Find all School-related info fast with the new School-Specific MBA Forum

It is currently 18 Sep 2014, 01:50

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Series - M3 - 29

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
avatar
Joined: 30 Nov 2008
Posts: 494
Schools: Fuqua
Followers: 10

Kudos [?]: 123 [0], given: 15

GMAT Tests User
Series - M3 - 29 [#permalink] New post 13 Oct 2009, 20:18
A computer generated a consecutive set of numbers using the following formula:

An = A1 + ((n-1)*d) where d is the common difference between any two consecutive numbers of set .

If the sum of the second and the fifth number in the set is 8, and the sum of the third and the seventh number is 14, what is the first number in set ?

A) 3
B) 2
C) 1
D) -1
E) -3

I know how the problem can be solved. But I was confused with the word consecutive. Can we have the word consecutive when the numbers in the set are really not consecutive rather equidistant? :(
CEO
CEO
User avatar
Joined: 29 Aug 2007
Posts: 2501
Followers: 53

Kudos [?]: 506 [0], given: 19

GMAT Tests User
Re: Series - M3 - 29 [#permalink] New post 13 Oct 2009, 21:04
mrsmarthi wrote:
A computer generated a consecutive set of numbers using the following formula:

An = A1 + ((n-1)*d) where d is the common difference between any two consecutive numbers of set .

If the sum of the second and the fifth number in the set is 8, and the sum of the third and the seventh number is 14, what is the first number in set ?

A) 3
B) 2
C) 1
D) -1
E) -3

I know how the problem can be solved. But I was confused with the word consecutive. Can we have the word consecutive when the numbers in the set are really not consecutive rather equidistant? :(


There are only 3 connsecutive integers:

1. Connsecutive integers: 1, 2, 3, 4, 5,........
2. Connsecutive even integers: 2, 4, 6........
3. Connsecutive odd integers: 1, 3, 5,........

1, 5, 9, 13, .......
0, 5, 10, 15, .......
10, 20, 30, 40, 50 .......

None of the above are consecutive integers..
_________________

Verbal: new-to-the-verbal-forum-please-read-this-first-77546.html
Math: new-to-the-math-forum-please-read-this-first-77764.html
Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT

Senior Manager
Senior Manager
avatar
Joined: 30 Nov 2008
Posts: 494
Schools: Fuqua
Followers: 10

Kudos [?]: 123 [0], given: 15

GMAT Tests User
Re: Series - M3 - 29 [#permalink] New post 13 Oct 2009, 21:21
GMAT Tiger,

I do agree with you regarding the definition of consecutive integers, consecutive even and consecutive odd integers. But my question is - wil be below also be called consecutive?

3,6,9....

My impression is when the question says consecutive numbers, the difference between adjacent numbers must be +/- 1.

I think the question is misleading by specifying the word - consecutive while rather difference is 2.

Can anyone please comment on my understanding.
CEO
CEO
User avatar
Joined: 29 Aug 2007
Posts: 2501
Followers: 53

Kudos [?]: 506 [0], given: 19

GMAT Tests User
Re: Series - M3 - 29 [#permalink] New post 13 Oct 2009, 21:33
mrsmarthi wrote:
GMAT Tiger,

I do agree with you regarding the definition of consecutive integers, consecutive even and consecutive odd integers. But my question is - wil be below also be called consecutive?

3,6,9....

My impression is when the question says consecutive numbers, the difference between adjacent numbers must be +/- 1.

I think the question is misleading by specifying the word - consecutive while rather difference is 2.

Can anyone please comment on my understanding.


Nope. As I said earlier, none of the followings are consecutive integers..


3,6,9....
1, 5, 9, 13, .......
0, 5, 10, 15, .......
10, 20, 30, 40, 50 .......
_________________

Verbal: new-to-the-verbal-forum-please-read-this-first-77546.html
Math: new-to-the-math-forum-please-read-this-first-77764.html
Gmat: everything-you-need-to-prepare-for-the-gmat-revised-77983.html


GT

Re: Series - M3 - 29   [#permalink] 13 Oct 2009, 21:33
    Similar topics Author Replies Last post
Similar
Topics:
2 Series aeros232 4 28 May 2011, 16:02
M3#25 artuurss 2 09 Oct 2009, 02:09
Series hidalgo01 3 07 Oct 2007, 08:10
PS with series rxs0005 2 20 Nov 2006, 11:48
PS: Series haas_mba07 3 06 Aug 2006, 19:32
Display posts from previous: Sort by

Series - M3 - 29

  Question banks Downloads My Bookmarks Reviews Important topics  

Moderators: Bunuel, WoundedTiger



GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.