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: 2349

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.
Amitava,
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

OA is E. Thanks for the explanation.

by Auzbee

Mon Dec 31, 2007 2:38 pm
Forum: Sentence Correction
Topic: SC question requires explanation
Replies: 6
Views: 2975

I am sorry the OA is D.

by Auzbee

Mon Dec 31, 2007 2:31 pm
Forum: Critical Reasoning
Topic: Awesome CR question...
Replies: 12
Views: 4041

I am not sure as to what exactly is the inequality, since formatting is messing up what you've written.
I have corrected the question in my edit. Let me know your reply.

Thanks

by Auzbee

Mon Dec 31, 2007 2:25 pm
Forum: Data Sufficiency
Topic: Question involving absolute values
Replies: 5
Views: 1769

That's the right answer.

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