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SD
by shashank.ism » Tue Feb 09, 2010 12:22 pm
What is the standard deviation (SD) of the four numbers p, q, r, s?...
1
Last post by harsh.champ
Tue Feb 09, 2010 12:25 pm
Tue Feb 09, 2010 12:25 pm
X,Y
by shashank.ism » Tue Feb 09, 2010 12:21 pm
What is the value of X, if X and Y are two distinct integers and...
1
Last post by harsh.champ
Tue Feb 09, 2010 12:23 pm
Tue Feb 09, 2010 12:23 pm
siblings
by shashank.ism » Tue Feb 09, 2010 12:03 pm
There are exactly three pairs of siblings among ten children namely...
1
Last post by harsh.champ
Tue Feb 09, 2010 12:07 pm
Tue Feb 09, 2010 12:07 pm
GMATFocus Q3 - Coordinate Geometry
by frizo » Wed Feb 11, 2009 10:24 pm
If Line K in th xy-plane has equation y=mx+b, where m and b are...
6
Last post by stufigol
Tue Feb 09, 2010 11:03 am
Tue Feb 09, 2010 11:03 am
P,Q,R,S
by harsh.champ » Tue Feb 09, 2010 5:43 am
What is the value of (2P + Q) if it is divisible by 4? (Here, each of...
2
Last post by ajith
Tue Feb 09, 2010 7:29 am
Tue Feb 09, 2010 7:29 am
Siblings
by harsh.champ » Tue Feb 09, 2010 5:27 am
F and M are father and mother of S, respectively. S has four uncles...
1
Last post by shashank.ism
Tue Feb 09, 2010 6:39 am
Tue Feb 09, 2010 6:39 am
A and B race
by harsh.champ » Tue Feb 09, 2010 5:30 am
If A and B run a race, then A wins by 60 seconds. If B and C run the...
1
Last post by shashank.ism
Tue Feb 09, 2010 6:35 am
Tue Feb 09, 2010 6:35 am
Coin toss
by harsh.champ » Tue Feb 09, 2010 5:28 am
A game consists of tossing a coin successively. There is an entry fee...
1
Last post by shashank.ism
Tue Feb 09, 2010 6:27 am
Tue Feb 09, 2010 6:27 am
Age of Father
by harsh.champ » Tue Feb 09, 2010 5:32 am
There are five members in a family - three children and their...
1
Last post by shashank.ism
Tue Feb 09, 2010 6:17 am
Tue Feb 09, 2010 6:17 am
DS-Five products
by harsh.champ » Tue Feb 09, 2010 5:52 am
A company launched five products namely X, Y, K, Z and W in five...
1
Last post by shashank.ism
Tue Feb 09, 2010 6:15 am
Tue Feb 09, 2010 6:15 am
Contestants in 100m Relay Race
by harsh.champ » Tue Feb 09, 2010 5:32 am
P, Q and R are three contestants, and they are participating in 100 m...
1
Last post by shashank.ism
Tue Feb 09, 2010 6:01 am
Tue Feb 09, 2010 6:01 am
collection of tough problems from G PREP - 28
by abhasjha » Mon Feb 08, 2010 3:15 am
If x is a positive number less than 10, is z greater than the average...
3
Last post by sanju09
Tue Feb 09, 2010 5:29 am
Tue Feb 09, 2010 5:29 am
collection of tough problems from G PREP - 32
by abhasjha » Mon Feb 08, 2010 3:25 am
Set S consists of five consecutive integers, and set T consists of...
8
Last post by sanju09
Tue Feb 09, 2010 4:55 am
Tue Feb 09, 2010 4:55 am
collection of tough problems from G PREP - 42
by abhasjha » Mon Feb 08, 2010 3:38 am
If x and y are integers greater than 1, is x a multiple of y? (1)...
4
Last post by ajith
Tue Feb 09, 2010 4:25 am
Tue Feb 09, 2010 4:25 am
collection of tough problems from G PREP - 25
by abhasjha » Mon Feb 08, 2010 3:12 am
A certain military vehicle can run on pure Fuel X, pure Fuel Y, or...
2
Last post by ajith
Tue Feb 09, 2010 4:18 am
Tue Feb 09, 2010 4:18 am
collection of tough problems from G PREP - 26
by abhasjha » Mon Feb 08, 2010 3:13 am
How many odd integers are greater than the integer x and less than...
2
Last post by ajith
Tue Feb 09, 2010 4:02 am
Tue Feb 09, 2010 4:02 am
collection of tough problems from G PREP - 39
by abhasjha » Mon Feb 08, 2010 3:33 am
In a certain conference room each row of chairs has the same number...
2
Last post by ajith
Tue Feb 09, 2010 3:22 am
Tue Feb 09, 2010 3:22 am
mod inequality
by gmatnmein2010 » Mon Feb 08, 2010 5:39 am
If a and b are integers, and a not= b, is |a|b > 0? (1) |a^b| >...
