Search found 16 matches
Hi shantanu86/ spartacus1412, thank you for your suggestions.
My confusion was with this: can this expression not be reduced as
(m-n)/(m+n)> 1
=> (m-n)> (m+n)
=> -n > n
=> 0 > 2n
=> 0 > n
Since (1) clearly defines this. Hence A
- by polter
Sun Apr 29, 2012 10:31 am- Forum: Data Sufficiency
- Topic: Source Grockit: DS: Inequallity
- Replies: 4
- Views: 1255
Source Grockit: DS: Probability
An ice cream truck is passing out free ice cream to each child at a playground. The driver randomly hands out only chocolate, vanilla and strawberry ice cream. What is the probability that a certain child will receive either chocolate or strawberry ice cream? (1) The probability that a certain child...
- by polter
Wed Apr 25, 2012 6:38 pm- Forum: Data Sufficiency
- Topic: Source Grockit: DS: Probability
- Replies: 1
- Views: 1061
Source Grockit: DS: Inequallity
If m ≠-n, is (m-n)/(m+n)> 1?
(1) n < 0
(2) m > 0
[spoiler]E[/spoiler]
I think the correct answer should be different.
- by polter
Wed Apr 25, 2012 6:27 pm- Forum: Data Sufficiency
- Topic: Source Grockit: DS: Inequallity
- Replies: 4
- Views: 1255
Is anyone interested in forming a small GMAT study group (2 - 3) in London, preferably in West London? A few facts about me: Target Score = 720+ My previous GMAT score was 660 (v33 q48). I am a Project Manager at an Telecom firm. I live in Feltham but work in Slough, hence my preference for a West L...
- by polter
Sun Feb 12, 2012 4:02 pm- Forum: Let's Meet Up
- Topic: Anyone in London
- Replies: 30
- Views: 15085
Hi Ron, How can we distinguish between the 2 cases, viz. correlation & cause-effect. Since to me, "increase in X correlates with decrease in Y" = if X increases (cause) then Y decreases (effect). Besides does is it necessary that "increase in X correlates with decrease in Y" ...
- by polter
Tue Aug 02, 2011 7:54 am- Forum: Critical Reasoning
- Topic: law of demand
- Replies: 15
- Views: 3454
I have a confusion between C & E. Can't decide between them. C: "from which" is close to script, which is modified but not parallel to bringing E: "deriving" is parallel to bringing but it is far from script Can someone please clarify how do I choose between these 2 options?
- by polter
Tue May 24, 2011 5:44 am- Forum: Sentence Correction
- Topic: The Achaemenid Empire SC question
- Replies: 10
- Views: 1974
IMO.
A - they - ambiguous
B - it - incorrect pronoun
C - they - ambiguous
D - defend from - incorrect idiom
E - Correct
- by polter
Mon May 23, 2011 6:50 am- Forum: Sentence Correction
- Topic: Idiom
- Replies: 9
- Views: 1815
Got it this time.
Bottom-line: if something is needed does not necessarily imply that it was provided.
Thanks a lot for your patience, Anurag.
- by polter
Tue May 10, 2011 5:54 am- Forum: Data Sufficiency
- Topic: From GMAT Prep
- Replies: 7
- Views: 1351
Thanks for your responses.
Learnings:
For DS, there needs to be a unique solution and not multiple solution. Right?
- by polter
Tue May 10, 2011 2:55 am- Forum: Data Sufficiency
- Topic: Geometry - Triangles
- Replies: 5
- Views: 1530
Hi Anurag,
Thanks for your response.
But, "for 2 servings of a certain dish requires 1 1/2cups of pasta"
means that 2 servings requires 3/2 cups of pasta, doesn't it?
I am not getting this still.
Appreciate your thoughts/ clarifications.
-Polter
- by polter
Tue May 10, 2011 2:54 am- Forum: Data Sufficiency
- Topic: From GMAT Prep
- Replies: 7
- Views: 1351
Thanks for your responses cyrwr1 & djiddish98.
2 Learnings for me.
1.> Not to treat Inequalities as equations.
2.> Easier to substitute numbers
- by polter
Tue May 10, 2011 1:32 am- Forum: Data Sufficiency
- Topic: Inequality
- Replies: 5
- Views: 1108
From GMAT Prep
Malik's recipe for 2 servings of a certain dish requires 1 1/2cups of pasta, according to this reciepe, what us the number of cups of pasta that Malik will use the next time he prepares the dish? (1) The next time he prepares the dish, Malik will make half as many servings as he did the last time he...
- by polter
Mon May 09, 2011 3:40 pm- Forum: Data Sufficiency
- Topic: From GMAT Prep
- Replies: 7
- Views: 1351
Geometry - Triangles
In isosceles triangle RST, what is the measure of R? (1) the measure of T = 100 (2) The measure of S = 40. My logic: From (1), R + S = 180 - 100 = 80. Since T > 90, angle R = angle S. Hence, R = 80/2 = 40 From (2), R + T = 180 - 40 = 140. Assuming, angle R = angle t. Hence, R = 140/2 = 70. Hence, C ...
- by polter
Mon May 09, 2011 3:11 pm- Forum: Data Sufficiency
- Topic: Geometry - Triangles
- Replies: 5
- Views: 1530
Inequality
Is x less than 20?
(1) sum of x and y is less than 20
(2) y is less than 20
My Logic:
x + y < 20 .... (1)
y < 20 ..... (2)
Subtracting (2) from (1), x < 0. Hence my answer is C.
OA [spoiler]Correct Answer = E[/spoiler]
- by polter
Mon May 09, 2011 3:04 pm- Forum: Data Sufficiency
- Topic: Inequality
- Replies: 5
- Views: 1108
Loved your explanations, esp. The concept of prime factors for co-primes. I wasn't aware of this.
The answer is indeed E, as you correctly stated.
I didn't even think in similar lines. This was my first diagnostic test.
- by polter
Sat May 07, 2011 5:43 am- Forum: Problem Solving
- Topic: Quant - PS - Arithmetic
- Replies: 4
- Views: 1240