Search found 77 matches
IMO, for such small ranges it is quicker to just enumerate the numbers and list the prime numbers. At a general level, in a set of any ten consecutive numbers (like 11-20, 32-40, 151-160 etc) there will be 2 number divisible by 5, 4 number divisible by 2 (taking the one's ending with 0 under divisib...
- by Auzbee
Tue Jan 01, 2008 6:17 pm- Forum: Problem Solving
- Topic: Number properties: Prime Numbers ...
- Replies: 1
- Views: 1436
How to view the GMAT Prep scores again??
1. I took the second GMAT Prep test today and accidentally moved over the score screen. Does anyone know how to view the percentile breakup and final score results? 2. Also is it possible to receive a lower percentile with less incorrect answers in the verbal section? X percentile -> 15 wrong <X> 13...
- by Auzbee
Tue Jan 01, 2008 6:04 pm- Forum: GMAT Strategy
- Topic: How to view the GMAT Prep scores again??
- Replies: 2
- Views: 1575
GMATPrep Q on SC
Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska's coast suggest that at least a portion of the area was remaining ice-free during the last ice age. a. suggest that at least a portion of the area was remaining b. suggest at least a portion of the area remaining c. ...
- by Auzbee
Tue Jan 01, 2008 5:13 pm- Forum: Sentence Correction
- Topic: GMATPrep Q on SC
- Replies: 15
- Views: 5890
The fastest way to solve this particular problem would be to convert it into percentages. Be careful in such problems if the ratio's are close to each other, then you would have to use the other approaches called out. m=9/25=36/100 = 36% w=15/32 (since 33.3 *3 ~100)= 45/96= ~46% c= 100-46-36=18 henc...
- by Auzbee
Tue Jan 01, 2008 1:46 pm- Forum: Problem Solving
- Topic: GMAT Prep
- Replies: 7
- Views: 2578
DS question on Sum of consecutive postive integers
The sum of n consecutive positive integers is 45. What is the value of n?
(1) n is even
(2) n < 9
OA is E. What will be the quickest way to solve this?
- by Auzbee
Mon Dec 31, 2007 7:53 pm- Forum: Data Sufficiency
- Topic: DS question on Sum of consecutive postive integers
- Replies: 7
- Views: 2354
Amitava,So minimum range of population that a city can have = (90/100 * 12000) = 10,800 and maximum = (110/100 * 12000) = 13200. So the minimum population that a city can have = 11000. IMO D.
In your explanation why did you choose 11000 and not 10900?
- by Auzbee
Mon Dec 31, 2007 7:12 pm- Forum: Problem Solving
- Topic: GMAT Prep 1 PS 31
- Replies: 4
- Views: 2115
Starxxx, I feel that these type of problems eat away extra time on the GMAT. Not sure how to tackle them, other than take a smart guess and move on. Cracking such questions in one shot in less than 3 minutes is highly doubtful.
- by Auzbee
Mon Dec 31, 2007 7:04 pm- Forum: Problem Solving
- Topic: Tough Word Problem - Please explain!
- Replies: 3
- Views: 1686
Complex PS problem
For any integer k > 1, the term “length of an integer” refers to the number of positive prime factors, not necessarily distinct, whose product is equal to k. For example, if k = 24, the length of k is equal to 4, since 24 = 2 × 2 × 2 × 3. If x and y are positive integers such that x > 1, y > 1, and ...
- by Auzbee
Mon Dec 31, 2007 6:59 pm- Forum: Problem Solving
- Topic: Complex PS problem
- Replies: 2
- Views: 1730
Let R be the radius of bigger circle and r be the radius of the smaller one.
Then
*Note Pi is denoted by #
((#R^2)-(#r^2)/(#r^2))=3/1
=> #R^2=4#r^2
=> R=2r
Ratio of Circumference of the two circles is the ratio of the radius
Hence R/r=2 from above.
Correct answer is 2.
- by Auzbee
Mon Dec 31, 2007 6:56 pm- Forum: Problem Solving
- Topic: circle
- Replies: 16
- Views: 4949
Sorry to hear about your low score. This forum has lots of resources to get you started on every front. Also read through the various debriefs of people who have beaten the GMAT to get a good understanding of their strategy. IMO this should be a good starting point for you if you are clueless. Ultim...
- by Auzbee
Mon Dec 31, 2007 6:44 pm- Forum: I just Beat The GMAT!
- Topic: Okay so I got a 300 - help me out please
- Replies: 1
- Views: 1971
- by Auzbee
Mon Dec 31, 2007 2:38 pm- Forum: Sentence Correction
- Topic: SC question requires explanation
- Replies: 6
- Views: 2975
- by Auzbee
Mon Dec 31, 2007 2:31 pm- Forum: Critical Reasoning
- Topic: Awesome CR question...
- Replies: 12
- Views: 4041
I have corrected the question in my edit. Let me know your reply.I am not sure as to what exactly is the inequality, since formatting is messing up what you've written.
Thanks
- by Auzbee
Mon Dec 31, 2007 2:25 pm- Forum: Data Sufficiency
- Topic: Question involving absolute values
- Replies: 5
- Views: 1769
- by Auzbee
Mon Dec 31, 2007 12:48 pm- Forum: Data Sufficiency
- Topic: Mean/Median DS problem
- Replies: 2
- Views: 2119
Question involving absolute values
If a and b are integers, and |a| > |b|, is a · |b| < a – b?
1. a less than zero
2. ab greater than equal to zero
Would love to see explanation for this one. Can this be cracked in 2 min time?
- by Auzbee
Mon Dec 31, 2007 12:18 pm- Forum: Data Sufficiency
- Topic: Question involving absolute values
- Replies: 5
- Views: 1769