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

It is currently 26 Nov 2014, 08:15

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

What is the value of j? (1) j + j = 2j (2) j^2 = (7.435)j^2

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Current Student
User avatar
Joined: 29 Jan 2005
Posts: 5250
Followers: 23

Kudos [?]: 148 [0], given: 0

Reviews Badge
What is the value of j? (1) j + j = 2j (2) j^2 = (7.435)j^2 [#permalink] New post 03 Nov 2005, 00:23
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
What is the value of j?

(1) j + j = 2j
(2) j^2 = (7.435)j^2
SVP
SVP
User avatar
Joined: 24 Sep 2005
Posts: 1898
Followers: 11

Kudos [?]: 113 [0], given: 0

Re: DS Algebra [#permalink] New post 03 Nov 2005, 01:50
GMATT73 wrote:
What is the value of j?

(1) j + j = 2j
(2) j^2 = (7.435)j^2


(1) 2j=2j --> all value of j are fine ---> insuff
(2) in case j= 0. (2) is correct
j <>0 --> 1= 7.435 , this is illogical
so from (2) we can find j= 0 ---> suff
Senior Manager
Senior Manager
User avatar
Joined: 14 Apr 2005
Posts: 422
Location: India, Chennai
Followers: 1

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

Re: DS Algebra [#permalink] New post 03 Nov 2005, 04:00
GMATT73 wrote:
What is the value of j?

(1) j + j = 2j
(2) j^2 = (7.435)j^2


From 1 we get 2j = 2j this is true for all values of j, so insufficient.

From 2 we get 7.435J^2 - J^2 = 0
=> 6.435j^2 = 0 => j^2=0 or j = 0.

Hence B.
Intern
Intern
avatar
Joined: 30 Oct 2005
Posts: 19
Followers: 0

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

 [#permalink] New post 03 Nov 2005, 04:45
1.
j=0: 0+0=2*0
j=1: 1+1=2*1
j=2: 2+2=2*2
All 3 values of j work -- insuf.

2.
j^2 = 7.435*j^2
this will only work if j=0 -- suff.

Answer is B.
  [#permalink] 03 Nov 2005, 04:45
    Similar topics Author Replies Last post
Similar
Topics:
What is the value of integer J? 1. |J| = J^{-1} 2. J^J = 1 bassiseema 4 17 Jul 2009, 08:31
What is the integer value of J? 1) | J | = J^-1 2) J^J = 1 jjhko 7 16 Sep 2008, 20:22
What is the value of integer J? 1. |J|= J^-1 2.J^J=1 x2suresh 14 03 Sep 2008, 13:21
What is the value of integer J? 1) |J| = J^(-1) 2) J^J = 1 leeye84 16 13 Aug 2007, 12:58
What is the value of integer J? (1) mod{J} = J^-1 (2) J^J = arjunmadan 11 17 Jul 2007, 19:24
Display posts from previous: Sort by

What is the value of j? (1) j + j = 2j (2) j^2 = (7.435)j^2

  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®.