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Problem Solving

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Last post
F(n)
by shashank.ism »
A function f(n) is defined for all positive real values of...
1
Last post by harsh.champ
Mon Feb 08, 2010 7:08 am
coordinate geometry
by gmatnmein2010 »
In the xy plane, Line k has a positive slope and x-intercept 4. If...
3
Last post by thephoenix
Mon Feb 08, 2010 6:46 am
polynomial
by shashank.ism »
If x, xy, xy2 are the sides of a triangle, where x and y are real...
2
Last post by thephoenix
Mon Feb 08, 2010 6:39 am
rate and work
by gmatnmein2010 »
A contractor estimated that his 10-man crew could complete the...
2
Last post by thephoenix
Mon Feb 08, 2010 6:19 am
seating arrangements
by gmatnmein2010 »
1. A family consisting of one mother, one father, two daughters and a...
3
Last post by shashank.ism
Mon Feb 08, 2010 6:12 am
Progressions
by harsh.champ »
Sum of the first 30 terms of an arithmetic progression is 0. If the...
1
Last post by shashank.ism
Mon Feb 08, 2010 5:32 am
Elementary Number Property
by Aman verma »
Q: Nancy wanted to cut a cubical cake into 120 identical pieces...
4
Last post by Aman verma
Mon Feb 08, 2010 5:26 am
P & C
by harsh.champ »
Out of two -thirds of the total number of basket-ball matches, a team...
1
Last post by shashank.ism
Mon Feb 08, 2010 5:24 am
ratio
by rahul.s »
3 machines have a productivity ratio of 1:2:5. all 3 machines are...
2
Last post by gauravgundal
Mon Feb 08, 2010 5:24 am
probability
by rahul.s »
molly is playing a game that requires her to roll a fair die...
2
Last post by harsh.champ
Mon Feb 08, 2010 5:20 am
Circles
by harsh.champ »
From a circular sheet of paper with a radius of 20 cm, four circles...
1
Last post by shashank.ism
Mon Feb 08, 2010 5:19 am
cyclists on a track
by harsh.champ »
Two cyclists are travelling at a speed of 3 km/hr and 10 km/hr around...
0
Last post by harsh.champ
Mon Feb 08, 2010 4:54 am
population of bees
by rahul.s »
4 years from now, the population of a colony of bees will reach 1.6 *...
3
Last post by thephoenix
Mon Feb 08, 2010 1:04 am
Sam gets on the elevator at the 11th floor of a building and
by imane81 »
Please help on this one, thank you Sam gets on the elevator at the...
7
Last post by shashank.ism
Mon Feb 08, 2010 12:10 am
Perm/Comb
by becnil »
How many different ways can 2 students be seated in a row of 4 desks...
9
Last post by Stuart@KaplanGMAT
Mon Feb 08, 2010 12:06 am
Tom reads at an average speed of 30 pages per hour while Jas
by imane81 »
Your input is much appreciated in this one...thank you Tom reads at...
4
Last post by Stuart@KaplanGMAT
Sun Feb 07, 2010 11:49 pm
Number system
by harsh.champ »
A company manufactures pencils in boxes of 6, 9, and 20. The boxes...
6
Last post by kvamsy
Sun Feb 07, 2010 11:25 pm
Invisible right angled triangle
by bhumika.k.shah »
Right triangle PQR is to be constructed in the xy-plane so that the...
3
Last post by shashank.ism
Sun Feb 07, 2010 10:32 pm
Wire cut into 3 equal parts
by Osirus@VeritasPrep »
A wire is cut into 3 equal parts. The resulting segments are then cut...
1
Last post by ajith
Sun Feb 07, 2010 8:02 pm
Remainder question
by Osirus@VeritasPrep »
If the integer P leaves a remainder of 4 when divided by 9, all of...
3
Last post by Osirus@VeritasPrep
Sun Feb 07, 2010 7:53 pm
Prime Factorization
by skorolkova »
What is the greatest prime factor of 4^(17) - 2^28? I thought it...
3
Last post by harsh.champ
Sun Feb 07, 2010 2:46 pm
Percentage
by harsh.champ »
In a survey, it was found that the number of students in the college...
6
Last post by shashank.ism
Sun Feb 07, 2010 1:15 pm
Number Properties
by Aman verma »
Q: When a number is divided by 1,2,3,4,5,.........(n-1),n...
25
EXPERT REPLIES
Last post by beatthegmat
Sun Feb 07, 2010 1:13 pm
Cube-->Cuboid
by harsh.champ »
78 identical cubes each with 2 cm edge are joined together to form a...
5
Last post by ajith
Sun Feb 07, 2010 1:05 pm
Tania GMAT
by harsh.champ »
Tania prepares for the GMAT examination by practicing for 100 days....
