It is currently 20 Oct 2017, 23:58

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

Events & Promotions in June
Open Detailed Calendar

Is 70/7^n an integer?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Expert Post
2 KUDOS received
Math Forum Moderator
avatar
P
Joined: 02 Aug 2009
Posts: 4985

Kudos [?]: 5496 [2], given: 112

Is 70/7^n an integer? [#permalink]

Show Tags

New post 03 May 2016, 04:48
2
This post received
KUDOS
Expert's post
1
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

54% (00:52) correct 46% (00:50) wrong based on 50 sessions

HideShow timer Statistics

Is \(\frac{70}{7^n}\) an integer, if n is an integer?
(1) n is a positive integer.
(2) n<2

Self Made
[Reveal] Spoiler: OA

_________________

Absolute modulus :http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

Kudos [?]: 5496 [2], given: 112

1 KUDOS received
Math Forum Moderator
User avatar
P
Joined: 13 Apr 2015
Posts: 1504

Kudos [?]: 1113 [1], given: 884

Location: India
Concentration: Strategy, General Management
WE: Information Technology (Consulting)
GMAT ToolKit User Premium Member CAT Tests
Re: Is 70/7^n an integer? [#permalink]

Show Tags

New post 03 May 2016, 06:24
1
This post received
KUDOS
St1: n = 1, 2,....
70/7 --> integer
70/7^2 --> not an integer
Not Sufficient

St2: n = 1, 0, -1, -2, ....
When n is 0 or 1, 70/7^n is an integer
When n is negative, 70/7^-n = 70*7^n is an integer
Sufficient

Answer: B

Kudos [?]: 1113 [1], given: 884

GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 16609

Kudos [?]: 273 [0], given: 0

Premium Member
Re: Is 70/7^n an integer? [#permalink]

Show Tags

New post 24 Aug 2017, 07:22
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.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Kudos [?]: 273 [0], given: 0

Re: Is 70/7^n an integer?   [#permalink] 24 Aug 2017, 07:22
Display posts from previous: Sort by

Is 70/7^n an integer?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| 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®.