It is currently 19 Mar 2018, 11:42

### 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 June
Open Detailed Calendar

# If i and j are integers, is i+j an even integer? 1) i <

Author Message
Manager
Joined: 10 Apr 2008
Posts: 53
If i and j are integers, is i+j an even integer? 1) i < [#permalink]

### Show Tags

13 Sep 2008, 18:58
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

This topic is locked. If you want to discuss this question please re-post it in the respective forum.

If i and j are integers, is i+j an even integer?

1) i < 10
2) i = j

Manager
Joined: 28 Aug 2008
Posts: 98

### Show Tags

13 Sep 2008, 19:15
IMO.... B

1) Insf .... i + j can either be even or odd (2+4 or 2+3)

2) Suf.... i + j will always be even where i=j given that i and J are integers, check it out

0+0= 0 (even integer)
-27 + -27 = -54
-12 + -12 = -24
3 + 3 = 6
8 + 8 = 16
100 + 100 =200
3001+3001= 6002 etc...
Intern
Joined: 26 Aug 2008
Posts: 15

### Show Tags

13 Sep 2008, 19:22
Okay when a DS question asks something that has multi variables in it...most of the statements will be insufficient if they don't include information for all of the variables.

1) i < 10

is an infinite set of numbers...and we have no idea what J is...this is INSUF

on your paper CROSS A & D

look at statement 2 and forget about statement 1..

I=J hmm

so if you rewrite what questions asks you..I+J = I+I = J+J = 2I = 2J

Well this is the mathematical expression of an even number ---> 2N

so this is SUF.

Choose B, confirm it and move on

thinkblue wrote:
If i and j are integers, is i+j an even integer?

1) i < 10
2) i = j

Manager
Joined: 10 Apr 2008
Posts: 53

### Show Tags

13 Sep 2008, 19:24
Aah so 0 SHOULD be an even integer?
I thought that 0 was neither odd nor even. Ok that makes sense now.

Thanks!
Manager
Joined: 10 Apr 2008
Posts: 53

### Show Tags

13 Sep 2008, 19:24
Forgot to mention that the OA is B
VP
Joined: 17 Jun 2008
Posts: 1328

### Show Tags

13 Sep 2008, 23:36
thinkblue wrote:
If i and j are integers, is i+j an even integer?

1) i < 10
2) i = j

IMO B .I found this one easy
Given that : i,j integers can be any even or odd

to prove i+j=even or not

(1)i<10 does not indicate i is even or odd neither any clue about j hence insufficien
(2)i=j means whether i is even or off i+j=2*i must be even ANSWERS SUFFI
IMO B
_________________

cheers
Its Now Or Never

SVP
Joined: 17 Jun 2008
Posts: 1507

### Show Tags

15 Sep 2008, 00:45
thinkblue wrote:
Aah so 0 SHOULD be an even integer?
I thought that 0 was neither odd nor even. Ok that makes sense now.

Thanks!

Yes. 0 is treated as an even integer.
Re: OG DS #25   [#permalink] 15 Sep 2008, 00:45
Display posts from previous: Sort by