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assuming you're a relative beginner at DS, here are a couple of relevant pieces of advice. statement (1): BE SURE that you appreciate the DIRECTIONALITY of data sufficiency problems. weirdly enough, they "read upside down": namely, you have to read the problem as "IF (statement), THE...

by aalexjacob

Sat Dec 15, 2012 1:15 am
Forum: Data Sufficiency
Topic: X between 0 and 1
Replies: 4
Views: 8288

On lines similar to that discussed in this post. There are no common factors between two consecutive apart from 1. For example take 9 and 10, there are no mutual factors among them except for 1. Similarly consider 5! and 5!+1. The factors of 5! are 2, 3, 4, 5 ... and in the case of 5!+1=121 the fact...

by aalexjacob

Mon Dec 10, 2012 11:20 am
Forum: Problem Solving
Topic: The smallest prime factor of h(100) + 1
Replies: 7
Views: 21157

Here is a good parallel

Initially I did not see the word "THAT" in the first choice, but once I saw it, I was convinced that it was the right answer.


:D

by aalexjacob

Fri Dec 07, 2012 5:12 am
Forum: Sentence Correction
Topic: GMAT prep -- Despite the growing number of people.
Replies: 10
Views: 7344

GMATGuruNY wrote:
This SC mimics an official SC from GMAC, discussed here:

http://www.beatthegmat.com/gmat-prep-de ... 07275.html
Thanks a lot very kind of you

by aalexjacob

Fri Dec 07, 2012 5:05 am
Forum: Sentence Correction
Topic: Many analysts
Replies: 7
Views: 3272

Can anyone tell me what logic was used to eliminate option E.

"Most people now take for granted that colleges and universities admit students nationally based on academic merit, and it"

I used the logic that 'but' should be used instead of 'and' to show contrast.

Comments please!!!

by aalexjacob

Wed Nov 28, 2012 10:52 pm
Forum: Sentence Correction
Topic: very annoying sentence correction problem
Replies: 13
Views: 5517

mehravikas wrote:'B' is passive...

Compare the first part (before the comma) of both the sentences.

Though most people take it for granted now

Though it is now taken for granted by most people
perfectstranger wrote:Could someone explain why B is wrong?

What does admission of nationwide student mean? It is rubbish.

by aalexjacob

Wed Nov 28, 2012 10:50 pm
Forum: Sentence Correction
Topic: very annoying sentence correction problem
Replies: 13
Views: 5517