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Problem Solving

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Last post
Probability Question
by ruchisharma »
When tossed, a certain coin has equal probability of landing on...
1
Last post by kmittal82
Fri Aug 13, 2010 7:02 am
Inequality, can we divide by zero?
by arora007 »
For what range of values of 'x' will the inequality 15 x - (2/x) >...
2
Last post by arora007
Fri Aug 13, 2010 4:57 am
two consecutive odd positive integers
by aarati »
Find two consecutive odd positive integers, sum of whose squares is...
2
Last post by sanju09
Fri Aug 13, 2010 3:40 am
Combinations question
by dchen »
Hi all, I'm terrible with combinations...there is a question here for...
1
Last post by sanju09
Fri Aug 13, 2010 3:06 am
How to solve this
by bajahaya »
Andrew drove his truck 100 miles, rounded to the nearest 10 miles,...
3
Last post by saurabhmahajan
Fri Aug 13, 2010 2:49 am
Algerbra Brain Fart
by Jinglander »
Can someone carefully show me how to isolate for a. I am having some...
2
Last post by sanju09
Thu Aug 12, 2010 10:22 pm
Really really hard var in answer choice
by Jinglander »
a b c and d are all posative. ab=c and a/b=d what is a+b answer is...
1
Last post by sanju09
Thu Aug 12, 2010 10:11 pm
graduates and above
by sanju09 »
The number of employees in xyz corp. is a prime number and is less...
3
Last post by sanju09
Thu Aug 12, 2010 8:07 pm
Permuation combination
by winnerhere »
Three numbers are selected from first 9 natural numbers.What is the...
8
EXPERT REPLIES
Last post by winnerhere
Thu Aug 12, 2010 6:57 pm
Another Vic
by Jinglander »
If ab=x and a/b=y and ab does not equal 0 then what is a^2-b^2. How...
1
EXPERT REPLIES
Last post by Rahul@gurome
Thu Aug 12, 2010 4:09 pm
MGMAT factors problem
by HPengineer »
This is from the MGMAT flash card set... Im having trouble...
6
Last post by kvcpk
Thu Aug 12, 2010 3:12 pm
How do I do this
by Jinglander »
x+y=a and x-y=b what is 2xy answer is (a^2-b^2)/2 How do you solve...
2
EXPERT REPLIES
Last post by nithi_mystics
Thu Aug 12, 2010 3:03 pm
OG 12th Q#157
by ketandoshi »
For any +ve integer n, the sum of the first n +ve integers equals...
5
EXPERT REPLIES
Last post by edwardsmichele
Thu Aug 12, 2010 10:42 am
5 PS answer explanation needed / GMATPrep Test 1
by kourousafama »
Hi, Could anyone help with the 5 attached PS questions answer...
11
Last post by kmittal82
Thu Aug 12, 2010 9:51 am
Rectangular Crate
by rashmi.kaushal »
A certain rectangular crate measures 8 feet by 10 feet by 12 feet. A...
5
Last post by Stuart@KaplanGMAT
Thu Aug 12, 2010 9:24 am
Question from Gmat Prep software
by Prashantbhardwaj »
I couldn't reach a logical explanation regarding the answer for this...
3
Last post by chris@veritasprep
Thu Aug 12, 2010 4:29 am
John and Jane started
by sanju09 »
John and Jane started solving a quadratic equation. John made a...
1
Last post by kvcpk
Thu Aug 12, 2010 3:44 am
last digit of
by sanju09 »
The last digit of 253^49 is (A) 1 (B) 3 (C) 6 (D) 7 (E) 9 Source: for...
1
Last post by kvcpk
Thu Aug 12, 2010 3:40 am
OG 11 - PS 241
by taim »
If the integer n has exactly 3 positive divisors, including 1 and n,...
2
Last post by sanju09
Thu Aug 12, 2010 3:38 am
OG 11 - PS 234
by taim »
I know the answer to this, but would like to understand why the...
3
Last post by kvcpk
Thu Aug 12, 2010 3:16 am
Number of words
by rahul goyal »
Eight different letters of an alphabet are given. Words of four...
1
Last post by kmittal82
Thu Aug 12, 2010 2:30 am
How to solve this
by zareentaj »
For all integers n \geq 1, which of the following is divisible by 9?...
1
Last post by kmittal82
Thu Aug 12, 2010 2:25 am
Please help ... Doubt :Venn diagrams problem
by praveen_gmat »
The table gives three factors to be considered when choosing an...
3
Last post by Prashantbhardwaj
Thu Aug 12, 2010 12:55 am
One Solution
by adi_800 »
2
Last post by zareentaj
Thu Aug 12, 2010 12:16 am
Arthimatic Progression...............
by sheelanadh »
In a flower bed, there are 23 rose plants in the first row, 21 in the...
