Search found 27 matches
- by gana
Thu Jan 27, 2011 5:51 pm- Forum: Data Sufficiency
- Topic: whats the answer of this one and why
- Replies: 37
- Views: 22687
- by gana
Wed Jan 26, 2011 5:55 pm- Forum: GMAT Math
- Topic: Gmat questions from GMAT PREP
- Replies: 3
- Views: 1617
Hi Tani, What kind of explanation are you asking ? Why I did not get your explanation or why the answer is between 1/4 and 1/2. The question is from Gmat prep CD, OR software. I took the practice test and I missed this question. There is no explanation how to solve it yet they show what is the right...
- by gana
Tue Jan 25, 2011 11:16 pm- Forum: GMAT Math
- Topic: math questions from GMAT PREP
- Replies: 10
- Views: 3421
- by gana
Tue Jan 25, 2011 6:03 pm- Forum: GMAT Math
- Topic: math questions from GMAT PREP
- Replies: 10
- Views: 3421
Hi Tani, Thank you for your explanations. But I dont understand one more question from OG (green one, problem number 86). It says ; What is the largest integer n such that 1/2^n >0.01? a.5 b.6 c.7 d.10 e.51. OG explanation is that above equation is equivalent to 2^n<100. I dont know how 1/2^n > 0.01...
- by gana
Tue Jan 25, 2011 1:08 pm- Forum: GMAT Math
- Topic: math questions from GMAT PREP
- Replies: 10
- Views: 3421
Tani,
Sorry. Its my bad. I corrected the the first question. It was raised to the power of k not 2. Could you please look at them now?
- by gana
Tue Jan 25, 2011 1:00 pm- Forum: GMAT Math
- Topic: math questions from GMAT PREP
- Replies: 10
- Views: 3421
Hi, Thank you for your explanation. But why did you call x as middle number instead of the first number? Any difference?
- by gana
Mon Jan 24, 2011 7:08 pm- Forum: GMAT Math
- Topic: Gmat Prep question
- Replies: 4
- Views: 1550
Gmat Prep question
What is the average (arithmetic mean) of 11 consecutive integers?
1. the average of the first nine integer equals 7
2. the average of the last nune integer equals 9.
- by gana
Mon Jan 24, 2011 6:02 pm- Forum: GMAT Math
- Topic: Gmat Prep question
- Replies: 4
- Views: 1550
Gmat Prep question
If x is an integer , is (x^2+1)(x+5) even number?
1. x is odd number
2. each prime factor of x^2>7
- by gana
Mon Jan 24, 2011 6:00 pm- Forum: GMAT Math
- Topic: Gmat Prep question
- Replies: 1
- Views: 1258
- by gana
Mon Jan 24, 2011 5:57 pm- Forum: GMAT Math
- Topic: Gmat questions from GMAT PREP
- Replies: 1
- Views: 1199
Gmat questions from GMAT PREP
A used car dealer sold one car at a profit of 25% of the dealers purchase price for that car and sold another car at a loss of 20 % of the dealer's purchase price for that car. If dealer sold each car for 20,000 dollars what was the dealer's total profit or loss in dollars for the two transactions c...
- by gana
Mon Jan 24, 2011 5:55 pm- Forum: GMAT Math
- Topic: Gmat questions from GMAT PREP
- Replies: 1
- Views: 1269
Gmat questions from GMAT PREP
All of the stocks on the over-the counter market are designated by either a 4 -letter or 5-letter code that is created by using the 26 letters of tthe alphabet. Which of the following gives the maximum number of different stocks that can be designated with these codes? A. 2 (26^5) B. 26 (26^4) C. 27...
- by gana
Mon Jan 24, 2011 5:50 pm- Forum: GMAT Math
- Topic: Gmat questions from GMAT PREP
- Replies: 3
- Views: 1477
Gmat questions from GMAT PREP
In the xy plane, whats the y-intercept of line L?
1. The slope of the line L is 3 times y-intercept.
2. The x-intercept of line L is -1/3
- by gana
Mon Jan 24, 2011 5:44 pm- Forum: GMAT Math
- Topic: Gmat questions from GMAT PREP
- Replies: 1
- Views: 1515
Gmat questions from GMAT PREP
x is not equal to zero. What is square root of x^2 divided by x?
A. -1
B. 0
C.1
D. x
E. |x|/x
- by gana
Mon Jan 24, 2011 5:41 pm- Forum: GMAT Math
- Topic: Gmat questions from GMAT PREP
- Replies: 1
- Views: 1297
Gmat questions from GMAT PREP
If n is a multiple of 5 and n=p^2q where p and q are prime numbers, which of the following must be a multiple of 25. ?
A. p^2
B. q^2
C. pq
D. p^2q^2
E. p^3q
- by gana
Mon Jan 24, 2011 5:39 pm- Forum: GMAT Math
- Topic: Gmat questions from GMAT PREP
- Replies: 3
- Views: 1617