It is currently 19 Feb 2018, 02:09

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Sequence S consists of 24 nonzero integers. If each term in

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Senior Manager
Senior Manager
avatar
S
Joined: 15 Jan 2017
Posts: 359
CAT Tests
Re: Sequence S consists of 24 nonzero integers. If each term in [#permalink]

Show Tags

New post 10 Oct 2017, 09:19
Agree with B. Was on D till I re-read for 24 NON ZERO integers --> which means they are all the same sign (either all +ve or all -ve)

St 1: Term 3 is +ve.
Case 1: 0,a,b..--> a,b,ab (terms 3 is +ve)
Case 2: -b, -a, 0 --> -a, -b then (-a) (-b) = ab. Thus signs can be different so NOT SUFF in terms of exact number of -ve terms.

St 2: Term 4 is -ve. can only happen when : -a, -b, ab, -ab Sq, -a sq b cubed. Thus since we know the signs we can count the number of -ve terms. SUFF
Senior Manager
Senior Manager
avatar
S
Joined: 02 Apr 2014
Posts: 393
Sequence S consists of 24 nonzero integers. If each term in [#permalink]

Show Tags

New post 11 Nov 2017, 11:59
Statement 1:

seq possible: \(+ + + +\) ......... => No negatives
seq possible: \(- - + - - +\)..... => there are negative integers

InSuff

Statement 2:

4th term is negative:
Seq possible : - - + - - + - - + ......
Seq possible : - + - - + - - + ........

If you look closely, pattern of " - - + " repeats itself as " - + - ". in the another sequence.
So as long as the number of elements is multiple of 3, both seq of both patterns will have same number of -ve signs.
Promptly the question says number of elements is 24, so both seq will have same number of -ve integers and we will be to find count => sufficient

Answer (B)
Sequence S consists of 24 nonzero integers. If each term in   [#permalink] 11 Nov 2017, 11:59

Go to page   Previous    1   2   [ 22 posts ] 

Display posts from previous: Sort by

Sequence S consists of 24 nonzero integers. If each term in

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.