Search found 269 matches
- by dunkin77
Sun Jun 17, 2007 4:20 pm- Forum: Problem Solving
- Topic: ps 17
- Replies: 3
- Views: 1751
- by dunkin77
Sun Jun 17, 2007 3:34 pm- Forum: Problem Solving
- Topic: ps 16
- Replies: 3
- Views: 1753
- by dunkin77
Sun Jun 17, 2007 12:49 pm- Forum: Problem Solving
- Topic: ps 19
- Replies: 3
- Views: 1626
ds question
What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. I dont have OA... ...
- by dunkin77
Sun Jun 17, 2007 9:32 am- Forum: Data Sufficiency
- Topic: ds question
- Replies: 2
- Views: 1832
ds question
p is an integer; n is an integer; and p/n is an integer. Is p/n odd?
(1) p is divisible by 4.
(2) n is divisible by 4.
I dont have answer...but is it E?
- by dunkin77
Sun Jun 17, 2007 9:31 am- Forum: Data Sufficiency
- Topic: ds question
- Replies: 1
- Views: 1668
ds 23
If n is a positive integer that is less than 10, what is the value of n?
(1) n is the tenth digit in the decimal representation of 1/n.
(2) n is the hundredth digit in the decimal representation of 1/n.
- by dunkin77
Sun Jun 17, 2007 9:15 am- Forum: Data Sufficiency
- Topic: ds 23
- Replies: 14
- Views: 3440
ps 23
A certain computer program generates a sequence of numbers a1, a2, … , an such that a1 = a2 = 1 and ak = ak-1 + 2ak-2 for all integers k such that 3 ≤ k ≤ n. If n > 6, then a7 = ? A. 32 B. 43 C. 64 D. 100 E. 128 I got it wrong..I think I did not understand the question well. Can ...
- by dunkin77
Sun Jun 17, 2007 9:01 am- Forum: Problem Solving
- Topic: ps 23
- Replies: 1
- Views: 2097
ps 19
If y is an integer and y = lXl + x, is y = 0?
(1) x < 0
(2) y < 1
I was for A but the answer is D. How can we answer the question that is asking if Y = 0 with 2) y<1 ?? because the answer is no to the question?
- by dunkin77
Sun Jun 17, 2007 8:56 am- Forum: Problem Solving
- Topic: ps 19
- Replies: 3
- Views: 1626
ps 17
If xy ≠ 0 and x^2y^2 – xy = 6, which of the following could be y in terms of x?
I. 1/(2x)
II. – 2/x
III. 3/x
A. I only
B. II only
C. I and II
D. I and III
E. II and III
I got x,y are 1/2 and 6 but could not find the answer...
- by dunkin77
Sun Jun 17, 2007 8:52 am- Forum: Problem Solving
- Topic: ps 17
- Replies: 3
- Views: 1751
ps 16
Meg and Bob are among the 5 participants in a cycling race. If each participant finishes the race and no two participants finish at the same time, in how many different possible orders can the participants finish the race so that Meg finishes ahead of Bob? A. 24 B. 30 C. 60 D. 90 E. 120 can anyone h...
- by dunkin77
Sun Jun 17, 2007 8:50 am- Forum: Problem Solving
- Topic: ps 16
- Replies: 3
- Views: 1753
ps 10
The figure shown represents a board with 4 rows of pegs, and at the bottom of the board are 4 cells numbered 1 to 4. Whenever the ball shown passes through the opening between two adjacent pegs in the same row, it will hit the peg directly beneath the opening. The ball then has the probability 1/2 o...
- by dunkin77
Sun Jun 17, 2007 8:48 am- Forum: Problem Solving
- Topic: ps 10
- Replies: 1
- Views: 1696
DS question
If n and t are positive integers, is n a factor of t?
(1) n = 3^n-z
(2) t = 3^n
Can anyone pls help?
- by dunkin77
Sun Jun 17, 2007 8:45 am- Forum: Data Sufficiency
- Topic: DS question
- Replies: 9
- Views: 2625
PS question
Which of the following is equal to [1/(√3-√2)]^2?
A. 1
B. 5
C. √6
D. 5 - √6
E. 5 + 2√6
Hi,
my answer was 5 + 2√6 / -19 .... not even in the choice. can anyone help?
- by dunkin77
Sun Jun 17, 2007 8:42 am- Forum: Problem Solving
- Topic: PS question
- Replies: 1
- Views: 1345
- by dunkin77
Fri Jun 15, 2007 11:19 am- Forum: Problem Solving
- Topic: 1-12
- Replies: 5
- Views: 2564
- by dunkin77
Fri Jun 15, 2007 9:38 am- Forum: Data Sufficiency
- Topic: 1-11
- Replies: 2
- Views: 2255