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Difficult Math Problem #114 - Combinations
by 800guy » Wed Apr 04, 2007 2:50 pm
A group of 8 friends want to play doubles tennis. How many different...
12
Last post by Brent@GMATPrepNow
Fri Nov 08, 2019 6:11 am
Fri Nov 08, 2019 6:11 am
The number line above represents which of the following
by swerve » Sat Nov 02, 2019 11:16 am
The number line above represents which of the following...
3
Last post by Brent@GMATPrepNow
Fri Nov 08, 2019 6:09 am
Fri Nov 08, 2019 6:09 am
What is the probability that out of the combinations that
by AAPL » Sat Nov 02, 2019 2:54 am
Economist GMAT What is the probability that out of the combinations...
2
Last post by deloitte247
Thu Nov 07, 2019 11:12 pm
Thu Nov 07, 2019 11:12 pm
The figure shows the square with a side length of 10 cm, and
by Max@Math Revolution » Wed Nov 06, 2019 12:46 am
The figure shows the square with a side length of 10 cm, and a...
1
Last post by Max@Math Revolution
Thu Nov 07, 2019 11:10 pm
Thu Nov 07, 2019 11:10 pm
700+ Challenge Problem, June 26, 2006
by Kevin » Mon Jun 26, 2006 8:16 am
Most of our students Manhattan GMAT are trying to break the 700+...
7
Last post by Scott@TargetTestPrep
Thu Nov 07, 2019 6:40 pm
Thu Nov 07, 2019 6:40 pm
ps 400 test7 #14
by dunkin77 » Fri Apr 06, 2007 1:10 pm
Hi, The answer is C) but I don't seem to get the same answer.... Can...
5
Last post by Scott@TargetTestPrep
Thu Nov 07, 2019 6:39 pm
Thu Nov 07, 2019 6:39 pm
What is the greatest prime factor
by BTGmoderatorDC » Mon Oct 30, 2017 6:27 am
$$What is the greatest prime factor of\ \ \left(2^4\right)^2\ -\ 1?$$...
3
Last post by Scott@TargetTestPrep
Thu Nov 07, 2019 6:38 pm
Thu Nov 07, 2019 6:38 pm
A coin is weighted so that the probability of heads on any
by AAPL » Wed Nov 06, 2019 2:14 am
Manhattan Prep A coin is weighted so that the probability of heads...
2
Last post by Scott@TargetTestPrep
Thu Nov 07, 2019 6:37 pm
Thu Nov 07, 2019 6:37 pm
The figure shows that the lines AB and AC are the tangential
by Max@Math Revolution » Tue Nov 05, 2019 12:03 am
The figure shows that the lines AB and AC are the tangential lines...
1
Last post by Max@Math Revolution
Wed Nov 06, 2019 11:29 pm
Wed Nov 06, 2019 11:29 pm
Brent is 18 years younger than Justin. If in 5 years Brent w
by ktrout2020 » Sun Nov 03, 2019 10:51 am
Brent is 18 years younger than Justin. If in 5 years Brent will be...
4
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:15 pm
Wed Nov 06, 2019 7:15 pm
Thirty five percent of the portfolios managed by the Crocodi
by ktrout2020 » Sun Nov 03, 2019 10:58 am
Thirty five percent of the portfolios managed by the Crocodile...
3
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:14 pm
Wed Nov 06, 2019 7:14 pm
Fifteen dots are evenly spaced on the circumference of a cir
by ktrout2020 » Sun Nov 03, 2019 10:43 am
Fifteen dots are evenly spaced on the circumference of a circle. How...
4
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:14 pm
Wed Nov 06, 2019 7:14 pm
In how many different ways can 3 identical green shirts and
by ktrout2020 » Sun Nov 03, 2019 10:41 am
In how many different ways can 3 identical green shirts and 3...
4
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:13 pm
Wed Nov 06, 2019 7:13 pm
Reggie purchased a car costing $8,700. As a down payment he
by swerve » Mon Nov 04, 2019 6:50 am
Reggie purchased a car costing $8,700. As a down payment, he used a...
2
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:13 pm
Wed Nov 06, 2019 7:13 pm
A code is to be made by arranging 7 letters. Three of the le
by ktrout2020 » Sun Nov 03, 2019 10:47 am
A code is to be made by arranging 7 letters. Three of the letters...
4
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:13 pm
Wed Nov 06, 2019 7:13 pm
In a survey on three products, A, B, and C, 50% of those
by swerve » Sun Nov 03, 2019 12:15 pm
In a survey on three products, A, B, and C, 50% of those surveyed...
