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Problem Solving

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Last post
Probability Question
by sukhman »
If five fair coins are tossed together , what is the probability of...
3
Last post by sanjoy18
Sun Sep 08, 2013 12:52 pm
Combination problem
by Anindya Madhudor »
If n balls are placed at random into n cells, find the probability...
3
Last post by Java_85
Sun Sep 08, 2013 11:12 am
A, B and C working alone can complete a work in 24
by vinni.k »
A, B and C working alone can complete a work in 24, 32, and 48 days...
4
EXPERT REPLIES
Last post by GMATGuruNY
Sun Sep 08, 2013 7:15 am
reminder
by sanjoy18 »
what is the reminder when 3^444+4^333 is divided by 5 A)0 B)1 C)2 D)3...
4
Last post by vinay1983
Sat Sep 07, 2013 7:37 am
word translation:- please explain each step especially last
by Anusha.h »
In a used car lot, there are 3 times as many red cars as green cars....
3
EXPERT REPLIES
Last post by Anusha.h
Sat Sep 07, 2013 7:03 am
maxium and minium
by sanjoy18 »
|a-2|<4;|b+4|<8;|2c-3|<11. Find the difference between the...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sat Sep 07, 2013 6:32 am
Help with Geometry Concept
by atlcharm »
This is a GRE math question, but I heard I can get help here! Thanks...
2
Last post by ganeshrkamath
Sat Sep 07, 2013 4:53 am
Inequality
by Imsukhi »
if a>b and p<q then which of the following is true? A) a-q...
9
EXPERT REPLIES
Last post by subhakam
Fri Sep 06, 2013 5:49 am
Need explanation for probability problem.
by akpareek »
If a certain coin is flipped, the probability that the coin will land...
7
EXPERT REPLIES
Last post by [email protected]
Thu Sep 05, 2013 11:35 pm
Percents- 700-800
by lavinia »
Currently, y percent of the members on the finance committee are...
8
EXPERT REPLIES
Last post by [email protected]
Thu Sep 05, 2013 12:47 pm
Number theory problem 1:
by \'manpreet singh »
The number m yields a remainder p when divided by 14 and a remainder...
3
Last post by GMATGuruNY
Thu Sep 05, 2013 10:00 am
Monitors manufactured at a certain plant in November
by melguy »
Of the computer monitors manufactured at a certain plant in November,...
4
EXPERT REPLIES
Last post by GMATGuruNY
Thu Sep 05, 2013 9:57 am
What is the area of a triangle (easier solution)
by melguy »
Please help with the problem. Thanks
7
EXPERT REPLIES
Last post by melguy
Thu Sep 05, 2013 8:05 am
Power of 3
by melguy »
Hello I am confused with what to take common when exponents are...
6
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Thu Sep 05, 2013 5:57 am
A good practice prob:
by \'manpreet singh »
If 42.42 = k(14 + m/50), where k and m are positive integers and m...
2
EXPERT REPLIES
Last post by [email protected]
Wed Sep 04, 2013 11:40 pm
Geometry
by vinay1983 »
What is the approximate perimeter of a square that has a diagonal of...
5
EXPERT REPLIES
Last post by [email protected]
Wed Sep 04, 2013 11:28 pm
Manhattan Word Problem
by shivshankar054 »
Hi All, pls help me with this problem.. Sorry couldn't type as the...
2
Last post by shivshankar054
Wed Sep 04, 2013 11:11 pm
Can't understand this problem.....
by yumi2012 »
A closed cylindrical tank contains 36Ï€ cubic feet of water and is...
2
EXPERT REPLIES
Last post by [email protected]
Wed Sep 04, 2013 11:11 pm
Geometry
by vinay1983 »
There are 12 points on a plane, 6 of which are collinear. How many...
2
EXPERT REPLIES
Last post by vipulgoyal
Wed Sep 04, 2013 9:20 pm
If 5^11 × 4^5 = 5 × 10^k , what is the value of k?
by soneee »
I am having trouble with this question. If 5^11 Ã- 4^5 = 5 Ã- 10^k...
2
EXPERT REPLIES
Last post by GMATGuruNY
Wed Sep 04, 2013 9:05 pm
Is there a shortcut for this problem?
by prachi.sakhare »
How many consecutive zeros will appear at the end of 43! if that...
6
EXPERT REPLIES
Last post by gabrieldoria
Wed Sep 04, 2013 5:49 pm
Number property problem, need explanation plzz
by akpareek »
The function f is defined by f(x)= √x-10 for all positive...
2
EXPERT REPLIES
Last post by Mike@Magoosh
Wed Sep 04, 2013 12:33 pm
Number property problem, need explanation plz
by akpareek »
The sequence a1, a2,.....an...is such that an= 2an-1-x for all...
3
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Wed Sep 04, 2013 9:29 am
Algebra
by sanjoy18 »
If (ax+b)+3/(ax+b)=2 then value of is a)-2 b)-3 c)-6 d)-4 e)none of...
6
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Wed Sep 04, 2013 6:25 am
number system
by vipulgoyal »
For a certain set of numbers, if x is in the set, then x-3 is also in...
3
EXPERT REPLIES
Last post by vinay1983
Wed Sep 04, 2013 1:25 am
Need explanation for probability problem (URGENT)
by akpareek »
A box contains 10 light bulbs, fewer than half of which are...
