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Problem Solving

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Last post
1000 PS Section I #20
by arzanr »
If y not equal to 3 and (3x)/y is a prime integer greater than 2,...
7
Last post by abhi332
Tue Feb 23, 2010 1:31 am
Difficult Math Question #43 - Sets
by 800guy »
A group of people participate in some curriculums, 20 of them...
8
Last post by ajith
Tue Feb 23, 2010 1:04 am
GMAT Prep Question - Please help solve!
by wakawaka111 »
Can someone walk me through this problem? For every integer k from 1...
2
Last post by wakawaka111
Mon Feb 22, 2010 9:01 pm
Intermediate Probability
by Aman verma »
Q: A and B pick up a card at random from a well shuffled pack of...
3
Last post by arzanr
Mon Feb 22, 2010 7:43 pm
Consecutive integers
by williamthesituation »
If x^3 -x = p, and x is odd, is p divisible by 24 p = (x-1)x(x+1) We...
3
Last post by Stuart@KaplanGMAT
Mon Feb 22, 2010 1:55 pm
Army
by shashank.ism »
An army code consists of 4 letters, the first two of which are...
13
Last post by mah927
Mon Feb 22, 2010 10:28 am
Square countertop
by acorra »
A square countertop has a square tile inlay in the center, leaving an...
12
EXPERT REPLIES
Last post by santosh_surathkal
Mon Feb 22, 2010 9:07 am
NO TRIGONOMETRY PLEASE
by sanju09 »
C is a point outside of a circle with centre A and radius r . CB and...
2
Last post by firdaus117
Mon Feb 22, 2010 7:33 am
tough lot, please bear
by sanju09 »
A lot contains 20 articles. The probability that the lot contains...
11
Last post by Aman verma
Mon Feb 22, 2010 7:00 am
probability and combinations
by thephoenix »
since these two are the most valued concept in GMAT , let me have the...
6
Last post by firdaus117
Mon Feb 22, 2010 6:52 am
Price Reductions
by harsh.champ »
The price of a cycle is reduced by 25 per cent. The new price is...
6
Last post by harshavardhanc
Mon Feb 22, 2010 6:46 am
stand in a ring
by sanju09 »
A and B stand in a ring with 10 others. If arrangement of 12 persons...
1
Last post by harsh.champ
Mon Feb 22, 2010 5:48 am
G is the centroid
by sanju09 »
In a triangle ABC, AB = AC, and the coordinates of points B and C are...
3
Last post by harsh.champ
Mon Feb 22, 2010 5:45 am
noticed the train?
by sanju09 »
A straight rail subway, which is 8 meter long, has P and Q as its two...
1
Last post by ajith
Mon Feb 22, 2010 5:04 am
train kills him
by sanju09 »
A straight rail subway, which is 8 meter long, has P and Q as its two...
1
Last post by ajith
Mon Feb 22, 2010 5:02 am
m is less than
by sanju09 »
Square roots of two successive positive integers, each greater than n...
7
Last post by ajith
Mon Feb 22, 2010 4:41 am
Badminton
by firdaus117 »
Adam and Smith are playing a game of badminton.Adam is currently on...
1
Last post by sanju09
Mon Feb 22, 2010 3:13 am
5 + 3 n is NEVER
by sanju09 »
For some integer n, 5 + 3 n is NEVER (A) a prime (B) divisible by 7...
22
Last post by sanju09
Mon Feb 22, 2010 1:39 am
What are the values of x?
by firdaus117 »
I will post the detailed solution if required after some discussion....
1
Last post by ajith
Mon Feb 22, 2010 1:08 am
Sugar - Bit on the Difficult side
by harsh.champ »
A salesman mixes three varieties of sugar costing Rs.20/kg, Rs.24/kg...
3
Last post by ashforgmat
Mon Feb 22, 2010 1:05 am
Clarification Needed
by harsh.champ »
I came across this question.I am confused by the term gain per cent...
6
Last post by firdaus117
Mon Feb 22, 2010 12:27 am
Proportion
by dheaven1 »
A snapshot measures 2 1/2 inches by 1 7/8 inches. It is to be...
1
Last post by thephoenix
Sun Feb 21, 2010 10:47 pm
Seconds and Hours
by tsmith93 »
A factory can produce 1 gizmo ever 333 seconds. How many hours will...
3
Last post by ashforgmat
Sun Feb 21, 2010 10:23 pm
Please help me.
by tsmith93 »
If the rent on an apartment goes up 10% every year, next year's rent...
7
Last post by ashforgmat
Sun Feb 21, 2010 10:04 pm
Functions
by Giorgio »
if F(X+Y)=F(x)F(y) what is F(0) ? 10 1 0 -1 -10
6
Last post by ashforgmat
Sun Feb 21, 2010 9:40 pm
integer r and s are distinct
by Nijeesh »
The integer r and s are distinct and each one not equal to 0. if...