3
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:12 pm
Wed Nov 06, 2019 7:12 pm
The king set a big party. Each guest had to wear either a
by AAPL » Mon Nov 04, 2019 10:06 am
Economist GMAT The king set a big party. Each guest had to wear...
2
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:12 pm
Wed Nov 06, 2019 7:12 pm
A machine manufactures notebooks in a series of...
by BTGmoderatorLU » Wed Nov 08, 2017 6:46 pm
A machine manufactures notebooks in a series of five colors: red,...
3
Last post by Scott@TargetTestPrep
Wed Nov 06, 2019 7:09 pm
Wed Nov 06, 2019 7:09 pm
15² − 63² + 27² − 22² + (54)(15) + (44)(63) =
by Brent@GMATPrepNow » Wed Nov 06, 2019 3:49 pm
15² − 63² + 27² − 22² + (54)(15) + (44)(63) =...
0
Last post by Brent@GMATPrepNow
Wed Nov 06, 2019 3:49 pm
Wed Nov 06, 2019 3:49 pm
The figure shows that l is parallel to m, ABCD is a square,
by Max@Math Revolution » Sun Nov 03, 2019 11:57 pm
The figure shows that l is parallel to m, ABCD is a square, and the...
1
Last post by Max@Math Revolution
Wed Nov 06, 2019 12:44 am
Wed Nov 06, 2019 12:44 am
Work rate problem - 2
by pratyoosh » Sun Nov 28, 2010 1:59 pm
Q. Lindsay can paint 1/x of a certain room in 20 minutes. What...
4
Last post by [email protected]
Tue Nov 05, 2019 11:01 am
Tue Nov 05, 2019 11:01 am
In the figure above, the two squares region have areas 16
by BTGmoderatorLU » Tue Nov 05, 2019 7:54 am
Source: GMAT Paper Tests In the figure above, the two squares have...
1
Last post by [email protected]
Tue Nov 05, 2019 10:55 am
Tue Nov 05, 2019 10:55 am
At the end of each year, the value of a certain antique watc
by imane81 » Mon Feb 15, 2010 2:44 pm
Please advise on this one.. thank you At the end of each year, the...
10
Last post by Brent@GMATPrepNow
Tue Nov 05, 2019 6:18 am
Tue Nov 05, 2019 6:18 am
A number is selected at random from the first 30 natural
by BTGmoderatorLU » Sun Nov 03, 2019 4:12 am
Source: Economist GMAT A number is selected at random from the first...
1
Last post by Jay@ManhattanReview
Mon Nov 04, 2019 11:07 pm
Mon Nov 04, 2019 11:07 pm
If \(T\) dividd by \(B\) equals 8.12 what is a possible
by BTGmoderatorLU » Wed Oct 30, 2019 1:46 pm
Source: Manhattan Prep If \(T\) divided by \(B\) equals 8.12 what is...
2
Last post by [email protected]
Mon Nov 04, 2019 9:30 am
Mon Nov 04, 2019 9:30 am
A travel agent offers a vacation plan which costs z dollars
by AAPL » Fri Nov 03, 2017 7:53 am
A travel agent offers a vacation plan which costs z dollars for the...
3
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:37 pm
Sun Nov 03, 2019 7:37 pm
Airplanes A and B traveled the same 360-mile route...
by BTGmoderatorLU » Fri Nov 03, 2017 9:29 am
Airplanes A and B traveled the same 360-mile route. If airplane A...
3
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:37 pm
Sun Nov 03, 2019 7:37 pm
(2^(4-1)^2)/(2^(3-2))
by Vincen » Fri Nov 10, 2017 6:12 am
$$\frac{2^{\left(4-1\right)^2}}{2^{\left(3-2\right)}}=0$$ A. 2^8 B....
3
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:34 pm
Sun Nov 03, 2019 7:34 pm
Pipe A runs 30 liters of water per minute into a pool that h
by BTGmoderatorAT » Thu Nov 09, 2017 4:33 pm
Pipe A runs 30 liters of water per minute into a pool that has a...
3
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:33 pm
Sun Nov 03, 2019 7:33 pm
In a town of 8,000 residents, 65 percent of all residents ow
by ktrout2020 » Thu Oct 31, 2019 6:17 am
In a town of 8,000 residents, 65 percent of all residents own a car,...
2
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:33 pm
Sun Nov 03, 2019 7:33 pm
Jessica can text 85 words per minute, while Maurice can text
by ktrout2020 » Thu Oct 31, 2019 6:24 am
Jessica can text 85 words per minute, while Maurice can text 10 words...
3
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:32 pm
Sun Nov 03, 2019 7:32 pm
The inflation index in Canada for the year 2008 relative to
by AAPL » Thu Oct 31, 2019 6:25 am
Princeton Review The inflation index in Canada for the year 2008...
