Search found 13 matches
Twice vs. Double
All, I have a general question regarding the use of the word "twice" vs. the use of the word "double." Please see an example below: Facebook has more than 200 million active users, double the number it had last August. Can you use the word "twice" in place of "doub...
- by TGE
Wed May 20, 2009 11:14 am- Forum: Sentence Correction
- Topic: Twice vs. Double
- Replies: 1
- Views: 2855
- by TGE
Mon May 18, 2009 5:26 am- Forum: Critical Reasoning
- Topic: GMAT Prep - Fullerenes
- Replies: 7
- Views: 2649
Apple100, You divide by 3! since we don't care about the order, and there are 3! different ways (i.e., permutations) to arrange the 3 people. So you have to divide the number of permutations (i.e., 8 x 6 x 4) by 3! so that you count the arrangements of any 3 people only once. Hope this helps. Anyone...
- by TGE
Sun May 17, 2009 6:04 pm- Forum: Data Sufficiency
- Topic: Combinations Question
- Replies: 5
- Views: 1326
- by TGE
Sun May 17, 2009 4:13 pm- Forum: Data Sufficiency
- Topic: Combinations Question
- Replies: 5
- Views: 1326
GMAT Prep - Fullerenes
All, Please see the question below: Although fullerenes – spherical molecules made entirely of carbon – were first found in the laboratory, they have since been found in nature, formed in fissures of the rare mineral shungite. Since laboratory synthesis of fullerenes requires distinctive conditions ...
- by TGE
Sun May 17, 2009 4:06 pm- Forum: Critical Reasoning
- Topic: GMAT Prep - Fullerenes
- Replies: 7
- Views: 2649
Combinations Question
Please see the problem below: A committee of three people is to be chosen from four married couples. What is the number of different committees that can be chosen if two people who are married to each other cannot both serve on the committee? (A) 16 (B) 24 (C) 26 (D) 30 (E) 32 OA: E Any help would b...
- by TGE
Sun May 17, 2009 3:19 pm- Forum: Data Sufficiency
- Topic: Combinations Question
- Replies: 5
- Views: 1326
- by TGE
Sun May 17, 2009 12:56 pm- Forum: Data Sufficiency
- Topic: GMAT Prep - Triangles
- Replies: 4
- Views: 1281
GMAT Prep - Triangles
Hello again,
Having problems trying to figure out the following problem (may need to zoom in on the image):
OA is D.
I know both effectively give the same information, but don't know how to use it solve the problem. Thanks for your help.
- by TGE
Sun May 17, 2009 12:37 pm- Forum: Data Sufficiency
- Topic: GMAT Prep - Triangles
- Replies: 4
- Views: 1281
iamcste, you're right. I made an error in my post. (2) should be |x-3| < -y.
Thank you for the clarification and apologies for the confusion.
- by TGE
Sun May 17, 2009 12:14 pm- Forum: Data Sufficiency
- Topic: GMAT Prep - Absolute Values
- Replies: 5
- Views: 1276
- by TGE
Sun May 17, 2009 8:26 am- Forum: Data Sufficiency
- Topic: GMAT Prep - Absolute Values
- Replies: 5
- Views: 1276
GMAT Prep - Absolute Values
Hello all,
Please see the question below:
If y≥0, what is the value of x?
(1) |x-3| ≥ y
(2) |x - 3| ≥ - y
OA: B
I thought both statements give the exact same information, but would love to get your guys' views. Many thanks.
- by TGE
Sun May 17, 2009 6:38 am- Forum: Data Sufficiency
- Topic: GMAT Prep - Absolute Values
- Replies: 5
- Views: 1276
Makes sense. I was able to eliminate A,B and D, but was struggling between C and E. The part I was missing was lining up and adding the two inequalities.
Thanks for the help, Cramya.
- by TGE
Sun May 17, 2009 6:13 am- Forum: Data Sufficiency
- Topic: GMAT Prep
- Replies: 2
- Views: 1234
GMAT Prep
Hello all,
Need help with understanding how to solve the following question efficiently:
Is xy > 0?
(1) x - y > -2
(2) x - 2y < -6
OA: C
Many thanks.[/spoiler]
- by TGE
Sat May 16, 2009 9:45 pm- Forum: Data Sufficiency
- Topic: GMAT Prep
- Replies: 2
- Views: 1234