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

It is currently 24 Oct 2014, 02:05

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

In the infinite sequence S, each term S(n) after S(2) is

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Current Student
User avatar
Joined: 29 Jan 2005
Posts: 5252
Followers: 23

Kudos [?]: 140 [0], given: 0

Reviews Badge
In the infinite sequence S, each term S(n) after S(2) is [#permalink] New post 01 Dec 2005, 05:42
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
In the infinite sequence S, each term S(n) after S(2) is equal to the sum of the two terms S(n-1) and S(n-2). If S(1) is 4, what is the value of S(2)?

1. S(3)=7
2. S(4)=10
SVP
SVP
User avatar
Joined: 24 Sep 2005
Posts: 1898
Followers: 10

Kudos [?]: 110 [0], given: 0

Re: DS Sequence [#permalink] New post 01 Dec 2005, 05:56
GMATT73 wrote:
In the infinite sequence S, each term S(n) after S(2) is equal to the sum of the two terms S(n-1) and S(n-2). If S(1) is 4, what is the value of S(2)?

1. S(3)=7
2. S(4)=10


1. S(3)= S(1)+S(2) ---> S(2)= S(3)- S(1)= 7-4=3 --->suff
2. S(4)=S(3)+S(2)= S(1)+S(2)+S(2)= S(1)+2S(2) ----> S(2)= (10-4)/2= 3 ---->suff
Current Student
User avatar
Joined: 29 Jan 2005
Posts: 5252
Followers: 23

Kudos [?]: 140 [0], given: 0

Reviews Badge
Re: DS Sequence [#permalink] New post 01 Dec 2005, 06:01
laxieqv wrote:
GMATT73 wrote:
In the infinite sequence S, each term S(n) after S(2) is equal to the sum of the two terms S(n-1) and S(n-2). If S(1) is 4, what is the value of S(2)?

1. S(3)=7
2. S(4)=10


1. S(3)= S(1)+S(2) ---> S(2)= S(3)- S(1)= 7-4=3 --->suff
2. S(4)=S(3)+S(2)= S(1)+S(2)+S(2)= S(1)+2S(2) ----> S(2)= (10-4)/2= 3 ---->suff


Thanx Laxie. Didn`t see that trick in statement 2.

OA is of course D.
Senior Manager
Senior Manager
User avatar
Joined: 14 Apr 2005
Posts: 422
Location: India, Chennai
Followers: 1

Kudos [?]: 3 [0], given: 0

Re: DS Sequence [#permalink] New post 02 Dec 2005, 03:45
From 1 we get S3= S2+S1
7=S2+4
=>S2=3 Suff.
From 2 we get S4=S2+S3
S4=S2+S2+S1=2S2+S1
10 = 2S2+4 => S2=3 Suff.
Hence D.
Re: DS Sequence   [#permalink] 02 Dec 2005, 03:45
    Similar topics Author Replies Last post
Similar
Topics:
8 Experts publish their posts in the topic If S is the infinite sequence S1 = 6, S2 = 12, ..., Sn = Sn- anilnandyala 14 04 Oct 2010, 06:17
3 Experts publish their posts in the topic In the infinite sequence a1, a2, a3, ..., an, each term after the firs ITC 4 21 Apr 2010, 05:49
3 If S is the infinite sequence S1 = 6, S2 = 12, ..., Sn = bmwhype2 7 15 Feb 2008, 13:34
Experts publish their posts in the topic In the infinite sequence a1, a2, a3.....an, each term after inwosu 4 04 Jan 2008, 04:07
In a sequence, after the first two terms, each term is the getzgetzu 1 21 Apr 2006, 03:16
Display posts from previous: Sort by

In the infinite sequence S, each term S(n) after S(2) is

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.