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

It is currently 19 May 2019, 17:38

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

If x is the sum of n odd integers, which of the following must be true

  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: 55150
If x is the sum of n odd integers, which of the following must be true  [#permalink]

Show Tags

New post 21 Nov 2018, 23:40
1
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

81% (01:05) correct 19% (00:55) wrong based on 66 sessions

HideShow timer Statistics

CEO
CEO
User avatar
P
Joined: 18 Aug 2017
Posts: 3451
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
GMAT ToolKit User Premium Member CAT Tests
Re: If x is the sum of n odd integers, which of the following must be true  [#permalink]

Show Tags

New post 22 Nov 2018, 00:39
Bunuel wrote:
If x is the sum of n odd integers, which of the following must be true?

A. x is odd.
B. x is even.
C. x≠0
D. If x is even, n is even.
E. If n is odd, x is even.


IMO D only satisfies the given relation , as for sum x to be even we need to have even count of odd integers...
_________________
If you liked my solution then please give Kudos. Kudos encourage active discussions.
VP
VP
User avatar
P
Joined: 31 Oct 2013
Posts: 1349
Concentration: Accounting, Finance
GPA: 3.68
WE: Analyst (Accounting)
Re: If x is the sum of n odd integers, which of the following must be true  [#permalink]

Show Tags

New post 22 Nov 2018, 01:12
Bunuel wrote:
If x is the sum of n odd integers, which of the following must be true?

A. x is odd.
B. x is even.
C. x≠0
D. If x is even, n is even.
E. If n is odd, x is even.



plugging number will help.

D is our answer.

n = 4

1 + 3 + 5 + 7 = 16

if n=4 x=16.
Manager
Manager
avatar
B
Joined: 12 Apr 2017
Posts: 70
Location: United States
Concentration: Finance, Operations
GPA: 3.1
Re: If x is the sum of n odd integers, which of the following must be true  [#permalink]

Show Tags

New post 30 Nov 2018, 09:09
1
D

1, 3, 5, 7,

N = 2, 3, 4
X = 4, 9, 16

N = even, X = even,

since integers for ever positive odd you can do the reciprocal and get 0, so C is out, A & B are easily proven wrong, and D disproves E.
GMAT Club Bot
Re: If x is the sum of n odd integers, which of the following must be true   [#permalink] 30 Nov 2018, 09:09
Display posts from previous: Sort by

If x is the sum of n odd integers, which of the following must be true

  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®.