Search found 29 matches
number line problem (GMAT prep)
This problem tripped me :( Please explain. Is y between -2 and 1 on the number line? (1) y is to the right of -1 on the number line (2) y is to the left of 2 on the number line The answer is E. Here was my logic : (1) could go beyond 1 and hence not sufficient (2) could go beyond -2 and hence not su...
- by Pugalenthi
Sat Jun 30, 2012 12:27 pm- Forum: Problem Solving
- Topic: number line problem (GMAT prep)
- Replies: 2
- Views: 1928
co-ordinate geometry - GMAT Prep
Hi, I am stumped on this question (particularly seeing x^2 in the equation whereas the line equation is y = mx + b)...any explanation would be much appreciated. In the X-Y plane, at what 2 points does the graph y=(x+a)(x+b) intersect the X-axis? (1)a + b = -1 (2) the graph intersects the Y-axis at (...
- by Pugalenthi
Sat Jun 30, 2012 9:14 am- Forum: Problem Solving
- Topic: co-ordinate geometry - GMAT Prep
- Replies: 1
- Views: 975
data sufficiency ?
Is it true that x > 0?
(i) x^2 = 2x
(2) x^3 = 3x
The answer is C. Can someone explain in detail please?
Thanks
Pugal
- by Pugalenthi
Tue Jun 26, 2012 11:25 am- Forum: Data Sufficiency
- Topic: data sufficiency ?
- Replies: 2
- Views: 976
- by Pugalenthi
Fri Jun 01, 2012 7:07 am- Forum: Data Sufficiency
- Topic: OG 12; data sufficiency; problem 167
- Replies: 3
- Views: 1469
OG 12; data sufficiency; problem 167
If n is a positive integer, what is the tens digit of n?
(1) the hundreds digit of 10n is 6
(2) the tens digit of n+1 is 7
The answer is A.
I can understand why B is not an answer but not able to understand why A is the answer. Any help would be much appreciated.
- by Pugalenthi
Fri Jun 01, 2012 7:01 am- Forum: Data Sufficiency
- Topic: OG 12; data sufficiency; problem 167
- Replies: 3
- Views: 1469
The answer is A
From stmt 1, p = (t+m)/2; and hence p must be even integer; and hence mpt must be even
From stmt 2; t and m both could be either even or odd and no info on P and hence not sufficient
- by Pugalenthi
Tue May 22, 2012 12:37 pm- Forum: Data Sufficiency
- Topic: mpt
- Replies: 2
- Views: 1094
I think is the answer is E
Stmt 1 - doesn't provide much insight
Stmt 2 - provides info on line 2 and nothing about line 1
Taken together, no insight about line 1
- by Pugalenthi
Tue May 22, 2012 12:32 pm- Forum: Data Sufficiency
- Topic: slope
- Replies: 2
- Views: 917
- by Pugalenthi
Tue May 22, 2012 12:25 pm- Forum: Data Sufficiency
- Topic: Integer
- Replies: 1
- Views: 776
- by Pugalenthi
Tue May 22, 2012 12:23 pm- Forum: Data Sufficiency
- Topic: Sales
- Replies: 2
- Views: 736
I think the answer is A since all the numbers within the given range in stmt 1 can be expressed as product of two integers each of which is >1
- by Pugalenthi
Tue May 22, 2012 12:19 pm- Forum: Data Sufficiency
- Topic: Integer
- Replies: 5
- Views: 1461
OG 11; problem solving; 129
OG 11; problem solving; 129) on a recent trip, Cindy drove her car 290 miles, rounded to the nearest 10 miles, and used 12 gallons of gasoline, rounded to the nearest gallon. The actual number of miles per gallon that cindy's car got on this trip must have been between (a) 290/12.5 and 290/11.4 (b) ...
- by Pugalenthi
Tue May 22, 2012 12:11 pm- Forum: Data Sufficiency
- Topic: OG 11; problem solving; 129
- Replies: 5
- Views: 1532
Makes sense...my follow up question is...how about this range of numbers... -20, -10,0, -10. In my example, s - r would be 10 but the numbers are not consecutive. What am I missing:)?
- by Pugalenthi
Mon May 21, 2012 10:32 am- Forum: Data Sufficiency
- Topic: OG 11; data sufficiency; 61
- Replies: 3
- Views: 943
OG 11; data sufficiency; 61
61) how many integers are there between, but not including, integers r and s? (1) s -r = 10 (2) there are 9 integers between, but not including r+1 and s+1. The answer is D. Here is my question- what is the hint in the question that leads to the integers between s and r are consecutive ? For e.g., i...
- by Pugalenthi
Mon May 21, 2012 9:10 am- Forum: Data Sufficiency
- Topic: OG 11; data sufficiency; 61
- Replies: 3
- Views: 943
Does this mean... For stmt 2, I should apply only the numbers >=0.5 and not numbers like 0.49? I am looking for the reasoning here and not just the answer. Please let me know
- by Pugalenthi
Mon May 21, 2012 8:30 am- Forum: Data Sufficiency
- Topic: OG 11; data sufficiency; problem 58
- Replies: 3
- Views: 905
OG 11; data sufficiency; problem 58
If d denotes a decimal, is d >=0.5? (1) when d is rounded to the nearest 10th, the result is 0.5 (2) when d is rounded to the nearest integer, the result is 1 The answer is B. here is my question...if d = 0.49 then by rounding to the nearest integer, the answer is 1 but d < 0.5. What am I missing? P...
- by Pugalenthi
Mon May 21, 2012 6:37 am- Forum: Data Sufficiency
- Topic: OG 11; data sufficiency; problem 58
- Replies: 3
- Views: 905