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

It is currently 17 Jan 2019, 19:34

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 January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
  • The winning strategy for a high GRE score

     January 17, 2019

     January 17, 2019

     08:00 AM PST

     09:00 AM PST

    Learn the winning strategy for a high GRE score — what do people who reach a high score do differently? We're going to share insights, tips and strategies from data we've collected from over 50,000 students who used examPAL.
  • Free GMAT Strategy Webinar

     January 19, 2019

     January 19, 2019

     07:00 AM PST

     09:00 AM PST

    Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.

If a and b are odd integers which of the following must be an even int

  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: 52231
If a and b are odd integers which of the following must be an even int  [#permalink]

Show Tags

New post 01 Nov 2016, 03:43
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

93% (00:50) correct 7% (01:12) wrong based on 86 sessions

HideShow timer Statistics

CEO
CEO
User avatar
P
Status: GMATINSIGHT Tutor
Joined: 08 Jul 2010
Posts: 2723
Location: India
GMAT: INSIGHT
Schools: Darden '21
WE: Education (Education)
Reviews Badge
Re: If a and b are odd integers which of the following must be an even int  [#permalink]

Show Tags

New post 01 Nov 2016, 05:05
Bunuel wrote:
If a and b are odd integers which of the following must be an even integer?

A. a/b
B. ab
C. (ab)^2
D. ab + b
E. (a + b)/b


Checking Options:

A. a/b Odd/Odd is never Even hence Incorrect Option
B. ab Odd*Odd is odd and never Even hence Incorrect Option
C. (ab)^2 Odd*Odd is Odd and the square of Odd also is odd hence Incorrect Option
D. ab + b Odd*Odd+Odd = Odd+Odd = Even hence Correct Option
E. (a + b)/b

Answer Option D
_________________

Prosper!!!
GMATinsight
Bhoopendra Singh and Dr.Sushma Jha
e-mail: info@GMATinsight.com I Call us : +91-9999687183 / 9891333772
Online One-on-One Skype based classes and Classroom Coaching in South and West Delhi
http://www.GMATinsight.com/testimonials.html

ACCESS FREE GMAT TESTS HERE:22 ONLINE FREE (FULL LENGTH) GMAT CAT (PRACTICE TESTS) LINK COLLECTION

Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4330
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member CAT Tests
Re: If a and b are odd integers which of the following must be an even int  [#permalink]

Show Tags

New post 01 Nov 2016, 06:36
Bunuel wrote:
If a and b are odd integers which of the following must be an even integer?

A. a/b
B. ab
C. (ab)^2
D. ab + b
E. (a + b)/b


Certainly (D)

\(ab + b = b ( a + 1 )\)

Sine both a & b are ODD , we can say ( a + 1 ) is EVEN as ODD + 1 = EVEN

Hence there is no doubt that the OA must be (D)
_________________

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 )

Senior Manager
Senior Manager
avatar
Joined: 06 Jun 2016
Posts: 258
Location: India
Concentration: Operations, Strategy
Schools: ISB '18 (D)
GMAT 1: 600 Q49 V23
GMAT 2: 680 Q49 V34
GPA: 3.9
If a and b are odd integers which of the following must be an even int  [#permalink]

Show Tags

New post 02 Nov 2016, 04:59
Bunuel wrote:
If a and b are odd integers which of the following must be an even integer?

A. a/b
B. ab
C. (ab)^2
D. ab + b
E. (a + b)/b



IMO D
A. a/b odd/odd=odd
B. ab odd*odd=odd
C. (ab)^2 (odd*odd)^2=odd
D. ab + b odd+odd=even
E. (a + b)/b even/odd=fraction or even
Manager
Manager
avatar
S
Joined: 18 Oct 2016
Posts: 139
Location: India
WE: Engineering (Energy and Utilities)
Re: If a and b are odd integers which of the following must be an even int  [#permalink]

Show Tags

New post 13 Apr 2017, 00:13
Option D

a,b are Odd integers. Odd: O & Even: E

a) O/O = O
b) O*O = O
c) (O*O)^2 = O
d) O*O + O = O + O = E
e) (O + O)/O = E/O = E or Fraction
_________________

Press Kudos if you liked the post!

Rules for posting - PLEASE READ BEFORE YOU POST

GMAT Club Bot
Re: If a and b are odd integers which of the following must be an even int &nbs [#permalink] 13 Apr 2017, 00:13
Display posts from previous: Sort by

If a and b are odd integers which of the following must be an even int

  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®.