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Data Sufficiency

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Each of the employees in a company is either a manager or a director. If a person is to be selected randomly...
by AAPL »
e-GMAT Each of the employees in a company is either a manager or a...
2
Last post by deloitte247
Sat Jul 11, 2020 5:57 am
Ted owns an electronics business and is calculating the price of a certain group of microwaves in the inventory he
by BTGmoderatorDC »
Ted owns an electronics business and is calculating the price of a...
0
Last post by BTGmoderatorDC
Fri Jul 10, 2020 7:00 pm
The lifetime of all the batteries produced by a certain company in a year have a distribution that is symmetric about
by BTGmoderatorDC »
The lifetime of all the batteries produced by a certain company in a...
1
Last post by deloitte247
Fri Jul 10, 2020 8:27 am
By how many years is Jason older than Allison?
by BTGModeratorVI »
By how many years is Jason older than Allison? (1) Jason is 6 years...
1
Last post by Brent@GMATPrepNow
Fri Jul 10, 2020 8:21 am
If n is a positive integer, is n odd?
by BTGModeratorVI »
If n is a positive integer, is n odd? (1) 3n is odd. (2) n + 3 is...
1
Last post by Brent@GMATPrepNow
Fri Jul 10, 2020 8:20 am
In an auditorium, 360 chairs are to be set up in a rectangular arrangement
by BTGModeratorVI »
In an auditorium, 360 chairs are to be set up in a rectangular...
1
Last post by Brent@GMATPrepNow
Fri Jul 10, 2020 8:19 am
If \(n\) is a positive integer, what is the tens digit of \(n ?\)
by Vincen »
If \(n\) is a positive integer, what is the tens digit of \(n ?\) (1)...
1
Last post by Brent@GMATPrepNow
Fri Jul 10, 2020 8:18 am
In the equation x^2 + 5x + k = 0, k is a constant and x is a variable. What is the value of k?
by AAPL »
Economist GMAT In the equation x^2 + 5x + k = 0, k is a constant and...
0
Last post by AAPL
Fri Jul 10, 2020 4:53 am
Paul, a painter, paints only flowers or cats in his notebook. The pictures are drawn in either regular pencil or...
by AAPL »
Economist GMAT Paul, a painter, paints only flowers or cats in his...
0
Last post by AAPL
Fri Jul 10, 2020 4:46 am
Is a two-digit positive integer \(xy,\) where \(x\) is the tens digit and \(y\) is the units digits, even?
by VJesus12 »
Is a two-digit positive integer \(xy,\) where \(x\) is the tens digit...
0
Last post by VJesus12
Fri Jul 10, 2020 3:28 am
What is the value of \(y?\)
by VJesus12 »
What is the value of \(y?\) (1) \(3|x^2 - 4| = y - 2\) (2) \(|3 - y|...
0
Last post by VJesus12
Fri Jul 10, 2020 3:26 am
If \(z^n = 1,\) what is the value of \(z?\)
by Vincen »
If \(z^n = 1,\) what is the value of \(z?\) (1) \(n\) is a non zero...
0
Last post by Vincen
Fri Jul 10, 2020 3:21 am
If \(a,b,c, d\) are distinct even integers and \(a\) is prime, is the four digit number \(abcd\) divisible by \(8?\)
by Vincen »
If \(a,b,c, d\) are distinct even integers and \(a\) is prime, is the...
0
Last post by Vincen
Fri Jul 10, 2020 3:10 am
Is \(x + y > 0 ?\)
by Vincen »
Is \(x + y > 0 ?\) (1) \(x - y > 0\) (2) \(x^2 - y^2 > 0\)...
0
Last post by Vincen
Fri Jul 10, 2020 2:58 am
If \(x\) and \(y\) are integers and \(xy\) does not equal \(0,\) is \(xy < 0?\)
by Vincen »
If \(x\) and \(y\) are integers and \(xy\) does not equal \(0,\) is...
0
Last post by Vincen
Fri Jul 10, 2020 2:49 am
What is the units digit of positive integer \(y?\)
by Vincen »
What is the units digit of positive integer \(y?\) (1) The units...
0
Last post by Vincen
Fri Jul 10, 2020 2:45 am
If \(wxy \ne 0,\) does \(x = y ?\)
by Vincen »
If \(wxy \ne 0,\) does \(x = y ?\) (1) \(w^x = w^y\) (2) \(wxy \ne...