3
EXPERT REPLIES
Last post by GMATGuruNY
Tue Sep 03, 2013 8:51 pm
Need explanation for statistics problem
by akpareek »
In a demographic study, the population and total income of a certain...
3
EXPERT REPLIES
Last post by Mike@Magoosh
Tue Sep 03, 2013 4:22 pm
Quick way to find a prime factor of a number ?
by II »
How would you find the prime factors of 3841, for example ? Does...
6
Last post by chakradhar143
Tue Sep 03, 2013 11:48 am
Cirlce chord Question
by akhilpahuja »
Two circle C1 and C2 of radius 2 and 3 respectively touch each other...
2
EXPERT REPLIES
Last post by Mike@Magoosh
Tue Sep 03, 2013 8:56 am
Remainder Question
by topspin20 »
When positive integer n is divided by 7, the remainder is 2. When n...
13
EXPERT REPLIES
Last post by vinay1983
Tue Sep 03, 2013 3:28 am
A team of 6 cooks is chosen from 8 Men and 5 Women
by johndoe88 »
A team of 6 cooks is chosen from 8 Men and 5 Women. The team must...
6
EXPERT REPLIES
Last post by ganeshrkamath
Tue Sep 03, 2013 3:09 am
Inequalities problem
by psm12se »
If x≠0 and (x /|x|)<x, which of the following must be true?...
2
EXPERT REPLIES
Last post by [email protected]
Mon Sep 02, 2013 1:55 pm
Percentage Conundrum
by BlueDragon2010 »
Positive integer y is 50% of 50% of positive integer x, and y percent...
8
EXPERT REPLIES
Last post by [email protected]
Mon Sep 02, 2013 1:43 pm
Properties of cicles
by Mission2012 »
Is it true - Only way two perpendicular lines can be tangent to the...
3
EXPERT REPLIES
Last post by Mike@Magoosh
Mon Sep 02, 2013 10:33 am
Confused or going crazy - Cylinder Tank
by quiimari »
This is question 5 on the just published 2012 OG and either they made...
9
EXPERT REPLIES
Last post by Resp007
Mon Sep 02, 2013 7:31 am
Rational Equations
by topspin20 »
From an MGMAT practice test: Machine A, working alone at a constant...
3
Last post by sanjoy18
Sun Sep 01, 2013 10:33 pm
Quadratic Equations
by vinay1983 »
Need the simplest way to this question.
3
EXPERT REPLIES
Last post by GMATGuruNY
Sun Sep 01, 2013 9:21 pm
Question on exponents
by stephkhaira »
What is the value of x? 2^x - 2^(x-2) = 3*(2^13) 9 11 13 15 17 ans:...
3
EXPERT REPLIES
Last post by stevennu
Sun Sep 01, 2013 9:10 pm
confusing one
by rishianand7 »
A group of Republicans and Democrats was surveyed and each member was...
3
Last post by Java_85
Sun Sep 01, 2013 2:58 pm
Quadratic Equations
by vinay1983 »
3
EXPERT REPLIES
Last post by sanjoy18
Sun Sep 01, 2013 12:51 pm
What is being asked?
by [email protected] »
What are the coordinates for the point on Line AB (see figure) that...
4
EXPERT REPLIES
Last post by [email protected]
Sun Sep 01, 2013 12:36 pm
a really good question for practice
by sana.noor »
In the first week of last month, Company X realized an average...
6
EXPERT REPLIES
Last post by [email protected]
Sun Sep 01, 2013 12:33 pm
Which of the following must be true?
by topspin20 »
Today Lauren is 3 times as old as Joe and Joe is 6 years younger than...
2
EXPERT REPLIES
Last post by Java_85
Sun Sep 01, 2013 11:57 am
Quadratic Equations
by vinay1983 »
lf a, b, and c are constants, a > b > c, and x^3 - x = (x -...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sun Sep 01, 2013 9:12 am
GMAT prep -Question
by parulmahajan89 »
For which of the following functions F is F(X)=f(1-x) for all x?...
1
EXPERT REPLIES
Last post by Brent@GMATPrepNow
Sun Sep 01, 2013 9:01 am
Can you help with this DS problem?
by yumi2012 »
s={1,2,5,7,x} If x is a positive integer, is the mean of set S...
2
EXPERT REPLIES
Last post by GMATGuruNY
Sun Sep 01, 2013 3:00 am
Three Overlapping Sets Formula
by crejoc »
The Three Overlapping Sets Formula Here it is: Total = Group1 +...
13
Last post by Resp007
Sat Aug 31, 2013 1:37 pm
combinatorics
by rishianand7 »
A license plate consists of a combination of 6 digits or letters. All...
4
EXPERT REPLIES
Last post by sanjoy18
Sat Aug 31, 2013 12:32 pm
Square, cube and fifth power
by melguy »
Please help. Thanks
2
EXPERT REPLIES
Last post by sanjoy18
Sat Aug 31, 2013 12:18 pm
question on sequences
by stephkhaira »
For all 1<=k<=10, the kth term of a sequence is (-1)^(k+1) *...
5
EXPERT REPLIES
Last post by sanjoy18
Sat Aug 31, 2013 2:51 am