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Probability question :( [700+]
by voodoo_child »
Question - Bill has a small deck of 12 playing cards made up of only...
12
Last post by winniethepooh
Mon Jun 13, 2011 9:32 am
(-1)k+1(½k).
by Ahmed MS »
(-1)k+1(½k). T is the sum of the first 10 k, is t a. > 2 b....
3
EXPERT REPLIES
Last post by Ahmed MS
Mon Jun 13, 2011 9:05 am
If n is a multiple of 5 and n= p^2q ...
by qduong »
If n is a multiple of 5 and n= p^2q , where p and q are prime...
5
Last post by [email protected]
Mon Jun 13, 2011 6:15 am
Integer n
by vinayreguri »
if an integer is divisible by both 9 & 12, then it must be...
4
Last post by Roy@MasterGmat
Mon Jun 13, 2011 4:18 am
mgmat qn
by mirantdon »
x is the sum of y consecutive integers. w is the sum of z consecutive...
7
Last post by [email protected]
Mon Jun 13, 2011 3:24 am
Integers
by vinayreguri »
How many number of integers between 300 & 500, exclusive, are...
3
EXPERT REPLIES
Last post by Vish_
Mon Jun 13, 2011 3:17 am
Good problem- Exponents
by venmic »
This is a good problem to solve try it If n is a non-negative integer...
9
Last post by smackmartine
Sun Jun 12, 2011 10:40 pm
Sets sum
by [email protected] »
In a group of 68 students, each student is registered for at least...
6
Last post by [email protected]
Sun Jun 12, 2011 9:01 pm
chocolates and caramels
by krishnasty »
A candy assortment contains only chocolates and caramels. If there...
4
Last post by edvhou812
Sun Jun 12, 2011 8:58 pm
probability.. got the right answer but did i use wr medthod?
by what? »
A store buys 10 loaves of bread, including 7 baguettes. If that day,...
7
EXPERT REPLIES
Last post by what?
Sun Jun 12, 2011 11:24 am
Orange
by MBA.Aspirant »
By selling 45 oranges for Rs 160, a women loses 20%. How many oranges...
4
Last post by finites
Sun Jun 12, 2011 10:50 am
PS Q
by vinayreguri »
solve for x where |x-1|+|x+2|=5 OA : (2,-3)
7
EXPERT REPLIES
Last post by Frankenstein
Sun Jun 12, 2011 7:25 am
(Algebra) Simple question but I am confused.
by Rezinka »
Q If (x^2 + 4x + 4) / (x^2 - 4) = 3 ; then x = A. 4 B. 2 C. 0 D. -2...
12
EXPERT REPLIES
Last post by vinayreguri
Sun Jun 12, 2011 5:44 am
gmatprep
by g.shankaran »
for any +ve integer n, the length of n is defined as the number of...
4
Last post by Geva@EconomistGMAT
Sun Jun 12, 2011 4:36 am
Number properties
by Rajasamantray »
Problem - Find the greatest number, which will divide 215,167 and 135...
5
Last post by [email protected]
Sun Jun 12, 2011 2:06 am
rates
by divya23 »
a produces 9000 pencils /hr b 7000 p/h 2 mst produce 100000 pencils...
2
Last post by [email protected]
Sun Jun 12, 2011 1:29 am
For those needing help in Permutations and Combinations
by vinitrathi1 »
Read this link, save it if you like. Very helpful! Helped me a lot...
4
EXPERT REPLIES
Last post by vinitrathi1
Sat Jun 11, 2011 8:46 pm
MGMAT- PS
by bblast »
A cyclist travels the length of a bike path that is 225 miles long,...
10
EXPERT REPLIES
Last post by gmatdriller
Sat Jun 11, 2011 6:50 pm
Remainder problem
by raunekk »
Q) When a number is divided by 13, the remainder is 11. When the same...
13
EXPERT REPLIES
Last post by smackmartine
Sat Jun 11, 2011 4:45 pm
9 a factor of 2x
by venmic »
9 factor of 2x if 9 is a factor of 2x then which of the following may...
8
EXPERT REPLIES
Last post by smackmartine
Sat Jun 11, 2011 9:16 am
NUmber Prop
by nycknicks11 »
Is there a quick way to do this problem using number prop? (oops...
7
EXPERT REPLIES
Last post by Ian Stewart
Sat Jun 11, 2011 9:12 am
multiples
by divya23 »
if n is a +ve int and product of all d int from 1 to n inclusive is a...
4
EXPERT REPLIES
Last post by Anurag@Gurome
Fri Jun 10, 2011 10:37 pm
PROBLEM SOLVING
by dell2 »
The positive integers m and n leave remainders of 2 and...
4
Last post by cans
Fri Jun 10, 2011 9:13 pm
Permutaion
by SwatiDenre »
Let A, B and C denotes separate generic traits. Suppose the...
5
Last post by jainnikhil02
Fri Jun 10, 2011 8:56 pm
Permutaion
by SwatiDenre »
How many five letter words can be formed by picking 3 vowels and 2...
