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PR-4 Standard Deviation and Mean
by crackitpal »
Hello Everybody, Could anyone explain how to solve following problem?...
10
EXPERT REPLIES
Last post by fc135
Mon Oct 18, 2010 5:54 pm
b – [b - (b – a) – {b – (b + (b – a)) + 3 a}] =
by sanju09 »
b - = (A) 3 a (B) 3 a + b (C) 5 a (D) 5 a - b (E) 5 a...
3
Last post by Brian@VeritasPrep
Mon Oct 18, 2010 3:53 pm
digits ps problem?
by rtaha2412 »
A cashier mentally reversed the digits of one customer's correct...
2
Last post by Brian@VeritasPrep
Mon Oct 18, 2010 12:11 pm
Total Outcomes in Probability
by chrisjim5 »
On one side of a coin there is the number 0 and on the other side the...
3
EXPERT REPLIES
Last post by chrisjim5
Mon Oct 18, 2010 10:41 am
Probability Question
by chrisjim5 »
Here is a question: The employees of a certain company include...
9
Last post by shovan85
Mon Oct 18, 2010 7:51 am
Manhattan Probability tougie
by girishbtg »
Acc to me , as 2 of them ( A and M ) are fixed, So , 4C1 / 6 C 3 = 20...
4
Last post by GMATGuruNY
Mon Oct 18, 2010 6:49 am
5-digit positive integer
by goyalsau »
How many 5-digit positive integers exist where no two consecutive...
11
Last post by fskilnik@GMATH
Mon Oct 18, 2010 4:24 am
Stats + probability Amazing question!
by magnus opus »
Five cards are to be selected at random from 10 cards numbered from 1...
5
EXPERT REPLIES
Last post by magnus opus
Mon Oct 18, 2010 4:08 am
Problem I faced in Problem Solving (GMAT Prep Test)
by Rezinka »
For every positive integer n, the function h(n) is defined to be the...
5
Last post by fskilnik@GMATH
Mon Oct 18, 2010 3:38 am
gmAT PAPER CODE 28 S3 Q14,16
by rb90 »
Q14) In a certain school, 40 more than 31 of all the students are...
2
Last post by shovan85
Mon Oct 18, 2010 3:02 am
10 children, each group has 2 children. how many groups pos?
by phoenixhazard »
Sounds like such an easy question but I can't find how to do it fast...
4
Last post by Geva@EconomistGMAT
Mon Oct 18, 2010 2:39 am
Please check
by saurabhmahajan »
Hi Friends, I am currently working on permutation and combination...
2
EXPERT REPLIES
Last post by diebeatsthegmat
Mon Oct 18, 2010 2:19 am
Probability Problems (Confused!)
by thp510 »
I'm having problems with Probability Strategy . Can someone help...
7
Last post by thp510
Sun Oct 17, 2010 8:45 pm
Functions and graphs
by winnerhere »
Hi guys, A small doubt in functions and graphs If I want to reflect a...
1
Last post by fskilnik@GMATH
Sun Oct 17, 2010 5:11 pm
Nice probab. problem!
by fskilnik@GMATH »
Hi there, This problem may be done pretty quick and using only...
10
Last post by fskilnik@GMATH
Sun Oct 17, 2010 2:54 pm
For every positive integer n, the function h(n) is defined t
by imane81 »
Thank you for your input on this one For every positive integer n,...
4
Last post by vicksikand
Sun Oct 17, 2010 10:30 am
combinations - 5 girls 5 dolls - one constraint
by nabilqureshi »
Gordon buys 5 dolls for his five nieces. The gifts include two...
4
Last post by GMATGuruNY
Sun Oct 17, 2010 9:32 am
Lines and planes
by winnerhere »
Twelve straight lines are drawn i a plane such that no two of them...
3
Last post by winnerhere
Sun Oct 17, 2010 7:58 am
GMAT Prep - Functions
by anhe123 »
For every positive integer n, the function h(n) is defined to be the...
5
Last post by GMATGuruNY
Sun Oct 17, 2010 7:07 am
GMAT prep - two triangles areas
by anhe123 »
Added a screen shot so you could see the whole question. Thanks!
2
Last post by shovan85
Sat Oct 16, 2010 11:57 am
Consecutive Integers
by bfman »
Official Guide Ed 12. Page 236. Q 157. For any positive integer n ,...
6
Last post by Vorskl
Sat Oct 16, 2010 8:14 am
Work problem using smart number
by HPengineer »
Working this problem i got stuck trying to use a smart number. Any...
3
Last post by GMATGuruNY
Sat Oct 16, 2010 6:52 am
Chords and Radii
by skalevar »
If the radius of the circle above (see attachment) is equal to the...
2
Last post by skalevar
Sat Oct 16, 2010 5:05 am
Combination...
by thp510 »
This was an explanation from MGMAT that I'm having trouble trying to...
1
Last post by neerajkumar1_1
Sat Oct 16, 2010 1:20 am
Difficult Number Properties Question
by skalevar »
If x and y are integers and 2x-y =11, then 4x + y CANNOT Be? A. -5 B....