3
Last post by clock60
Thu Aug 12, 2010 12:07 am
linear Equations...........
by likithae »
The sum of a two-digit number and the number obtained by reversing...
2
Last post by Prashantbhardwaj
Thu Aug 12, 2010 12:03 am
Find the equation of the circle......
by likithae »
If the lines 2x-3y=0 and 3x-4y=7 are two diameters of a circle of...
2
Last post by likithae
Wed Aug 11, 2010 11:30 pm
permutation and combinations
by likithae »
In how many ways can a pack of 52 cards be divided in 4 sets, three...
11
EXPERT REPLIES
Last post by likithae
Wed Aug 11, 2010 11:26 pm
Problem 2
by anwarma »
A 4 person task force is to be formed from the 4 men and 3 women who...
7
Last post by likithae
Wed Aug 11, 2010 11:20 pm
Proportaions
by Jinglander »
The amount of electrical current is inversely proportional to the...
3
Last post by aarati
Wed Aug 11, 2010 10:47 pm
Problem Solving
by er.twi.fb »
<1>A train travels from New York City to Chicago, a distance of...
3
Last post by aarati
Wed Aug 11, 2010 10:35 pm
tunnel entrance..
by sairamGmat »
The figure above shows the shape of a tunnel entrance. If the curved...
4
Last post by selango
Wed Aug 11, 2010 10:34 pm
Probability
by Nidhs »
Joshua and Jose work att an auto repair center with 4 other workers....
5
Last post by rahul goyal
Wed Aug 11, 2010 10:30 pm
help me to solve this ps problem
by sheelanadh »
If ^nP_r=30240 and ^nC_r=252 the the ordered pair (n,r) is equal to...
3
EXPERT REPLIES
Last post by aarati
Wed Aug 11, 2010 10:23 pm
Number Properties
by selango »
1.If N is a perfect square, then the number of factors of N will...
9
Last post by rahul goyal
Wed Aug 11, 2010 10:11 pm
Arrangement problem........
by aarati »
9 balls are to be placed in 9 boxes and 5 of the balls cannot fit...
2
EXPERT REPLIES
Last post by aarati
Wed Aug 11, 2010 10:10 pm
challenging ps for me......
by aarati »
If x=\frac{2}{3+\sqrt{7}}, then (x-3)^2 is equal to: (a) 1 (b)3 (c)6...
7
Last post by aarati
Wed Aug 11, 2010 10:03 pm
Permutations and Combinations
by aarati »
In how many ways 5 different balls can be arranged in to 3 different...
8
EXPERT REPLIES
Last post by aarati
Wed Aug 11, 2010 9:27 pm
how to solve these ps question
by aarati »
Find the exponent of 3 in 100!. please help me to solve it............
6
Last post by aarati
Wed Aug 11, 2010 9:25 pm
how to solve this type of questions..............
by likithae »
The number of ways in which 13 gold coins can be distributed among...
8
Last post by aarati
Wed Aug 11, 2010 8:38 pm
REALLY NEED HELP
by CrmnKnwls »
How you do find the area of a shape using coordinate pairs?!!?
3
Last post by Brian@VeritasPrep
Wed Aug 11, 2010 2:20 pm
Probability Question: Please Experts, settle once & for
by mainhoon »
Please answer and clarify why and how to solve such a question: I...
6
EXPERT REPLIES
Last post by mainhoon
Wed Aug 11, 2010 12:22 pm
Basketball Team combos
by Jinglander »
9 basketball players are trying out to be on a newly formed...
2
Last post by Jinglander
Wed Aug 11, 2010 11:14 am
Simliar tirangles
by Jinglander »
If I know two triangles share the same angle and also the sides that...
3
Last post by mallyaprs
Wed Aug 11, 2010 11:13 am
Hexagon Makes how many Triangles
by rashmi.kaushal »
ABCDE is a regular pentagon with F at its center. How many different...
1
Last post by outreach
Wed Aug 11, 2010 10:11 am
work machine A & B
by canuckclint »
Machine A, working alone at a constant rate, can complete a certain...
8
Last post by missrochelle
Wed Aug 11, 2010 9:15 am
Even-Odd
by rashmi.kaushal »
If j and k are positive integers, j - 2 is divisible by 4 and...
4
Last post by Brian@VeritasPrep
Wed Aug 11, 2010 8:52 am
Ratio Problem OG 192
by HPengineer »
The ratio, by volume, of soap to alcohol to water in a certain...
3
Last post by selango
Wed Aug 11, 2010 8:47 am
primes and divisibility 1
by Gurpinder »
K is a set of number such that (i) if x is in K, then -x is in K and...
2
Last post by Gurpinder
Wed Aug 11, 2010 8:34 am
primes and divisibility 2
by Gurpinder »
if y is an integer, is y^3 divisible by 9? (1) y is divisible by 4...
2
Last post by arora007
Wed Aug 11, 2010 8:27 am