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Study in the GMAT Club Chat

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Re: Study in the GMAT Club Chat  [#permalink]

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New post 08 Feb 2017, 22:33
Top Contributor
laddaboy wrote:
Chat Session : 8th Feb 2016
Section : Verbal
Topic : CR
Sub Topic : Assumption questions

Question Discussed :

1. https://gmatclub.com/forum/generally-sc ... 61399.html
2. https://gmatclub.com/forum/two-centurie ... 58385.html
3. https://gmatclub.com/forum/frobisher-a- ... 69072.html


I missed out the session yesterday. Feeling bad. :(
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New post 09 Feb 2017, 07:31
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New post 13 Feb 2017, 22:34
1
Chat Session : 13th Feb
Section : Verbal
Topic : CR
Sub Topic : Assumption questions

Reiterating : To solve an assumption question it is a good idea to write down the Main point and Missing Info. The answer is always what the missing info is.

Tips :
1) Try being super aggressive to the argument or the author of the argument. Get in the mindset. HELPS A LOT.
2) How to get the main point and missing info is by trying to identify what the author is REALLY trying to say or jumping the gun

Questions Discussed :
1. https://gmatclub.com/forum/source-gmatp ... 71306.html
2. https://gmatclub.com/forum/the-ancient- ... 44778.html
3. https://gmatclub.com/forum/the-ancient- ... 44937.html
4. https://gmatclub.com/forum/personnel-of ... 53913.html
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New post 14 Feb 2017, 20:05
Chat Session : 13th Feb
Section : Quant

Discussed a handful of DS questions.

Tip's :
1. X and X^n always have the exact same prime factors.
2. When any GMAT-question involves the terms factors and multiples --> WE CANNOT USE NEGATIVE INTEGERS.
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New post 16 Feb 2017, 06:15
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New post 16 Feb 2017, 10:08
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New post 16 Feb 2017, 10:12
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New post 28 Feb 2017, 00:47
souvik101990 wrote:
Hi Guys. Sorry I have been a bit unavailable. I had a somewhat significant medical emergency but now all good. Hope to resume the sessions from today. How is every one doing?


Dear souvik101990, I hope you are all right and hope to resume the GMAT study in the chat as well. :-D

I have difficulty to resolve this kind of problem and I am so stressful.

If N is a positive integer, does N have exactly three factors?

(1) The integer \(N^2\) has exactly five factors

(2) Only one factor of N is a prime number
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New post 02 Mar 2017, 10:05
Hey souvik101990, hope everything is fine. It's been almost 2 weeks without a session now :(. When are we resuming ?
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New post 05 Mar 2017, 16:35
souvik101990 stonecold. Hi Guys, Can we resume our chat sessions from today please ?
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New post 31 Mar 2017, 06:13
souvik101990 & stonecold, Any chat study for Verbal and Quant?
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"Be challenged at EVERY MOMENT."

“Strength doesn’t come from what you can do. It comes from overcoming the things you once thought you couldn’t.”

"Each stage of the journey is crucial to attaining new heights of knowledge."

Rules for posting in verbal forum | Please DO NOT post short answer in your post!

Advanced Search : https://gmatclub.com/forum/advanced-search/

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New post 19 Dec 2017, 13:01
hazelnut wrote:
souvik101990 wrote:
Hi Guys. Sorry I have been a bit unavailable. I had a somewhat significant medical emergency but now all good. Hope to resume the sessions from today. How is every one doing?


Dear souvik101990, I hope you are all right and hope to resume the GMAT study in the chat as well. :-D

I have difficulty to resolve this kind of problem and I am so stressful.

If N is a positive integer, does N have exactly three factors?

(1) The integer \(N^2\) has exactly five factors

(2) Only one factor of N is a prime number


How did I miss this.
Apologies for late response.

Here is what I would do on this question =>

Given data -> N >0 and N is an integer.
We are asked if N has three factors.

The number of factors of any integer K = p^a * q^b *r^c were p , q, r are prime factors of K is given by (a+1)*(b+1)*(c+1)

Now the only way N can have 3 factors is of N is of the form p^2 for some prime number p.

So lets dive into statements -->

If N^2 has 5 factors => N must be of the form p^2

Sufficient.

Statement 2 ->Only one factor of N is a prime number.
N can be 2^20 or 3^10 or 5^2

Not sufficient.


Hence A.

Excellent Question!




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