3
Last post by cans
Fri Jun 10, 2011 7:53 pm
inequalities doubt
by divya23 »
if 0<r<1<s<2 then is rs less than 1 ... please explain...
3
Last post by cans
Fri Jun 10, 2011 7:38 pm
mean median concept explain please :)
by divya23 »
A certain list of 100 data has mean of 6 and S.D = d and d = +ve...
3
Last post by pemdas
Fri Jun 10, 2011 7:06 pm
probability
by divya23 »
18 applicants are to be selected for 4 postions.how many different...
9
EXPERT REPLIES
Last post by Ian Stewart
Fri Jun 10, 2011 11:07 am
Combinatorics - 700+
by hja379 »
Can you please explain? I couldn't understand how to attack this...
8
Last post by Jayanth2689
Fri Jun 10, 2011 10:54 am
mensuration !!
by marmar29 »
hi all for ma information i stuck in ths problem althu i blv it s...
6
Last post by sunilrawat
Fri Jun 10, 2011 8:26 am
Venn diagram question
by alltimeacheiver »
Ques 80 Percent of the people in a party drinbk coffee, 10 percent of...
6
Last post by cans
Fri Jun 10, 2011 8:12 am
Please help me with this sum
by vinitrathi1 »
Q.In how many ways can 5 letters be posted in 3 post boxes, if any...
12
EXPERT REPLIES
Last post by cans
Fri Jun 10, 2011 6:42 am
positive integers
by phelps »
If x is the product of the positive integers from 1 to 8, inclusive,...
3
Last post by cans
Fri Jun 10, 2011 6:40 am
Joan
by nycknicks11 »
I brute force this. Is there a better way?
2
Last post by cans
Fri Jun 10, 2011 6:30 am
GMAT Prep Rates Problem
by tonebeeze »
A hiker walking at a constant rate of 4 miles per hour is passed by a...
5
Last post by cans
Fri Jun 10, 2011 6:25 am
tough knewton PS
by bblast »
Albert and Bob are painting rooms at constant, but different rates....
6
Last post by cans
Fri Jun 10, 2011 6:16 am
company
by phelps »
At a certain company, each ecmployee has a salary grade s that is at...
4
EXPERT REPLIES
Last post by cans
Fri Jun 10, 2011 6:03 am
Set problem
by jonbrazil »
One night a certain motel rented 3/4 of its rooms, including 2/3 of...
7
Last post by [email protected]
Fri Jun 10, 2011 4:17 am
triangles
by divya23 »
which of the foll list the no of points at which circl can intrsct a...
7
Last post by Vish_
Fri Jun 10, 2011 1:29 am
Function
by samp229 »
Help please If f(x) = |x| + |x - 2| then find the value of F(1.5) for...
13
EXPERT REPLIES
Last post by MBA.Aspirant
Thu Jun 09, 2011 7:57 pm
I have a question
by Ozlemg »
A certain music store stocks 800 cellos and 600 violas. Of these...
4
Last post by [email protected]
Thu Jun 09, 2011 6:37 pm
Difficult Math Question #6
by 800guy »
OA coming when a few people have answered... A and B ran a race of...
9
Last post by GMATGuruNY
Thu Jun 09, 2011 5:00 pm
circumf of circle
by g.shankaran »
Square S is inscribed in circle T. If the perimeter of S is 24, what...
5
Last post by Stuart@KaplanGMAT
Thu Jun 09, 2011 12:02 pm
probability
by g.shankaran »
{ -10, -6, -5, -4, -2.5, -1, 0, 2.5 , 4, 6, 7, 10 } A number is to be...
3
Last post by jainnikhil02
Thu Jun 09, 2011 11:57 am
OG-12 PS 130
by bblast »
suppose the line is shaded from -5 to +3 (both included). we are...
2
Last post by GMATGuruNY
Thu Jun 09, 2011 11:44 am
integers
by divya23 »
for any +ve int n length of n is defined as no . of prome factors...
3
Last post by Stuart@KaplanGMAT
Thu Jun 09, 2011 9:01 am
inequalities ..
by divya23 »
if y >/ 0 what is x |x-3|>/ y gretaer dan equal sign |x-3|\<...
1
Last post by cans
Thu Jun 09, 2011 8:55 am
Anybody - Shortest/fastest way to solve this one?
by Vishnu88 »
x, y, x + y, x - 4y, xy, 2y For the set of terms shown above, if y...
8
Last post by Stuart@KaplanGMAT
Thu Jun 09, 2011 8:52 am
lines and slopes
by divya23 »
in xy plane line k pass thru origin and thru (a,b) whr ab not equal =...
2
Last post by manpsingh87
Thu Jun 09, 2011 8:42 am
mean median
by divya23 »
mean = 21 s.d = 6 wat will b d value 1 and 2 s.d below d mean ans =...
1
Last post by cans
Thu Jun 09, 2011 8:22 am