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.

It appears that you are browsing the GMAT Club forum unregistered!

Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club

Registration gives you:

Tests

Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.

Applicant Stats

View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more

Books/Downloads

Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!

Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:

Re: If n is an integer, which of the following must be even? [#permalink]

Show Tags

18 Sep 2012, 06:18

2

This post received KUDOS

Bunuel wrote:

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

(A) n+1 (B) n+2 (C) 2n (D) 2n +1 (E) n^2

Since n is an integer, it can be EVEN or ODD. But any integer when multiplied by 2 is even. For example, 3 * 2 = 6 (even) The rule is: EVEN * ODD = EVEN EVEN * EVEN = EVEN ODD * ODD = ODD

A) we cant say as it depends if n is odd or even B) same as A) C) Even as n is multiplied by 2 D) It is ODD as EVEN+1 = ODD E) depends if n is even or odd.

Re: If n is an integer, which of the following must be even? [#permalink]

Show Tags

24 May 2014, 01:34

1

This post was BOOKMARKED

I thought that an integer could be 0. If that is the case, then 2*(0), would equal 0, which is not equal an even number. Thus, it does not answer the question. Can someone please clarify? Thanks.

Re: If n is an integer, which of the following must be even? [#permalink]

Show Tags

24 May 2014, 03:13

1

This post received KUDOS

Can you please clarify. My understanding is that 0 is an integer. If that the case you cant say any integer multiplied by an even number equals an even number. Because 0 multiplied by an even number equals 0, which is not an even number.

Im wondering if this question is erroneous. Shouldnt the question state any "if n is a positive or negative integer..."?

Can you please clarify. My understanding is that 0 is an integer. If that the case you cant say any integer multiplied by an even number equals an even number. Because 0 multiplied by an even number equals 0, which is not an even number.

Im wondering if this question is erroneous. Shouldnt the question state any "if n is a positive or negative integer..."?

Zero is an even integer. Zero is nether positive nor negative, but zero is definitely an even number.

An even number is an integer that is "evenly divisible" by 2, i.e., divisible by 2 without a remainder and as zero is evenly divisible by 2 then it must be even (in fact zero is divisible by every integer except zero itself).

Re: If n is an integer, which of the following must be even? [#permalink]

Show Tags

22 Dec 2015, 19:29

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

Re: If n is an integer, which of the following must be even? [#permalink]

Show Tags

27 May 2016, 07:24

Bunuel wrote:

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

(A) n+1 (B) n+2 (C) 2n (D) 2n +1 (E) n^2

To solve this question, we need to consider a few odd/even rules.

1) (even + even) or (odd + odd) = even

2) even + odd = odd

3) (even x even) or (even x odd) = even (Note that an even integer times any integer, whether even or odd, will yield an even answer for the product.)

4) odd x odd = odd

Doing a quick scan of our answer choices allows us to select C as the correct option. Regardless whether n is even or odd, 2 (which is even) times any integer will always be even.

The answer is C.
_________________

Jeffrey Miller Jeffrey Miller Head of GMAT Instruction

Re: If n is an integer, which of the following must be even? [#permalink]

Show Tags

05 Jul 2016, 03:54

Bunuel wrote:

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

(A) n+1 (B) n+2 (C) 2n (D) 2n +1 (E) n^2

Practice Questions Question: 44 Page: 158 Difficulty: 550

I think you forgot about zero In one of the prep author considered "0" neither even nor odd. if we consider "0", which I assume is not, as an even number it would be C

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

(A) n+1 (B) n+2 (C) 2n (D) 2n +1 (E) n^2

Practice Questions Question: 44 Page: 158 Difficulty: 550

I think you forgot about zero In one of the prep author considered "0" neither even nor odd. if we consider "0", which I assume is not, as an even number it would be C

ZERO:

1. 0 is an integer.

2. 0 is an even integer. An even number is an integer that is "evenly divisible" by 2, i.e., divisible by 2 without a remainder and as zero is evenly divisible by 2 then it must be even.

3. 0 is neither positive nor negative integer (the only one of this kind).

4. 0 is divisible by EVERY integer except 0 itself.

After days of waiting, sharing the tension with other applicants in forums, coming up with different theories about invites patterns, and, overall, refreshing my inbox every five minutes to...

I was totally freaking out. Apparently, most of the HBS invites were already sent and I didn’t get one. However, there are still some to come out on...

In early 2012, when I was working as a biomedical researcher at the National Institutes of Health , I decided that I wanted to get an MBA and make the...