It is currently 22 Jun 2017, 14:11

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# I'm going to make a sticky thread where the very very basic

Author Message
TAGS:

### Hide Tags

Manager
Joined: 26 Dec 2009
Posts: 136
Location: United Kingdom
Concentration: Strategy, Technology
GMAT 1: 500 Q45 V16
WE: Consulting (Computer Software)

### Show Tags

11 Jan 2011, 13:52
thanks man. very helpful. great stuff.
Intern
Joined: 28 Dec 2010
Posts: 9

### Show Tags

13 Apr 2011, 03:53
thanks.. this is a really useful thread..!
Intern
Joined: 10 Jan 2011
Posts: 21
Location: India
Schools: ISB, IIM-A
WE 1: 4 yrs in finance

### Show Tags

18 Apr 2011, 10:56
shrive555 wrote:
The sum of N consecutive integers:
S=(n+n+N-1)*N/2=n*N+N*(N-1)/2
S/N=n+(N-1)/2
If N is odd, then S would be a multiple of N. If N is even, then S would not be a multiple of N.

i don't understand this.....

It simply means that if you are adding N consecutive integers then their sum S will be a multiple of N if N=odd

i.e for example

let suppose a series of 1,2,3,4,5
total integers =5 (N=5)

sum of integers=15 (1+2+3+4+5)

then 15 is a multiple of 5 i.e N

this is the only for N= odd not for N= even
_________________

Rahul

Manager
Joined: 05 Jan 2012
Posts: 78
Schools: Wharton '15
WE: Sales (Internet and New Media)

### Show Tags

19 Jan 2012, 21:00
thanks for posting
Manager
Joined: 05 Jan 2012
Posts: 78
Schools: Wharton '15
WE: Sales (Internet and New Media)

### Show Tags

19 Jan 2012, 21:07
Manager
Joined: 02 Feb 2012
Posts: 204
Location: United States
GMAT 1: 770 Q49 V47
GPA: 3.08

### Show Tags

11 Feb 2012, 17:50
Thank you for this!
Intern
Joined: 09 Oct 2012
Posts: 2
Re: I'm going to make a sticky thread where the very very basic [#permalink]

### Show Tags

12 Oct 2012, 07:16
Nice! I love this thread. I have long forgotten about the basics. ^^
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15915
Re: I'm going to make a sticky thread where the very very basic [#permalink]

### Show Tags

25 Jan 2014, 15:22
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Intern
Joined: 03 Jul 2013
Posts: 35
Re: I'm going to make a sticky thread where the very very basic [#permalink]

### Show Tags

05 Feb 2014, 07:19
a=4 , b= 3 , and c=-5 ,d=-9 . then a>c , b>d . then it is not ab >cd . it is not . because 12>45 ? not true .

Posted from my mobile device
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15915
Re: I'm going to make a sticky thread where the very very basic [#permalink]

### Show Tags

30 Mar 2015, 08:38
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15915
Re: I'm going to make a sticky thread where the very very basic [#permalink]

### Show Tags

18 Jun 2016, 20:51
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
Re: I'm going to make a sticky thread where the very very basic   [#permalink] 18 Jun 2016, 20:51

Go to page   Previous    1   2   3   4   5   6   7   [ 131 posts ]

Similar topics Replies Last post
Similar
Topics:
25 24 Very Imp++....Questions........ 11 29 Aug 2013, 23:18
Very Helpful Review on Permutations and Combinations 0 09 Jun 2011, 10:16
1 Finding Gmatclub Tests very hard 10 18 Jun 2015, 05:06
Very confused PS 6 12 Feb 2010, 19:14
Display posts from previous: Sort by