Search found 125 matches
1. insufficient because we do not know how many integers are there in the set. so can be +ve or -ve. 2. again, even nos of integers in the list doesn't give us enough info. insufficient. combine 1 + 2 in 1, it says that the product of greatest and smallest is +ve:- thus it can mean either all numbe...
- by joyseychow
Sun Apr 11, 2010 6:30 am- Forum: Data Sufficiency
- Topic: List of integer-gmatprep
- Replies: 3
- Views: 1210
List of integer-gmatprep
A certain list consist of several different integers. Is the product of all integers in the list positive? 1) The product of the greatest and the smallest integer in the list is positive 2) There is an even number of integers in the list [spoiler]This is pretty simple but I'm just not seeing it. OA ...
- by joyseychow
Thu Apr 08, 2010 11:15 pm- Forum: Data Sufficiency
- Topic: List of integer-gmatprep
- Replies: 3
- Views: 1210
- by joyseychow
Thu Apr 08, 2010 6:47 am- Forum: Critical Reasoning
- Topic: Patient Survey
- Replies: 7
- Views: 2047
GMATPrep: Equal to n?
If each term in the sum a1+a2............an is either 7 or 77 and the sum equals 350, which of the following could be equal to n?
A. 38
B. 39
C. 40
D. 41
E. 42
- by joyseychow
Thu Apr 01, 2010 7:21 pm- Forum: Problem Solving
- Topic: GMATPrep: Equal to n?
- Replies: 3
- Views: 1459
Subprime lending market.
The loan company announced it would soon lend money to borrowers with proven records of their not paying back their loans on time , collectively known as the subprime lending market. A - of their not paying back their loans on time, B - of not paying back their loans on time, a group C - of not payi...
- by joyseychow
Tue Mar 16, 2010 12:53 am- Forum: Sentence Correction
- Topic: Subprime lending market.
- Replies: 4
- Views: 2289
Fraction factorial-mgmat
Which of the following fractions has the greatest value?
A. 3/8!
B. 6(4!) / 5(9!)
C. 4(3!) / 9!
D. 3 / 5(7!)
E. 14 / 5(8!)
Where do I start? I can't see any similarities to narrow the down the answer.
OA is D
- by joyseychow
Wed Mar 03, 2010 5:23 am- Forum: Problem Solving
- Topic: Fraction factorial-mgmat
- Replies: 4
- Views: 1154
- by joyseychow
Tue Feb 16, 2010 6:26 pm- Forum: Data Sufficiency
- Topic: Inequality & absolute value (Mgmat)
- Replies: 3
- Views: 1218
are u sure of OA? What is the source? I am getting the answer as D. here is my approach: 4 hours ago = 1000 right now = 4000 4000 * 2^n = 250,000 2^n = 62.5, sunce n has to be an integer- we round off the number to the nearest multiple of 2 ie 64. 2^n= 64 => n=6. ie after 6 spaces down the chart th...
- by joyseychow
Tue Feb 16, 2010 6:27 am- Forum: Problem Solving
- Topic: Population Growth-locust
- Replies: 5
- Views: 4674
Population Growth-locust
The population of locusts in a certain swarm doubles every two hours. If 4 hours ago there were 1,000 locusts in the swarm, in approximately how many hours will the swarm population exceed 250,000 locusts? A) 6 B) 8 C) 10 D) 12 E) 14 [spoiler]OA is D . I got this correct by using population chart, i...
- by joyseychow
Fri Feb 12, 2010 10:33 pm- Forum: Problem Solving
- Topic: Population Growth-locust
- Replies: 5
- Views: 4674
Absolute Value
If x and y are non-zero integers and |x| + |y| = 32, what is xy?
(1) -4x – 12y = 0
(2) |x| – |y| = 16
[spoiler]OA is A. Am I missing something here? Why stmt 1 is sufficient? [/spoiler]
- by joyseychow
Tue Feb 02, 2010 8:50 pm- Forum: Data Sufficiency
- Topic: Absolute Value
- Replies: 12
- Views: 2057
If x is an integer....
If x is an integer and sqrt(x) * x - x = a , which of the following must be true? I. a is Even II. a is Positive III. a is an Integer A. I only B. II only C. III only D. I and II E. None of the above [spoiler]IMO is C. If I simplify equation sqrt(x) * x - x = a -----> x[sqrt(x) -1]=a, then am I righ...
- by joyseychow
Thu Jan 28, 2010 11:39 pm- Forum: Problem Solving
- Topic: If x is an integer....
- Replies: 3
- Views: 4230
Consecutive Integers
x, y, and z are consecutive integers, and x < y < z. What is the average of x, y, and z?
(1) x = 11
(2) The average of y and z is 12.5.
[spoiler]Can we considered prime numbers as an option of consecutive integers? Also, how can stmt2 be sufficient?
OA is D[/spoiler]
- by joyseychow
Mon Jan 25, 2010 7:38 pm- Forum: Data Sufficiency
- Topic: Consecutive Integers
- Replies: 1
- Views: 1227
So, you've figured out that the minimum possible value of y is 6. But you are forgetting to consider the cases where the numerator is smaller than the denominator. Certainly, 11 is divided by 6 once, leaving a remainder of 5, or 1R5. But 5 is divided by 6 zero times, also leaving a remainder of 5, ...
- by joyseychow
Thu Jan 21, 2010 12:12 am- Forum: Problem Solving
- Topic: Remainder of 5
- Replies: 2
- Views: 1068
Poor Questions puts every one off!!! Plz dont post just for the sake of Posting...... Hey Govardhan, maybe she didn't know it was a bad question! (...but she should have posted the source!) @TestLuv, Why not C?? I am really not able to get what D tries to putforth!!! The argument can be looked at a...
- by joyseychow
Thu Jan 21, 2010 12:00 am- Forum: Critical Reasoning
- Topic: Baseball team
- Replies: 8
- Views: 2353
gmatmachoman wrote:Sorry!! This is not a GMAT way of asking ....
Please Quote your source!!
Even this is not of LSAT like....
Please tell me ,on what pattern your Question fits in??? Hope you recognize all the pattern of CR!!!
Source: Manhattan CAT online.
- by joyseychow
Wed Jan 20, 2010 11:46 pm- Forum: Critical Reasoning
- Topic: Small community hospitals
- Replies: 11
- Views: 3010