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Data Sufficiency

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Siblings
by harsh.champ »
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
A and B race
by harsh.champ »
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
Coin toss
by harsh.champ »
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
Age of Father
by harsh.champ »
There are five members in a family - three children and their...
1
Last post by shashank.ism
Tue Feb 09, 2010 6:17 am
DS-Five products
by harsh.champ »
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
Contestants in 100m Relay Race
by harsh.champ »
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
collection of tough problems from G PREP - 28
by abhasjha »
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
collection of tough problems from G PREP - 32
by abhasjha »
Set S consists of five consecutive integers, and set T consists of...
8
Last post by sanju09
Tue Feb 09, 2010 4:55 am
collection of tough problems from G PREP - 42
by abhasjha »
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
collection of tough problems from G PREP - 25
by abhasjha »
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
collection of tough problems from G PREP - 26
by abhasjha »
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
collection of tough problems from G PREP - 39
by abhasjha »
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
mod inequality
by gmatnmein2010 »
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
collection of tough problems from G PREP - 35
by abhasjha »
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
collection of tough problems from G PREP - 36
by abhasjha »
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
quadratic eqn
by gmatnmein2010 »
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
collection of tough problems from G PREP - 33
by abhasjha »
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
Tricky ones
by raju232007 »
1.Two typists Mia and Gerard work alternatively on a typewriter, one...
7
Last post by raisethebar
Tue Feb 09, 2010 2:05 am
collection of tough problems from G PREP - 31
by abhasjha »
Machines X and Y produced identical bottles at different constant...
3
Last post by ajith
Tue Feb 09, 2010 1:17 am
collection of tough problems from G PREP - 40
by abhasjha »
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
collection of tough problems from G PREP - 38
by abhasjha »
. 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
collection of tough problems from G PREP - 41
by abhasjha »
Rasheed bought two kinds of candy bars, chocolate and toffee, that...
2
Last post by ajith
Tue Feb 09, 2010 12:57 am
Milkman
by harsh.champ »
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
collection of tough problems from G PREP - 27
by abhasjha »
Are all of the numbers in a certain list of 15 numbers equal? (1) The...
4
EXPERT REPLIES
Last post by harsh.champ
Mon Feb 08, 2010 11:43 pm
consecutive positive integers
by gmatnmein2010 »
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
Remainder
by harsh.champ »
What is the remainder when P2 is divided by 12, where...
4
Last post by sanju09
Mon Feb 08, 2010 5:33 am
collection of tough problems from G PREP - 30
by abhasjha »
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
collection of tough problems from G PREP - 12
by abhasjha »
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
collection of tough problems from G PREP - 21
by abhasjha »
Machine X and Y work at their respective constant rates. How many...
4
Last post by sanju09
Mon Feb 08, 2010 3:21 am
collection of tough problems from G PREP - 23
by abhasjha »
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
collection of tough problems from G PREP - 7
by abhasjha »
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
Married People in City
by harsh.champ »
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
collection of tough problems from G PREP - 10
by abhasjha »
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
collection of tough problems from G PREP - 22
by abhasjha »
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
collection of tough problems from G PREP - 19
by abhasjha »
Of 200 members of a certain association each member who speaks German...
2
Last post by abhasjha
Mon Feb 08, 2010 12:34 am
collection of tough problems from G PREP - 18
by abhasjha »
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
collection of tough problems from G PREP - 17
by abhasjha »
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
collection of tough problems from G PREP - 16
by abhasjha »
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
collection of tough problems from G PREP - 15
by abhasjha »
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
collection of tough problems from G PREP - 14
by abhasjha »
Six countries in a certain region sent a total of 75 representatives...
4
Last post by abhasjha
Mon Feb 08, 2010 12:27 am
collection of tough problems from G PREP - 11
by abhasjha »
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
collection of tough problems from G PREP - 9
by abhasjha »
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
collection of tough problems from G PREP - 8
by abhasjha »
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
collection of tough problems from G PREP - 6
by abhasjha »
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
collection of tough problems from G PREP - 5
by abhasjha »
A contractor combined x tons of a gravel mixture that contained 10%...
3
Last post by abhasjha
Mon Feb 08, 2010 12:05 am
collection of tough problems from G PREP - 3
by abhasjha »
For each customer, a bakery charges p dollars for the 1st loaf of...
2
Last post by abhasjha
Mon Feb 08, 2010 12:03 am
collection of tough problems from G PREP -2
by abhasjha »
During a sale, a clothing store sold each shirt at a price of $15 and...
2
Last post by abhasjha
Mon Feb 08, 2010 12:01 am
collection of tough problems from G PREP -1
by abhasjha »
If w+x<0,? Is w-y>0 ? 1) x+y<0 2) y<x<w
3
Last post by abhasjha
Sun Feb 07, 2010 11:58 pm
Geometry
by harsh.champ »
The position of the line segment AB at time t = 0 is shown in the...
8
Last post by raisethebar
Sun Feb 07, 2010 10:18 pm
Family members
by harsh.champ »
There are five members in a family - three children and their...
2
Last post by onedayi'll
Sun Feb 07, 2010 8:29 pm