points (x,y) that lie below

by:
Please explain why the answer is E???? :shock: OA: y<-1/2*x+3 But...

6 Sun Jul 12, 2009 10:29 pm

by: real2008 View latest post

Real Number q how to solve

by:
for which of the following values of x is sqr root(1- sqr root(2) -...

2 Sun Jul 12, 2009 9:26 pm

by: tj123 View latest post

GMAT Prep: Functions

by:
Hi guyz....Anyone on the answer to the following Question? I solved...

4 Sun Jul 12, 2009 9:22 pm

by: real2008 View latest post

exponents, no matching bases

by:
5^21*4^11=2*10^n what is N?

2 Sun Jul 12, 2009 9:02 pm

by: jjk View latest post

Temporary employees

by:
Of the 12 temporary employees in a certain company, 4 will be hired...

2 Sun Jul 12, 2009 6:18 pm

by: niraj_a View latest post

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