Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 23 May 2017, 20:10

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

What is the remainder when p^2 + p is divided by 2? 1) p

 post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Manager
Joined: 28 Feb 2003
Posts: 100
Followers: 1

Kudos [?]: 9 [0], given: 0

What is the remainder when p^2 + p is divided by 2? 1) p [#permalink]

Show Tags

19 May 2003, 03:54
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 1 sessions

HideShow timer Statistics

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

What is the remainder when p^2 + p is divided by 2?

1) p > 2
2) p is an integer
Manager
Joined: 28 Feb 2003
Posts: 100
Followers: 1

Kudos [?]: 9 [0], given: 0

Show Tags

19 May 2003, 21:56
no, the answer is B

from statement 1......
p can be 2.5, 5.7, etc....in which case the remainder will be different....

from statement 2.....
p can be 0, 1, -1, 2, 3, -3, 10,11.......in all the cases the remainder will be zero....therefore 2 alone is sufficient........answer is B
SVP
Joined: 03 Feb 2003
Posts: 1604
Followers: 9

Kudos [?]: 268 [0], given: 0

Show Tags

19 May 2003, 22:52
sure it is B.

Take a look at p(p+1) -- a product of two CONSEQUTIVE numbers. One of them HAS to be EVEN. This fact is sufficient to insist that the remainder when divided by 2 is 0.
Intern
Joined: 04 Nov 2004
Posts: 15
Location: Hamilton Ontario
Followers: 0

Kudos [?]: 2 [0], given: 0

Show Tags

30 Nov 2004, 20:37
I look at it like this

p^2 + p

if p is an integer then its either even or even.

IF odd then
odd x odd = odd (p * p)
odd + odd = even (p^2 + p) -which can be divided by 2

IF even then
even x even = even (p * p)
even + even = even (p^2 + p)

Hence B is sufficient.
In (I) if could be 2.5 and there are lot of possibilites.
30 Nov 2004, 20:37
Display posts from previous: Sort by

What is the remainder when p^2 + p is divided by 2? 1) p

 post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO 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®.