4
Last post by ajith
Tue Feb 09, 2010 3:20 am
Tue Feb 09, 2010 3:20 am
collection of tough problems from G PREP - 35
by abhasjha » Mon Feb 08, 2010 3:28 am
JASON'S SALARY AND KAREN'S SALARY WERE EACH P PERCENT GREATER IN 1998...
3
Last post by ajith
Tue Feb 09, 2010 3:17 am
Tue Feb 09, 2010 3:17 am
collection of tough problems from G PREP - 36
by abhasjha » Mon Feb 08, 2010 3:30 am
If k is a positive integer, is K the square of an integer? 1) k is...
3
Last post by ajith
Tue Feb 09, 2010 3:13 am
Tue Feb 09, 2010 3:13 am
quadratic eqn
by gmatnmein2010 » Mon Feb 08, 2010 5:38 am
If b, c, and d are constants and x^2 + bx + c = (x + d)^2 for all...
4
Last post by ajith
Tue Feb 09, 2010 2:59 am
Tue Feb 09, 2010 2:59 am
collection of tough problems from G PREP - 33
by abhasjha » Mon Feb 08, 2010 3:26 am
If p is a positive odd integer, what is the remainder when p is...
4
Last post by ajith
Tue Feb 09, 2010 2:14 am
Tue Feb 09, 2010 2:14 am
Tricky ones
by raju232007 » Mon Feb 08, 2010 7:46 am
1.Two typists Mia and Gerard work alternatively on a typewriter, one...
7
Last post by raisethebar
Tue Feb 09, 2010 2:05 am
Tue Feb 09, 2010 2:05 am
collection of tough problems from G PREP - 31
by abhasjha » Mon Feb 08, 2010 3:22 am
Machines X and Y produced identical bottles at different constant...
3
Last post by ajith
Tue Feb 09, 2010 1:17 am
Tue Feb 09, 2010 1:17 am
collection of tough problems from G PREP - 40
by abhasjha » Mon Feb 08, 2010 3:34 am
If w, x, y, and z are integers such that w/x and y/z are integers, is...
3
Last post by ajith
Tue Feb 09, 2010 1:10 am
Tue Feb 09, 2010 1:10 am
collection of tough problems from G PREP - 38
by abhasjha » Mon Feb 08, 2010 3:31 am
. In a certain year, the difference between Mary's and Jim's annual...
3
Last post by ajith
Tue Feb 09, 2010 1:07 am
Tue Feb 09, 2010 1:07 am
collection of tough problems from G PREP - 41
by abhasjha » Mon Feb 08, 2010 3:37 am
Rasheed bought two kinds of candy bars, chocolate and toffee, that...
2
Last post by ajith
Tue Feb 09, 2010 12:57 am
Tue Feb 09, 2010 12:57 am
Milkman
by harsh.champ » Mon Feb 08, 2010 4:49 am
A milkman has 25 small cans, all of which are completely filled with...
6
Last post by sanju09
Tue Feb 09, 2010 12:27 am
Tue Feb 09, 2010 12:27 am
collection of tough problems from G PREP - 27
by abhasjha » Mon Feb 08, 2010 3:14 am
Are all of the numbers in a certain list of 15 numbers equal? (1) The...
4
Last post by harsh.champ
Mon Feb 08, 2010 11:43 pm
Mon Feb 08, 2010 11:43 pm
consecutive positive integers
by gmatnmein2010 » Mon Feb 08, 2010 5:38 am
The sum of n consecutive positive integers is 45. What is the value...
4
Last post by thephoenix
Mon Feb 08, 2010 10:43 am
Mon Feb 08, 2010 10:43 am
Remainder
by harsh.champ » Mon Feb 08, 2010 4:51 am
What is the remainder when P2 is divided by 12, where...
4
Last post by sanju09
Mon Feb 08, 2010 5:33 am
Mon Feb 08, 2010 5:33 am
collection of tough problems from G PREP - 30
by abhasjha » Mon Feb 08, 2010 3:21 am
At least 100 students at a certain school study Japanese. if 4 % of...
1
Last post by shashank.ism
Mon Feb 08, 2010 4:09 am
Mon Feb 08, 2010 4:09 am
collection of tough problems from G PREP - 12
by abhasjha » Sat Feb 06, 2010 5:29 am
During a 40-mile trip, Marla traveled at an average speed of x miles...
5
Last post by harsh.champ
Mon Feb 08, 2010 3:26 am
Mon Feb 08, 2010 3:26 am
collection of tough problems from G PREP - 21
by abhasjha » Sat Feb 06, 2010 5:39 am
Machine X and Y work at their respective constant rates. How many...