0
Last post by Vincen
Fri Jul 10, 2020 2:43 am
If \(d\) is a decimal, is \(d \ge 1.55?\)
by Vincen »
If \(d\) is a decimal, is \(d \ge 1.55?\) (1) When \(d\) is rounded...
0
Last post by Vincen
Fri Jul 10, 2020 2:39 am
If \(a\) and \(b\) are integers, is \(a + b + 3\) an odd integer?
by Vincen »
If \(a\) and \(b\) are integers, is \(a + b + 3\) an odd integer? (1)...
0
Last post by Vincen
Fri Jul 10, 2020 2:35 am
How many factors does \(x\) have, if \(x\) is a positive integer?
by Vincen »
How many factors does \(x\) have, if \(x\) is a positive integer? (1)...
0
Last post by Vincen
Fri Jul 10, 2020 2:32 am
What is the length of segment \(BC?\)
by Vincen »
unknownleg.jpg What is the length of segment \(BC?\) (1) Angle...
0
Last post by Vincen
Fri Jul 10, 2020 2:27 am
What is the volume of the cube above?
by Vincen »
1026203817.jpg What is the volume of the cube above? (1) The surface...
0
Last post by Vincen
Fri Jul 10, 2020 2:24 am
If \(a, b,\) and \(c\) are positive, is \(a > b?\)
by Vincen »
If \(a, b,\) and \(c\) are positive, is \(a > b?\) (1)...
0
Last post by Vincen
Fri Jul 10, 2020 2:20 am
P is a positive integer greater than 3. Is P + 1 a multiple of 6?
by Max@Math Revolution »
P is a positive integer greater than 3. Is P + 1 a multiple of 6? 1)...
1
Last post by Max@Math Revolution
Fri Jul 10, 2020 12:58 am
What is the ratio of y to x?
by BTGmoderatorDC »
What is the ratio of y to x? (1) y = 3x (2) x = 11 OA C Source:...
1
Last post by Jay@ManhattanReview
Thu Jul 09, 2020 8:55 pm
Tami purchased several identically priced metal frames and
by BTGModeratorVI »
Tami purchased several identically priced metal frames and several...
1
Last post by Brent@GMATPrepNow
Thu Jul 09, 2020 5:14 am
What is the median of the data set S that consists of the integers 17, 29, 10, 26, 15, and x ?
by BTGModeratorVI »
What is the median of the data set S that consists of the integers...
1
Last post by Brent@GMATPrepNow
Thu Jul 09, 2020 5:14 am
A, B, C, and D are points on a line. If C is the midpoint of line segment AB and
by BTGModeratorVI »
A, B, C, and D are points on a line. If C is the midpoint of line...
1
Last post by Brent@GMATPrepNow
Thu Jul 09, 2020 5:14 am
A positive integer n has 3 prime factors. Is n odd?
by AAPL »
e-GMAT A positive integer n has 3 prime factors. Is n odd? 1) The...
0
Last post by AAPL
Thu Jul 09, 2020 3:49 am
Set A is given as {1, 2, 3, … , n} and n is a positive integer. What is the value of n?
by Max@Math Revolution »
Set A is given as {1, 2, 3, … , n} and n is a positive integer....
1
Last post by Max@Math Revolution
Thu Jul 09, 2020 2:17 am
Two racecar drivers, Abernathy and Berdoff, are driving around a circular track. If Abernathy is 200 meters behind
by BTGmoderatorDC »
Two racecar drivers, Abernathy and Berdoff, are driving around a...
2
Last post by [email protected]
Wed Jul 08, 2020 11:25 am
Pablo plays 3 rounds of a game, in which his chances of winning each round are
by BTGModeratorVI »
Pablo plays 3 rounds of a game, in which his chances of winning each...
1
Last post by Brent@GMATPrepNow
Wed Jul 08, 2020 5:39 am
If a, b, and c are consecutive integers, such that a < b < c, is their sum even?
by BTGModeratorVI »
If a, b, and c are consecutive integers, such that a < b < c,...
1
Last post by Brent@GMATPrepNow
Wed Jul 08, 2020 5:38 am
What was the percent increase in the population of City K from 1980 to 1990 ?
by BTGModeratorVI »
What was the percent increase in the population of City K from 1980...
