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Is the standard deviation of set Q equal to 0?
by AAPL »
Economist GMAT Is the standard deviation of set Q equal to 0? 1) The...
1
Last post by Ian Stewart
Tue Feb 11, 2020 1:33 pm
At the start of 2015, Jane opened two new accounts – X and Y – to invest her total savings of $1000. She invested
by BTGmoderatorDC »
At the start of 2015, Jane opened two new accounts - X and Y - to...
1
Last post by Ian Stewart
Tue Feb 11, 2020 1:15 pm
Eco Wildlife Preserve contains 5x zebras and 2x lions, where x is a positive integer...
by AAPL »
Manhattan Prep Eco Wildlife Preserve contains 5 x zebras and 2 x...
2
Last post by Jay@ManhattanReview
Mon Feb 10, 2020 10:05 pm
How many integers are there between, but not including,
by BTGmoderatorDC »
How many integers are there between, but not including, integers r...
4
Last post by Brent@GMATPrepNow
Mon Feb 10, 2020 7:59 am
The figure below shows the dimensions of triangle
by Max@Math Revolution »
The figure below shows the dimensions of triangle ABC. What is...
1
Last post by Max@Math Revolution
Mon Feb 10, 2020 12:54 am
At a certain company, each employee has either an office or a cubicle. If each office or cubicle is occupied by exactly
by BTGmoderatorDC »
At a certain company, each employee has either an office or a...
1
Last post by Jay@ManhattanReview
Sun Feb 09, 2020 11:24 pm
<x> denotes x - 10[x/10] and n is a positive integer. What is the value of <9^n - 1>? ([x] means the greatest integer l
by Max@Math Revolution »
<x> denotes x - 10 and n is a positive integer. What is the...
1
Last post by Max@Math Revolution
Sun Feb 09, 2020 5:17 pm
Number Properties
by swerve »
Set \(P\) consists of the first \(n\) positive multiples of \(3\) and...
1
Last post by deloitte247
Sun Feb 09, 2020 12:15 pm
A seller sells his rice at cost price but uses a faulty weighing machine. The weighing machine reads a% less than that
by BTGmoderatorDC »
A seller sells his rice at cost price but uses a faulty weighing...
1
Last post by deloitte247
Sun Feb 09, 2020 8:48 am
The base of the roof of a building has a pentagonal shape. The roof is constructed as a regular...
by AAPL »
Manhattan Prep The base of the roof of a building has a pentagonal...
1
Last post by deloitte247
Sat Feb 08, 2020 2:31 pm
What is the value of [x] + [-x]? ([x] means the greatest integer less than o
by Max@Math Revolution »
What is the value of + ? ( means the greatest integer less than or...
2
Last post by deloitte247
Sat Feb 08, 2020 12:45 am
Of the 48 students in a class, 16 like to study History...
by BTGmoderatorLU »
Source: e-GMAT Of the 48 students in a class, 16 like to study...
2
Last post by deloitte247
Fri Feb 07, 2020 3:49 am
Set Q contains n non-zero numbers. Does set Q contain an even...
by BTGmoderatorLU »
Source: Economist GMAT Set Q contains n non-zero numbers. Does set Q...
1
Last post by Jay@ManhattanReview
Fri Feb 07, 2020 12:15 am
When 900 is divided by positive integer d, the remainder is r. For some integer N > 5000, when N is divided by positive
by BTGmoderatorDC »
When 900 is divided by positive integer d, the remainder is r. For...
1
Last post by Jay@ManhattanReview
Thu Feb 06, 2020 10:59 pm
The figure below shows the dimensions of triangle ABC. What is ∠BIC?
by Max@Math Revolution »
The figure below shows the dimensions of triangle ABC. What is...
1
Last post by Max@Math Revolution
Wed Feb 05, 2020 11:38 pm
How many people did the Apex Company employ in 1990?
by AAPL »
GMAT Paper Tests How many people did the Apex Company employ in...
1
Last post by Jay@ManhattanReview
Wed Feb 05, 2020 10:01 pm
Of the 800 sweaters in a certain store, 150 are red. How many of the red sweaters at the store are...
by BTGmoderatorLU »
Source: GMAT Prep Of the 800 sweaters in a certain store, 150 are...
