Search found 43 matches
I agree with Zerks; I don't think you need to go to the time and effort of solving using algebra or plugging numbers. I would only do so if you were confused / struggling. I got to B within 2 minutes and my apporach was as follows {_,_,x,_,x+3} is average of set > median of set? It is crucial to rea...
- by tgou008
Tue May 10, 2011 7:50 am- Forum: Data Sufficiency
- Topic: Average value > Median
- Replies: 24
- Views: 11267
- by tgou008
Mon May 09, 2011 3:04 pm- Forum: Data Sufficiency
- Topic: Probability
- Replies: 30
- Views: 13419
IMO D Stmt 1: P (1st sock is black) is <0.2 0.2 x 8 socks = 1.8 therefore p < 1.8, therefore there must be either 1 or 0 black socks, which means that the probability of drawing two black socks will be zero (i.e., 1/8 x 0/7 OR 0/8 x 0/8) SUFFICIENT Stmt 2: P (1st sock white) > 0.8 therefore probabil...
- by tgou008
Sat May 07, 2011 6:59 am- Forum: Data Sufficiency
- Topic: Probability
- Replies: 30
- Views: 13419
- by tgou008
Sat May 07, 2011 6:48 am- Forum: Reading Comprehension
- Topic: Reading Comprehension ..........
- Replies: 44
- Views: 28274
I thought this was a pretty straight forward SC correct Can easily eliminate A, B, and D due to their use of 'their' instead of 'its' when referring to 'S Corporation', which is singular Then have to decide between C or E and the only difference is "mandate that.." (C) or "mandate an&...
- by tgou008
Fri May 06, 2011 3:55 pm- Forum: Sentence Correction
- Topic: This Sc violates the tense rule????send??
- Replies: 38
- Views: 16729
Hi Gaurav, Here's how I broke down the passage. I couldn't see any paragraphing (if there was any originally) so I broke it into sections by line number. Topic: Behavior science Scope: challenges facing B.s. Author's pov: It should be gaining prominence. + lines 1- 14: to state that B.s. should be ...
- by tgou008
Tue May 03, 2011 9:26 am- Forum: Reading Comprehension
- Topic: RC doubts
- Replies: 9
- Views: 13306
Great question - thanks for posting! One other way to look at statement 1 is this: If sqrt (36x) is an integer, then you can break apart the multiplication inside the square root to say that: sqrt 36x = integer sqrt 36 * sqrt x = integer 6 * sqrt x = integer So the square root of x must either be a...
- by tgou008
Tue May 03, 2011 9:02 am- Forum: Data Sufficiency
- Topic: Beat the GMAT question - Brilliant
- Replies: 25
- Views: 12197
Oooh this question got me. I initially picked D, but after reading the responses I see where I tripped up. The first and only distinction I picked up on was the 'we' vs. 'us'; which meant I was able to eliminate A and E off the bat. Nothing else jumped out at me so I ended up going with D, which mea...
- by tgou008
Mon May 02, 2011 1:20 pm- Forum: Sentence Correction
- Topic: In the engineering sector
- Replies: 32
- Views: 14951
If Dave works alone he will take 20 more hours to complete a task than if he worked with Diana to complete the task. If Diana works alone, she will take 5 more hours to complete the complete the task, then if she worked with Dave to complete the task? What is the ratio of the time taken by Dave to t...
- by tgou008
Mon May 02, 2011 7:27 am- Forum: Problem Solving
- Topic: Work rate
- Replies: 30
- Views: 15493
ORIGINAL QUESTION - In the xy-plane, at what two points does the graph of y = (x + a)(x + b) intersect the x-axis? (1) a + b = -1 (2) The graph intersects the y-axis at (0, -6). MY RESPONSE - The first thing I wanted to do / did do was expand the equation to get y = x^2 + bx + ax + ab y = x^2 + x(a+...
- by tgou008
Sun May 01, 2011 12:45 pm- Forum: Data Sufficiency
- Topic: Coordinate geometry
- Replies: 16
- Views: 10373
IMO D. Reasoning is as follows A - Incorrect. Study does not support view that humans are selfish and rational, in fact the experiment proved that most participants did not act selfishly or rationally. B - Incorrect. Study does not challenge BUT rather supports the notion that human beings are motiv...
- by tgou008
Thu Apr 28, 2011 11:49 am- Forum: Reading Comprehension
- Topic: RC help
- Replies: 18
- Views: 13062
IMO A Here is my working Train is travelling @ 72km / hour, this is equivalent to - 1.2km / minute, which is equivalent to - 1,200m / minute (as there are 1000m per km), which in turn equates to - 20m / second (divide 1200m by 60s) It takes the train 12 seconds to cross the entire platform (i.e., 30...
- by tgou008
Thu Apr 28, 2011 11:33 am- Forum: Problem Solving
- Topic: What is the length of the platform in meters...............
- Replies: 46
- Views: 27570
I thought this was pretty straightforward, but think if you moved through it too quickly you would have picked A over D. This took me just over a minute by my thought process was as follows: y = [x] + x AND y = integer Does y = 0? I know from the above equation that y will equal zero if x is <0 OR i...
- by tgou008
Wed Apr 27, 2011 7:14 am- Forum: Data Sufficiency
- Topic: Modulus
- Replies: 22
- Views: 11309
Yes, I too found the wording in C a little confusing and thus eliminated it; As there was no mention in the passage specifically about an economics PHD. I could eliminate B and D easily. However, A C and E were not soo straight forward; each could be technically accurate but I thought they were all ...
- by tgou008
Tue Mar 22, 2011 6:53 am- Forum: Critical Reasoning
- Topic: Harvard education options
- Replies: 31
- Views: 18778
IMO E. My approach was as follows A - Is discredited by the final sentence of the last para. Eliminate B - Some relevance to passage, however no mention anywhere in passage of 'six clusters'. Eliminate C - Medications and stimulants are mentioned in the passage, however not in the 'crucial' 1st para...
- by tgou008
Mon Mar 21, 2011 7:33 am- Forum: Reading Comprehension
- Topic: ADD in depth
- Replies: 17
- Views: 13671