1
Last post by Brent@GMATPrepNow
Wed Jul 08, 2020 5:37 am
The figure shows square ABCD and 2 lines, BP and BQ. Are triangles ABP and CBQ c
by Max@Math Revolution »
7.6DS.png The figure shows square ABCD and 2 lines, BP and BQ. Are...
1
Last post by Max@Math Revolution
Tue Jul 07, 2020 11:14 pm
Max purchased a guitar for a total of $624,which consisted of the price of the guitar and the sales tax.Was the sales ta
by BTGModeratorVI »
Max purchased a guitar for a total of $624,which consisted of the...
1
Last post by Brent@GMATPrepNow
Tue Jul 07, 2020 7:44 am
Set P has n integers. What is the standard deviation of Set P?
by BTGModeratorVI »
Set P has n integers. What is the standard deviation of Set P? (1)...
1
Last post by Brent@GMATPrepNow
Tue Jul 07, 2020 7:44 am
The sum of the first 100 positive integers is 5,050. What is the sum of the first 200 positive integers?
by BTGModeratorVI »
The sum of the first 100 positive integers is 5,050. What is the sum...
2
Last post by Brent@GMATPrepNow
Tue Jul 07, 2020 7:42 am
A box contains some pens, which are either fountain pens or ball pens. Each pen is also either blue or black in color...
by AAPL »
e-GMAT A box contains some pens, which are either fountain pens or...
1
Last post by Jay@ManhattanReview
Tue Jul 07, 2020 1:26 am
What was Bill's average speed on his trip of 250 miles from New York City to...
by BTGmoderatorLU »
Source: Manhattan Prep What was Bill's average speed on his trip of...
1
Last post by Jay@ManhattanReview
Tue Jul 07, 2020 1:17 am
A mixture of oil, water, and vinegar contains 10% oil. After all the water evaporates, what percent of the...
by BTGmoderatorLU »
Source: Manhattan Prep A mixture of oil, water, and vinegar contains...
1
Last post by Jay@ManhattanReview
Tue Jul 07, 2020 1:08 am
Of the four numbers represented on the number line above, is r closest to zero?
by BTGmoderatorDC »
Number line.jpg Of the four numbers represented on the number line...
1
Last post by Jay@ManhattanReview
Tue Jul 07, 2020 12:57 am
Statistics and Sets Problems
by swerve »
The students in two classes of Underachiever high school took a test....
0
Last post by swerve
Mon Jul 06, 2020 11:28 am
Overlapping Sets
by swerve »
A certain store sells two models of cellular phones, M1 and M2, and...
0
Last post by swerve
Mon Jul 06, 2020 11:21 am
The total cost to charter a bus was shared equally by the people who went on a certain trip.
by BTGModeratorVI »
The total cost to charter a bus was shared equally by the people who...
1
Last post by Brent@GMATPrepNow
Mon Jul 06, 2020 8:24 am
The symbols $ and # each represent one of the following operations: addition, subtraction, multiplication or division. W
by BTGModeratorVI »
The symbols $ and # each represent one of the following operations:...
2
Last post by Brent@GMATPrepNow
Mon Jul 06, 2020 8:23 am
How many of the 42 people in a group are employed students?
by BTGModeratorVI »
How many of the 42 people in a group are employed students? (1) 29 of...
2
Last post by Brent@GMATPrepNow
Mon Jul 06, 2020 8:22 am
The rectangular rug shown in the figure above has an accent border. What is the area of the portion of the...
by AAPL »
Official Guide 2015-10-25_2007.png The rectangular rug shown in the...
1
Last post by Jay@ManhattanReview
Mon Jul 06, 2020 1:11 am
At the beginning of 1990, Jon and Krista each purchased a certificate of deposit that paid the same rate of interest,
by BTGmoderatorDC »
At the beginning of 1990, Jon and Krista each purchased a certificate...
1
Last post by Jay@ManhattanReview
Mon Jul 06, 2020 12:22 am
From May 1 to May 30 in the same year, the balance in a checking account increased. What was the balance in the checking
by BTGmoderatorDC »
From May 1 to May 30 in the same year, the balance in a checking...
1
Last post by Jay@ManhattanReview
Sun Jul 05, 2020 11:06 pm