1
Last post by Jay@ManhattanReview
Wed Feb 05, 2020 9:53 pm
When the digits of two-digit, positive integer M are reversed, the result is the two-digit, positive integer N.
by BTGmoderatorDC »
When the digits of two-digit, positive integer M are reversed, the...
1
Last post by Jay@ManhattanReview
Wed Feb 05, 2020 9:10 pm
The figure below shows the dimensions of the right triangle ABC with AB = 13, BC = 12, CA = 5 and I is a point inside tr
by Max@Math Revolution »
The figure below shows the dimensions of the right triangle ABC with...
1
Last post by Max@Math Revolution
Wed Feb 05, 2020 5:16 pm
If a and b are positive integers, 2 < a, and 0 < b < 10, is the hundreds digit of x a perfect cube?
by BTGmoderatorDC »
If a and b are positive integers, 2 < a, and 0 < b < 10, is...
1
Last post by swerve
Wed Feb 05, 2020 12:18 pm
Geometry
by swerve »
squirrelonwire_figure.PNG A squirrel climbs a straight wire from...
1
Last post by Jay@ManhattanReview
Mon Feb 03, 2020 10:27 pm
What was the average production rate of cups of espresso per machine...
by AAPL »
Economist GMAT What was the average production of cups of espresso...
1
Last post by Jay@ManhattanReview
Mon Feb 03, 2020 5:55 am
If a, b and c are positive, Is a+b+c>1?
by BTGmoderatorDC »
If a, b and c are positive, Is a+b+c>1? I. a>0.25 II....
1
Last post by Jay@ManhattanReview
Mon Feb 03, 2020 5:42 am
What is the standard deviation of a set of numbers whose...
by AAPL »
Economist GMAT What is the standard deviation of a set of numbers...
1
Last post by Jay@ManhattanReview
Mon Feb 03, 2020 5:27 am
For integers x, y, and z, x = y^2. What is the value of z?
by BTGmoderatorDC »
For integers x, y, and z, x = y^2. What is the value of z? (1) x =...
1
Last post by Jay@ManhattanReview
Sun Feb 02, 2020 10:07 pm
A total of 20 interns and 15 full-time employees work in the 35 offices of a company...
by AAPL »
Princeton Review A total of 20 interns and 15 full-time employees...
1
Last post by Jay@ManhattanReview
Sun Feb 02, 2020 10:00 pm
Triangles ABC and DEF are similar right triangles. if the hypotenuse of triangle DEF has a length of 20, what is...
by AAPL »
Manhattan Prep Triangles ACB and DEF are similar right triangles. if...
1
Last post by Jay@ManhattanReview
Sun Feb 02, 2020 9:40 pm
What is the value of [x]/(x - [x]) - x/([-x + 1] + x)? ([x] means the greatest integer less
by Max@Math Revolution »
What is the value of /(x - ) - x/( + x)? ( means the greatest...
1
Last post by Max@Math Revolution
Sun Feb 02, 2020 6:21 pm
The figure shows that ∠BAD is 30, and ∠CAE is 40. What is the measure of ∠ADE?
by Max@Math Revolution »
The figure shows that ∠BAD is 30, and ∠CAE is 40. What is the...
1
Last post by Max@Math Revolution
Sun Feb 02, 2020 6:19 pm
Is |x - y| > |x| - |y|? (1) y < x (2) xy < 0
by hazelnut01 »
Is |x - y| > |x| - |y|? (1) y < x (2) xy < 0 OA= B . Could...
6
Last post by Scott@TargetTestPrep
Sun Feb 02, 2020 2:10 pm
Combinations, Probability
by swerve »
The host of a television debate show has to select a 4-member...
1
Last post by deloitte247
Sun Feb 02, 2020 1:45 pm
M and N are two positive integers and each of them has 20 factors. If r is the total number of prime factors of M and
by BTGmoderatorDC »
M and N are two positive integers and each of them has 20 factors. If...
1
Last post by deloitte247
Sun Feb 02, 2020 12:32 pm
At the beginning of last month, a stationery store had in stock 250 writing pads...
by BTGmoderatorLU »
Source: GMAT Prep At the beginning of last month, a stationery store...