3
Last post by diebeatsthegmat
Fri Oct 15, 2010 6:46 pm
PS
by danjuma »
A certain meter records voltage between 0 and 10 volts inclusive. If...
1
Last post by uwhusky
Fri Oct 15, 2010 12:43 pm
solution X and Y
by charmaine »
Solution Y is 30 percent liquid X and 70 percent water. If 2...
4
Last post by GMATGuruNY
Fri Oct 15, 2010 12:28 pm
Y is 30 percent liquid X
by sanju09 »
Solution Y is 30 percent liquid X and 70 percent water. If 2...
4
Last post by GMATGuruNY
Fri Oct 15, 2010 8:30 am
price
by goyalsau »
The price of a bushel of corn is currently $3.20, and the price of a...
1
Last post by shovan85
Fri Oct 15, 2010 1:18 am
nor touched by a boy
by sanju09 »
There are p posts set at equal distance along an array, which are...
3
Last post by neerajkumar1_1
Fri Oct 15, 2010 12:06 am
Permutations, Combinations & Probablilty
by harikattamudi »
Dear Experts, Can someone please send me questions related to...
1
Last post by sanju09
Thu Oct 14, 2010 11:23 pm
Permutation/Combination Question
by focusgmat »
Source : GMATCLUB tests If there are four distinct pairs of brothers...
5
Last post by GMATGuruNY
Thu Oct 14, 2010 10:33 am
cannot lie between
by sanju09 »
Value of the expression (x^2 - x + 1)/ (x - 1) cannot lie between (A)...
4
Last post by fskilnik@GMATH
Thu Oct 14, 2010 4:59 am
Time/Travel Problem==PLEASE HELP!!
by Rod10159 »
Hi! Hoping someone can give me a clearer explanation than the book on...
3
Last post by fskilnik@GMATH
Thu Oct 14, 2010 4:39 am
Combinatronics2, MGMAT
by rb90 »
The OA is 20. I am getting 10 through 2C1*5C4. Please explain where...
2
Last post by GMATGuruNY
Thu Oct 14, 2010 3:04 am
Combinatronics, MGMAT
by rb90 »
The OA is 20. I am getting 10 thriugh 2C1*5C4. Please explain where...
3
Last post by rb90
Thu Oct 14, 2010 2:54 am
gud n tuf ...ques..
by vivek.kapoor83 »
13
Last post by Viktri
Wed Oct 13, 2010 10:51 pm
Maze problems
by replayyyy »
Has anyone ever encountered a maze problem on a real GMAT test ?...
3
Last post by sanju09
Wed Oct 13, 2010 10:49 pm
without rotating the axes
by sanju09 »
If origin O (0, 0) is shifted to (5, 2) without rotating the axes,...
4
Last post by sanju09
Wed Oct 13, 2010 9:23 pm
Gmat Prep-Seating arrangement
by lokesh r »
4
EXPERT REPLIES
Last post by lokesh r
Wed Oct 13, 2010 11:04 am
American measurement standard
by replayyyy »
Do I have to be familiar with all American units of measurement...
3
Last post by replayyyy
Wed Oct 13, 2010 9:09 am
S.W.A.T
by Aman verma »
Q: A S.W.A.T Team commando fired two rounds ( Bullets ) at an...
5
Last post by goyalsau
Wed Oct 13, 2010 9:05 am
GOOD MIXTURE SUM
by rb90 »
THE OA IS C Please help me out here, as i cant understand the...
6
Last post by hcueva
Wed Oct 13, 2010 6:47 am
Inequality
by shovan85 »
What is this Question asking. Please help on each options so I can...
7
Last post by fskilnik@GMATH
Wed Oct 13, 2010 6:25 am
easy Rate problem
by majorsheetal »
Joe Drives at 40 miles/hour to reach his office which is 240 miles...
1
Last post by sanju09
Wed Oct 13, 2010 12:55 am
Awful Photographer
by rabab »
A photographer will arrange 6 people of 6 different heights for...
5
Last post by duyhiep87
Wed Oct 13, 2010 12:22 am
power of 8
by sanju09 »
What power of 8 exactly divides 25!? (A) 5 (B) 6 (C) 7 (D) 8 (E) 9...
11
Last post by sanju09
Tue Oct 12, 2010 8:17 pm
PETER TOM JOHN WORK, MGMAT sum
by rb90 »
Tom, working alone, can paint a room in 6 hours. Peter and John,...
4
Last post by GMATGuruNY
Tue Oct 12, 2010 12:44 pm
percentage problem
by princessss »
Angela's grade was in the 90th percentile out of 80 grades in her...
5
Last post by princessss
Tue Oct 12, 2010 12:13 pm
sum of §n§^3 and ∫n∫^2 be -7.91
by sanju09 »
If §n§ represents the greatest integer just lower than n, and...
1
Last post by deepaks04
Tue Oct 12, 2010 6:24 am