2
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:32 pm
Sun Nov 03, 2019 7:32 pm
Machine A takes 10 hours to complete a certain job and start
by ktrout2020 » Thu Oct 31, 2019 6:27 am
Machine A takes 10 hours to complete a certain job and starts that...
3
Last post by Scott@TargetTestPrep
Sun Nov 03, 2019 7:31 pm
Sun Nov 03, 2019 7:31 pm
If a=2^x, f(a) denotes x. What is the value of (2^{4(m-2)}/
by Max@Math Revolution » Fri Nov 01, 2019 1:34 am
If a=2^x, f(a) denotes x. What is the value of...
1
Last post by Max@Math Revolution
Sun Nov 03, 2019 6:19 pm
Sun Nov 03, 2019 6:19 pm
An inner angle of an n-regular polygon is a positive integer
by Max@Math Revolution » Thu Oct 31, 2019 12:03 am
An inner angle of an n-regular polygon is a positive integer. How...
2
Last post by Max@Math Revolution
Sun Nov 03, 2019 6:18 pm
Sun Nov 03, 2019 6:18 pm
Let function # be defined as follows:
by AAPL » Wed Nov 01, 2017 8:24 am
Let function f be defined as follows:...
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 7:06 pm
Fri Nov 01, 2019 7:06 pm
The School of Architecture at Augury University had...
by AAPL » Wed Nov 01, 2017 8:14 am
The School of Architecture at Augury University had 300 applicants...
3
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 7:05 pm
Fri Nov 01, 2019 7:05 pm
G(x) is the greatest integer less than or equal to x...
by swerve » Wed Nov 01, 2017 9:40 am
G(x) is the greatest integer less than or equal to x and L(x) is the...
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 7:04 pm
Fri Nov 01, 2019 7:04 pm
What is the greatest value of x such that 5^x is a factor...
by swerve » Wed Nov 01, 2017 9:33 am
What is the greatest value of x such that 5^x is a factor of 25! ? A....
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 7:03 pm
Fri Nov 01, 2019 7:03 pm
What is the greatest value of x such that 3^x is a factor...
by BTGmoderatorLU » Wed Nov 01, 2017 9:52 am
What is the greatest value of x such that 3^x is a factor of 18!? A....
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 7:03 pm
Fri Nov 01, 2019 7:03 pm
In a group of students, 5 participate in no after school...
by AAPL » Wed Nov 01, 2017 8:12 am
In a group of students, 5 participate in no after school activities...
4
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 7:02 pm
Fri Nov 01, 2019 7:02 pm
Which of the following sets has the smallest...
by swerve » Wed Nov 01, 2017 9:37 am
Which of the following sets has the smallest standard deviation? A....
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 7:02 pm
Fri Nov 01, 2019 7:02 pm
In the fllowing equation, what is the value of n ?
by swerve » Thu Nov 02, 2017 7:46 am
In the fllowing equation, what is the value of n ?...
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 6:56 pm
Fri Nov 01, 2019 6:56 pm
What is the remainder when 2^28 is divided by 3?
by swerve » Wed Nov 01, 2017 9:31 am
What is the remainder when 2^28 is divided by 3? A. 1 B. 2 C. 3 D. 4...
3
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 6:55 pm
Fri Nov 01, 2019 6:55 pm
What is the probability of rolling three fair...
by swerve » Wed Nov 01, 2017 9:42 am
What is the probability of rolling three fair dice and having all...
3
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 6:54 pm
Fri Nov 01, 2019 6:54 pm
is closest in value to
by Vincen » Mon Oct 23, 2017 7:01 pm
$$\sqrt{4.8\cdot10^9}$$ is closest in value to (A) 2,200 (B) 70,000...
5
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 6:54 pm
Fri Nov 01, 2019 6:54 pm
If n=2^5*3^4*5^3*7^2*11, how many factors of...
by AAPL » Wed Nov 01, 2017 8:28 am
If $$n=2^5*3^4*5^3*7^2*11$$ how many factors of n are there? A. 180...
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 6:53 pm
Fri Nov 01, 2019 6:53 pm
Probability
by BTGmoderatorRO » Thu Nov 02, 2017 11:39 am
A bag contains 3 red, 4 black and 2 white balls. What is the...
2
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 6:51 pm
Fri Nov 01, 2019 6:51 pm
Which of the following are/is prime?
by VJesus12 » Wed Nov 08, 2017 8:01 am
Which of the following are/is prime? I. 143 II. 147 III. 149 (A) II...
4
Last post by Scott@TargetTestPrep
Fri Nov 01, 2019 6:50 pm
Fri Nov 01, 2019 6:50 pm
