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

 It is currently 20 Nov 2018, 20:00

### 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

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

## Events & Promotions

###### 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)
• ### Free lesson on number properties

November 23, 2018

November 23, 2018

10:00 PM PST

11:00 PM PST

Practice the one most important Quant section - Integer properties, and rapidly improve your skills.

# If k is an odd integer, which of the following must be an even integer

Author Message
TAGS:

### Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 50711
If k is an odd integer, which of the following must be an even integer  [#permalink]

### Show Tags

28 Oct 2018, 22:45
00:00

Difficulty:

15% (low)

Question Stats:

79% (00:36) correct 21% (00:30) wrong based on 53 sessions

### HideShow timer Statistics

If k is an odd integer, which of the following must be an even integer?

A. $$k^2 – 4$$

B. $$3k + 2$$

C. $$2k + 1$$

D. $$\frac{12k}{8}$$

E. $$\frac{6k}{3}$$

_________________
Senior Manager
Joined: 18 Jul 2018
Posts: 374
Location: India
Concentration: Finance, Marketing
WE: Engineering (Energy and Utilities)
Re: If k is an odd integer, which of the following must be an even integer  [#permalink]

### Show Tags

28 Oct 2018, 22:49
Option E will be 2k. Which will always be even.

_________________

When you want something, the whole universe conspires in helping you achieve it.

Director
Joined: 06 Jan 2015
Posts: 518
Location: India
Concentration: Operations, Finance
GPA: 3.35
WE: Information Technology (Computer Software)
Re: If k is an odd integer, which of the following must be an even integer  [#permalink]

### Show Tags

28 Oct 2018, 22:49
Bunuel wrote:
If k is an odd integer, which of the following must be an even integer?

A. $$k^2 – 4$$

B. $$3k + 2$$

C. $$2k + 1$$

D. $$\frac{12k}{8}$$

E. $$\frac{6k}{3}$$

$$\frac{6k}{3}$$ ==> 2K Will be always even

Hence E
_________________

आत्मनॊ मोक्षार्थम् जगद्धिताय च

Resource: GMATPrep RCs With Solution

Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4230
Location: India
GPA: 3.5
Re: If k is an odd integer, which of the following must be an even integer  [#permalink]

### Show Tags

29 Oct 2018, 08:10
Bunuel wrote:
If k is an odd integer, which of the following must be an even integer?

A. $$k^2 – 4$$

B. $$3k + 2$$

C. $$2k + 1$$

D. $$\frac{12k}{8}$$

E. $$\frac{6k}{3}$$

Plug in any value of k and check, let k = 3

(A) 5
(B) 11
(C) 7
(D) 4.5
(E) 6 , Thus Answer must be (E)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Manager
Joined: 13 Jun 2012
Posts: 202
Location: United States
WE: Supply Chain Management (Computer Hardware)
Re: If k is an odd integer, which of the following must be an even integer  [#permalink]

### Show Tags

29 Oct 2018, 08:55
Bunuel wrote:
If k is an odd integer, which of the following must be an even integer?

A. $$k^2 – 4$$

B. $$3k + 2$$

C. $$2k + 1$$

D. $$\frac{12k}{8}$$

E. $$\frac{6k}{3}$$

$$\frac{6k}{3}$$ --- Will always be even coz 6k/3 is 2K
Intern
Joined: 20 Sep 2018
Posts: 30
Re: If k is an odd integer, which of the following must be an even integer  [#permalink]

### Show Tags

29 Oct 2018, 16:52
Bunuel wrote:
If k is an odd integer, which of the following must be an even integer?

A. $$k^2 – 4$$

B. $$3k + 2$$

C. $$2k + 1$$

D. $$\frac{12k}{8}$$

E. $$\frac{6k}{3}$$

A, B, C. Always odd
D. Fraction.
E. 2k. Even.

E!
Target Test Prep Representative
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 4170
Location: United States (CA)
Re: If k is an odd integer, which of the following must be an even integer  [#permalink]

### Show Tags

30 Oct 2018, 18:07
Bunuel wrote:
If k is an odd integer, which of the following must be an even integer?

A. $$k^2 – 4$$

B. $$3k + 2$$

C. $$2k + 1$$

D. $$\frac{12k}{8}$$

E. $$\frac{6k}{3}$$

Since 6k/3 = 2k and 2k is a multiple of 2, then it must be even.

_________________

Scott Woodbury-Stewart
Founder and CEO

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

Re: If k is an odd integer, which of the following must be an even integer &nbs [#permalink] 30 Oct 2018, 18:07
Display posts from previous: Sort by