It is currently 13 Dec 2017, 05:24

Decision(s) Day!:

CHAT Rooms | Ross R1 | Kellogg R1 | Darden R1 | Tepper R1


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

If R is an integer, is R evenly divisible by 3?

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

Hide Tags

Manager
Manager
User avatar
Joined: 11 Feb 2011
Posts: 130

Kudos [?]: 258 [0], given: 21

If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 15 Jun 2011, 10:31
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

68% (00:31) correct 32% (00:34) wrong based on 101 sessions

HideShow timer Statistics

If R is an integer, is R evenly divisible by 3?

(1) 2R is evenly divisible by 3
(2) 3R is evenly divisible by 3

OPEN DISCUSSION OF THIS QUESTION IS HERE: https://gmatclub.com/forum/if-r-is-an-i ... 95600.html
[Reveal] Spoiler: OA

_________________

target:-810 out of 800!

Kudos [?]: 258 [0], given: 21

Senior Manager
Senior Manager
avatar
Joined: 24 Mar 2011
Posts: 428

Kudos [?]: 223 [0], given: 20

Location: Texas
Re: If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 15 Jun 2011, 11:58
should the question not be -

If R is an integer ,is R exactly divisible by 3?
a. 2R is exactly divisible by 3.
b. 3R is exactly divisible by 3.

st -1 mentions that 2R is exactly divisible by 3
meaning R has to be multiple of 3.
sufficient.

st-2 - 3R is exactly divisible by 3. meaning R could be 2 in which case 3R=6 is exactly divisible by 3.
and R could be 3 in which case 3R = 9 is exactly divisible by 3.
But in case 1, then R is not divisible by 3, and in 2nd case R is divisible by 3.
so not sufficient.

Answer - A

Kudos [?]: 223 [0], given: 20

Manager
Manager
avatar
Joined: 02 Jun 2011
Posts: 149

Kudos [?]: 107 [0], given: 11

Re: If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 04 Aug 2011, 04:12
If R is an integer, is R evenly divisible by 3?

(1) 2R is evenly divisible by 3
(2) 3R is evenly divisible by 3

[Reveal] Spoiler:
the answer is A, cant we say D, why cant we say D?
2R is divisible by3 -ok
so is 3R ! if R is evenly divisible by 3, then it must be with 3R in 3 ?

Kudos [?]: 107 [0], given: 11

VP
VP
User avatar
S
Status: Top MBA Admissions Consultant
Joined: 24 Jul 2011
Posts: 1354

Kudos [?]: 663 [0], given: 20

GMAT 1: 780 Q51 V48
GRE 1: 1540 Q800 V740
Re: If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 04 Aug 2011, 04:41
The answer is (A).

Statement (1): If 2R is divisible by 3, then R has to be divisible by 3, because multiplying R by 2 does not multiply it by a multiple of 3. Sufficient.
Statement (2): If 3R is divisible by 3, then R may or may not be divisible by 3. Example: 21 (3x7) is divisible by 3, but 7 is not. Similarly, 18 (3x6) is divisible by 3, and so is 6. Not sufficient.

The answer is (A).
_________________

GyanOne | Top MBA Rankings and MBA Admissions Blog

Top MBA Admissions Consulting | Top MiM Admissions Consulting

Premium MBA Essay Review|Best MBA Interview Preparation|Exclusive GMAT coaching

Get a FREE Detailed MBA Profile Evaluation | Call us now +91 98998 31738

Kudos [?]: 663 [0], given: 20

Senior Manager
Senior Manager
avatar
Joined: 18 Sep 2009
Posts: 350

Kudos [?]: 612 [0], given: 2

Re: If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 04 Aug 2011, 06:47
The answer is A.

From (i) 2(r)/3 yields integer value only if r value is divisible by 3. sufficient.

Fro(ii) r couuld be any value if it is divisuble by 3 or not. for ex 3(6)/3=6,6/3=2(true).
3(1)/3=1, 1/3=not an integer (false).

answer is A

Kudos [?]: 612 [0], given: 2

Manager
Manager
avatar
Joined: 12 Jul 2011
Posts: 139

Kudos [?]: 53 [0], given: 42

Concentration: Operations, Strategy
GMAT 1: 680 Q46 V37
WE: Engineering (Telecommunications)
Re: If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 25 Oct 2011, 02:34
Statement 1: Since 2 is not divisible by 3, R should be a divisible by 3 for 2R to be divisible. Hence sufficient.
Statement 2: This statement is not sufficient as 3 is divisible by 3 and we cannot make out from this whether R can be divided or not.
SO the answer is A.

Kudos [?]: 53 [0], given: 42

SVP
SVP
User avatar
B
Joined: 06 Nov 2014
Posts: 1903

Kudos [?]: 549 [0], given: 23

Re: If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 19 Apr 2016, 00:20
kashishh wrote:
Q. if R is an integer, is R evenly divisible by 3
1. 2R is evenly divisible by 3
2. 3R is evenly divisible by 3


Statement 1: 2R is evenly divisible by 3
Since 2 is not a multiple of 3, hence # should be a multiple of 3
Sufficient

Statement 2: 3R is evenly divisible by 3
Since 3 is a multiple of 3, R may or may not be a multiple of 3
Case 1: R = 2, 3R = 6. Here R is not a multiple of 3.
Case 2: R = 3, 3R = 9. Here R is a multiple of 3.
Insufficient

Correct option: A

Kudos [?]: 549 [0], given: 23

Expert Post
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42579

Kudos [?]: 135467 [0], given: 12695

Re: If R is an integer, is R evenly divisible by 3? [#permalink]

Show Tags

New post 26 Nov 2017, 23:21

Kudos [?]: 135467 [0], given: 12695

Re: If R is an integer, is R evenly divisible by 3?   [#permalink] 26 Nov 2017, 23:21
Display posts from previous: Sort by

If R is an integer, is R evenly divisible by 3?

  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®.