2
Last post by Scott@TargetTestPrep
Sun Feb 02, 2020 5:19 am
Statistics and Sets Problems
by swerve »
A new cell phone plan is offering to price based on average monthly...
1
Last post by deloitte247
Sun Feb 02, 2020 2:14 am
Jonathan would like to visit one of the 12 gyms in his area...
by BTGmoderatorLU »
Source: Manhattan Prep Jonathan would like to visit one of the 12...
1
Last post by deloitte247
Sat Feb 01, 2020 9:23 pm
A chef mixes P ounces of 60% sugar solution with Q ounces of a...
by BTGmoderatorLU »
Source: Magoosh A chef mixes P ounces of 60% sugar solution with Q...
2
Last post by deloitte247
Sat Feb 01, 2020 7:58 pm
Maryam's wallet contains a combination of $5 and $10 bills...
by BTGmoderatorLU »
Source: Manhattan Prep Maryam's wallet contains a combination of $5...
1
Last post by swerve
Sat Feb 01, 2020 1:56 pm
What is the value of the positive integer m ?
by BTGmoderatorDC »
What is the value of the positive integer m ? (1) When m is divided...
2
Last post by swerve
Sat Feb 01, 2020 1:45 pm
What is the remainder when integer n is divided by 10?
by BTGmoderatorDC »
What is the remainder when integer n is divided by 10? (1) When n is...
1
Last post by Brent@GMATPrepNow
Fri Jan 31, 2020 7:06 am
What is the length of CD in the figure?
by Max@Math Revolution »
What is the length of CD in the figure? 1.29ds.png 1) Point I is the...
1
Last post by Max@Math Revolution
Fri Jan 31, 2020 1:42 am
What is the perimeter of the triangle in the figure above?
by BTGmoderatorDC »
Untitled (1).png What is the perimeter of the triangle in the figure...
1
Last post by swerve
Thu Jan 30, 2020 3:48 pm
What is the measure of ∠BIC in the figure?
by Max@Math Revolution »
What is the measure of ∠BIC in the figure? 1.28ds.png 1) Point I...
1
Last post by Max@Math Revolution
Wed Jan 29, 2020 11:40 pm
If n is an integer, is n positive?
by gmattesttaker2 »
Hello, Can you please help with this: If n is an integer, is n...
12
Last post by Brent@GMATPrepNow
Wed Jan 29, 2020 12:25 pm
If mn ≠ 0, is m > n?
by BTGmoderatorDC »
If mn ≠ 0, is m > n? (1) 1/m < 1/n (2) m^2 > n^2 OA E...
2
Last post by Brent@GMATPrepNow
Wed Jan 29, 2020 12:21 pm
In the figure above, RST is a triangle with angle measures
by AbeNeedsAnswers »
In the figure above, RST is a triangle with angle measures as shown...
2
Last post by Brent@GMATPrepNow
Wed Jan 29, 2020 12:18 pm
DS: 2
by ILULA08 »
Q20: Lines k and m are parallel to each other. Is the slope of line k...
4
Last post by Brent@GMATPrepNow
Wed Jan 29, 2020 12:07 pm
What is the measure of ∠BOC in the figure?
by Max@Math Revolution »
What is the measure of ∠BOC in the figure? 1.27DS.png 1) Point O...
1
Last post by Max@Math Revolution
Tue Jan 28, 2020 11:49 pm
The volume of a rectangular box x inches wide, y inches long, and z inches high...
by BTGmoderatorLU »
Source: Manhattan Prep The volume of a rectangular box x inches...
1
Last post by Jay@ManhattanReview
Mon Jan 27, 2020 10:54 pm
If N is a positive integer, is
by BTGmoderatorDC »
If \(N\)\(\) is a positive integer, is \(N^3/4\) an integer? 1....
1
Last post by Jay@ManhattanReview
Mon Jan 27, 2020 10:36 pm
If x is an integer such that 79 < x < 86, what is the value of x?
by BTGmoderatorDC »
If x is an integer such that 79 < x < 86, what is the value of...
1
Last post by Jay@ManhattanReview
Mon Jan 27, 2020 9:49 pm