3
Last post by onedayi'll
Sun Feb 07, 2010 12:52 pm
Papercut parts
by harsh.champ »
I cut a piece of paper in four equal parts. Now, I cut exactly one...
2
Last post by ajith
Sun Feb 07, 2010 12:33 pm
Alphabet arrangement
by harsh.champ »
A five letter word having distinct alphabets is formed using the five...
2
Last post by ajith
Sun Feb 07, 2010 12:28 pm
Probability
by harsh.champ »
In a box containing 15 apples, exactly 6 apples are rotten. Each day...
2
Last post by ajith
Sun Feb 07, 2010 12:12 pm
Sets
by harsh.champ »
Let S be the set of integers 4, 12, 20, 28, ......., 516 and...
2
Last post by sars72
Sun Feb 07, 2010 11:53 am
Averages
by harsh.champ »
On Madagascar Island, there are x dodos in a particular year. 30...
5
Last post by shashank.ism
Sun Feb 07, 2010 11:35 am
Word Problem
by Aman verma »
Q: Each family in New York county has atmost two adults and the total...
14
EXPERT REPLIES
Last post by Stuart@KaplanGMAT
Sun Feb 07, 2010 11:11 am
Sets
by harsh.champ »
Let T be the set of integers 3, 11, 19, 27,...451, 459, 467 and S...
2
EXPERT REPLIES
Last post by ajith
Sun Feb 07, 2010 9:05 am
f(x) f(y)
by shashank.ism »
Let f(x) be a function satisfying f(x) f(y) = f(xy) for all real x,...
6
Last post by shashank.ism
Sun Feb 07, 2010 8:35 am
Profit,Loss and Discount
by harsh.champ »
A store owner plans to sell two types of MP3 players. One type costs...
2
Last post by ajith
Sun Feb 07, 2010 8:18 am
Circles
by harsh.champ »
The diameter of the smaller circle is equal to the side of the square...
2
Last post by ajith
Sun Feb 07, 2010 8:06 am
Geometry
by harsh.champ »
The area confined between the graphs |x| = |y| and |x| = a is...
2
Last post by ajith
Sun Feb 07, 2010 7:43 am
perfect squares
by harsh.champ »
Consider four digit numbers for which the first two digits are equal...
2
Last post by ajith
Sun Feb 07, 2010 7:37 am
algebraic expressions
by rahul.s »
in a used car lot, there are 3 times as many red cars as green cars....
5
Last post by shashank.ism
Sun Feb 07, 2010 6:52 am
calculate k
by shashank.ism »
If x + r = 1, p + 1 = n, r + n = k, r = 8 and x + p + k = 30, the...
5
Last post by shashank.ism
Sun Feb 07, 2010 6:47 am
Co - Ordinate Geometry
by abhi332 »
if point (m,n) is a point on line with equation y=f(x) . which if the...
4
Last post by ajith
Sun Feb 07, 2010 5:49 am
Factor
by shashank.ism »
Let P(x) = kx3 + 2k2x2 + k3. Find the sum of all possible real...
6
Last post by sunil_snath
Sun Feb 07, 2010 4:11 am
Dice
by shashank.ism »
A dice is rolled three times. Find the probability of getting a...
6
EXPERT REPLIES
Last post by shashank.ism
Sun Feb 07, 2010 2:29 am
Standard Deviation
by engg.manik »
Q.A certain characteristic in a large population has a distribution...
10
Last post by Stuart@KaplanGMAT
Sat Feb 06, 2010 8:27 pm
Compounded Interest
by money9111 »
Lori deposits $100 in a savings account at 2% interest, compounded...
4
Last post by Stuart@KaplanGMAT
Sat Feb 06, 2010 8:19 pm
A.P., G.P.
by shashank.ism »
If a1, a2, a3 are the first three terms of an arithmetic progression...
7
EXPERT REPLIES
Last post by Ian Stewart
Sat Feb 06, 2010 6:02 pm
Tic to tocs ratio problem
by kn2130 »
If 1 tick equals 3 tacs and 2 tacs equal 5 tocs, what is the ratio of...
4
Last post by kn2130
Sat Feb 06, 2010 1:11 pm
Units Digit
by money9111 »
What is the units digit of (2^5)(3^3)(4^2). How do you figure this...
4
Last post by money9111
Sat Feb 06, 2010 1:10 pm
permutation/combination
by shashank.ism »
An 'n' digit number is formed using the digits 3, 4, 5...
5
Last post by vscid
Sat Feb 06, 2010 1:01 pm
probability-horses
by vscid »
7
EXPERT REPLIES
Last post by vscid
Sat Feb 06, 2010 12:46 pm
a,b,c
by shashank.ism »
If (a^2)(b^3)(c) = 256/27 then find the minimum value of (a + b + c),...
1
Last post by outreach
Sat Feb 06, 2010 12:33 pm