GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 21 Nov 2018, 12:20

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 in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • All GMAT Club Tests are Free and open on November 22nd in celebration of Thanksgiving Day!

     November 22, 2018

     November 22, 2018

     10:00 PM PST

     11:00 PM PST

    Mark your calendars - All GMAT Club Tests are free and open November 22nd to celebrate Thanksgiving Day! Access will be available from 0:01 AM to 11:59 PM, Pacific Time (USA)
  • Key Strategies to Master GMAT SC

     November 24, 2018

     November 24, 2018

     07:00 AM PST

     09:00 AM PST

    Attend this webinar to learn how to leverage Meaning and Logic to solve the most challenging Sentence Correction Questions.

If rs ≠ 0, is t an integer? (1) t = 3r – 2s (2) r = s

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 50730
If rs ≠ 0, is t an integer? (1) t = 3r – 2s (2) r = s  [#permalink]

Show Tags

New post 12 Oct 2017, 03:15
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

89% (00:51) correct 11% (01:22) wrong based on 76 sessions

HideShow timer Statistics

PS Forum Moderator
avatar
D
Joined: 25 Feb 2013
Posts: 1217
Location: India
GPA: 3.82
GMAT ToolKit User Premium Member Reviews Badge
If rs ≠ 0, is t an integer? (1) t = 3r – 2s (2) r = s  [#permalink]

Show Tags

New post 12 Oct 2017, 07:12
Bunuel wrote:
If rs ≠ 0, is t an integer?

(1) t = 3r – 2s
(2) r = s


Statement 1: if \(r\) & \(s\) are integers then \(t\) is integer, if not then \(t\) may or may not be an integer. hence insufficient

Statement 2: no information about \(t\). Hence insufficient

Combining 1 & 2 we get \(t=3r-2r=r\), if \(r\) is an integer then \(t\) is an integer if not then \(t\) is not an integer. Hence insufficient

Option E
SVP
SVP
User avatar
D
Joined: 26 Mar 2013
Posts: 1891
Reviews Badge CAT Tests
Re: If rs ≠ 0, is t an integer? (1) t = 3r – 2s (2) r = s  [#permalink]

Show Tags

New post 12 Oct 2017, 22:58
Bunuel wrote:
If rs ≠ 0, is t an integer?

(1) t = 3r – 2s
(2) r = s



(2) r = s

No info about t

Insufficient

(1) t = 3r – 2s

Let r = s = 1....t = 1.............Answer is Yes

Let r = s = 1/2..t = 1/2.............Answer is No

Insufficient

Combine 1 & 2

I considered r = s in examples above.......No clear answer answer

Insufficient

Answer: E
Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2830
Re: If rs ≠ 0, is t an integer? (1) t = 3r – 2s (2) r = s  [#permalink]

Show Tags

New post 27 Nov 2017, 18:16
Bunuel wrote:
If rs ≠ 0, is t an integer?

(1) t = 3r – 2s
(2) r = s


Statement One Alone:

t = 3r – 2s

If r = 1 and s = 1, then 3r - 2s = 1 and t is an integer; however, if r = 1/2 and s = 1, then 3r - 2s = -0.5 and t is not an integer. Statement one alone is not sufficient to answer the question.

Statement Two Alone:

r = s

Since statement two does not provide any information regarding t, statement two alone is not sufficient to answer the question.

Statements One and Two Together:

Using the statements together, we have t = 3r - 2r, or t = r. However, since we do not know whether r is an integer, we cannot determine whether t is an integer.

Answer: E
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

GMAT Club Bot
Re: If rs ≠ 0, is t an integer? (1) t = 3r – 2s (2) r = s &nbs [#permalink] 27 Nov 2017, 18:16
Display posts from previous: Sort by

If rs ≠ 0, is t an integer? (1) t = 3r – 2s (2) r = s

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.