4
Last post by ashforgmat
Sun Feb 21, 2010 9:34 pm
If each term in the sum a1+a2+a3+.....+an is either 7 or 77
by imane81 »
Your help in this one is much appreciated.. If each term in the sum...
3
Last post by shashank.ism
Sun Feb 21, 2010 8:48 pm
Rotation
by ramyaravindran »
I am not sure about the source of the question. I also do not have...
6
Last post by shashank.ism
Sun Feb 21, 2010 8:46 pm
books
by shashank.ism »
In order to sell his old books, which were priced at Rs. 63 per book,...
2
Last post by money9111
Sun Feb 21, 2010 8:05 pm
(2^12 - 2^6) / (2^6 - 2^3) =
by imane81 »
Please help solve this one (2^12 - 2^6) / (2^6 - 2^3) =
9
Last post by shashank.ism
Sun Feb 21, 2010 6:05 pm
Math years - please help me
by tsmith93 »
Boris was 26 years old in 1970, when his daughter, Olga, was born. In...
3
Last post by thephoenix
Sun Feb 21, 2010 5:21 pm
Probability
by tsmith93 »
Jason has twice as many red marbles as blue marbles. He puts them in...
3
Last post by thephoenix
Sun Feb 21, 2010 5:15 pm
Help needed please!
by tsmith93 »
If a and b are positive integers and their product is 3 times their...
1
Last post by shashank.ism
Sun Feb 21, 2010 4:11 pm
natural number
by shashank.ism »
How many six-digit numbers can be made by using the first 6 natural...
3
Last post by shashank.ism
Sun Feb 21, 2010 12:35 pm
Ratio
by shashank.ism »
A square and a regular hexagon have same area A . Find the ratio of...
8
Last post by shashank.ism
Sun Feb 21, 2010 12:32 pm
triangle
by shashank.ism »
In Triangle ABC, D and E are points on side AC such that AD:DE:EC is...
2
Last post by shashank.ism
Sun Feb 21, 2010 11:56 am
Number Theory
by Maze »
If both 11^2 and 3^3 are factors of the number a * 4^3 * 6^2 * 13^11,...
3
Last post by shashank.ism
Sun Feb 21, 2010 11:40 am
HCF
by shashank.ism »
Two numbers have 36 factors each and HCF of these two numbers is 36....
6
Last post by firdaus117
Sun Feb 21, 2010 11:29 am
unit digit
by daretodream »
What is the units digit of 6^15 - 7^4 - 9^3? A:8 B:7 C:6 D:5 E:4
12
Last post by shashank.ism
Sun Feb 21, 2010 11:16 am
voters : another( word problem + weighted average)
by bhumika.k.shah »
Last year, all registered voters in Kumannia voted either for the...
7
Last post by firdaus117
Sun Feb 21, 2010 9:57 am
Natural Numbers
by Aman verma »
Q: All the natural numbers less than 1000 but not containing the...
10
Last post by shashank.ism
Sun Feb 21, 2010 5:47 am
Tricky question
by shashank.ism »
There are 28 students in a class. The first student draws a line of...
9
Last post by shashank.ism
Sun Feb 21, 2010 5:26 am
tower of troy
by adam15 »
S is the infinite sequence S1 = 2, S2 = 22, S3 = 222,...Sk =...
7
Last post by abhi332
Sun Feb 21, 2010 4:59 am
Advanced Probability
by Aman verma »
Q: Each coefficient in the equation ax^2 + bx + c = 0 is determined...
5
Last post by shashank.ism
Sun Feb 21, 2010 1:08 am
motoryclists
by shashank.ism »
2 motorcyclists are travelling at a speed of 3 km/hr and 10 km/hr...
8
Last post by gmattarget700
Sun Feb 21, 2010 12:05 am
Airline
by shashank.ism »
An airline has a certain free luggage allowance and charges for...
3
Last post by shashank.ism
Sat Feb 20, 2010 11:45 pm
Six numbers
by shashank.ism »
Six numbers a, b, c, d, e, f are such that a.b = 1, b.c =1/2, c.d =...
4
Last post by shashank.ism
Sat Feb 20, 2010 11:22 pm
Friends
by shashank.ism »
Abhash, Balu, Chandan and Dinesh are 4 friends each of whom weighs...
5
Last post by Stuart@KaplanGMAT
Sat Feb 20, 2010 10:23 pm
remaining men/total population
by bhumika.k.shah »
Currently, y percent of the members on the finance committee are...
6
Last post by bhumika.k.shah
Sat Feb 20, 2010 9:10 pm
distinct numbers
by shashank.ism »
There are nine distinct numbers of which five numbers are positive...
1
Last post by ajith
Sat Feb 20, 2010 8:58 pm