4
Last post by sanju09
Mon Feb 08, 2010 3:21 am
Mon Feb 08, 2010 3:21 am
collection of tough problems from G PREP - 23
by abhasjha » Mon Feb 08, 2010 3:05 am
A construction company was paid a total of $500,000 for a...
1
Last post by shashank.ism
Mon Feb 08, 2010 3:11 am
Mon Feb 08, 2010 3:11 am
collection of tough problems from G PREP - 7
by abhasjha » Sat Feb 06, 2010 5:23 am
Each employee on a certain task force is either a manager or a...
4
Last post by shashank.ism
Mon Feb 08, 2010 3:06 am
Mon Feb 08, 2010 3:06 am
Married People in City
by harsh.champ » Sun Feb 07, 2010 12:20 pm
Twenty five percent of the population of a city is married. The total...
3
Last post by harsh.champ
Mon Feb 08, 2010 2:59 am
Mon Feb 08, 2010 2:59 am
collection of tough problems from G PREP - 10
by abhasjha » Sat Feb 06, 2010 5:27 am
What is the greatest common divisor of positive integers m and n? 1)...
5
Last post by sanju09
Mon Feb 08, 2010 1:34 am
Mon Feb 08, 2010 1:34 am
collection of tough problems from G PREP - 22
by abhasjha » Sat Feb 06, 2010 5:41 am
If k is a positive integer and the tens digit of k+5 is 4, what is...
5
Last post by abhasjha
Mon Feb 08, 2010 12:36 am
Mon Feb 08, 2010 12:36 am
collection of tough problems from G PREP - 19
by abhasjha » Sat Feb 06, 2010 5:36 am
Of 200 members of a certain association each member who speaks German...
2
Last post by abhasjha
Mon Feb 08, 2010 12:34 am
Mon Feb 08, 2010 12:34 am
collection of tough problems from G PREP - 18
by abhasjha » Sat Feb 06, 2010 5:36 am
Over a certain time period, did the number of shares of stock in...
4
Last post by abhasjha
Mon Feb 08, 2010 12:33 am
Mon Feb 08, 2010 12:33 am
collection of tough problems from G PREP - 17
by abhasjha » Sat Feb 06, 2010 5:35 am
Of the 75 houses in a certain community, 48 have a patio. How many of...
2
Last post by abhasjha
Mon Feb 08, 2010 12:31 am
Mon Feb 08, 2010 12:31 am
collection of tough problems from G PREP - 16
by abhasjha » Sat Feb 06, 2010 5:34 am
If x, y, and z are integers and xy+z is an odd integer, is x an even...
4
Last post by abhasjha
Mon Feb 08, 2010 12:29 am
Mon Feb 08, 2010 12:29 am
collection of tough problems from G PREP - 15
by abhasjha » Sat Feb 06, 2010 5:32 am
Circle C and line K lie in the xy plane. If circle C is centered at...
3
Last post by abhasjha
Mon Feb 08, 2010 12:28 am
Mon Feb 08, 2010 12:28 am
collection of tough problems from G PREP - 14
by abhasjha » Sat Feb 06, 2010 5:32 am
Six countries in a certain region sent a total of 75 representatives...
4
Last post by abhasjha
Mon Feb 08, 2010 12:27 am
Mon Feb 08, 2010 12:27 am
collection of tough problems from G PREP - 11
by abhasjha » Sat Feb 06, 2010 5:28 am
If a < y < z < b, is abs(y-a) < abs(y-b)? 1. abs(z-a)...
2
Last post by abhasjha
Mon Feb 08, 2010 12:21 am
Mon Feb 08, 2010 12:21 am
collection of tough problems from G PREP - 9
by abhasjha » Sat Feb 06, 2010 5:25 am
If a, b, and c are integers, what is the value of a? (i)...
3
Last post by abhasjha
Mon Feb 08, 2010 12:19 am
Mon Feb 08, 2010 12:19 am
collection of tough problems from G PREP - 8
by abhasjha » Sat Feb 06, 2010 5:24 am
In a certain senior class, 72 percent of the male students and 80...
3
Last post by abhasjha
Mon Feb 08, 2010 12:16 am
Mon Feb 08, 2010 12:16 am
collection of tough problems from G PREP - 6
by abhasjha » Sat Feb 06, 2010 5:22 am
Is the integer n odd? 1. n is divisible by 3 2. 2n is divisible by...
6
Last post by abhasjha
Mon Feb 08, 2010 12:09 am
Mon Feb 08, 2010 12:09 am
collection of tough problems from G PREP - 5
by abhasjha » Sat Feb 06, 2010 5:21 am
A contractor combined x tons of a gravel mixture that contained 10%...
3
Last post by abhasjha
Mon Feb 08, 2010 12:05 am
Mon Feb 08, 2010 12:05 am
