Find all School-related info fast with the new School-Specific MBA Forum

It is currently 26 Aug 2016, 07:53
GMAT Club Tests

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If K is a positive integer, and 5^k is the factor of the

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
avatar
Joined: 22 Nov 2005
Posts: 476
Followers: 2

Kudos [?]: 13 [0], given: 0

If K is a positive integer, and 5^k is the factor of the [#permalink]

Show Tags

New post 28 May 2006, 23:38
00:00
A
B
C
D
E

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.

If K is a positive integer, and 5^k is the factor of the product of the numbers from 99 to 199, what is the value of k?

1). When divided by 2, the remainder is 1

2). When divided by 3, the remainder is 2
VP
VP
User avatar
Joined: 29 Dec 2005
Posts: 1348
Followers: 8

Kudos [?]: 55 [0], given: 0

Re: DS - Number Theory [#permalink]

Show Tags

New post 30 May 2006, 12:43
gmat_crack wrote:
If K is a positive integer, and 5^k is the factor of the product of the numbers from 99 to 199, what is the value of k?

1). When divided by 2, the remainder is 1
2). When divided by 3, the remainder is 2


k could be 5 or 11 or 17 or 23 [5+(6n) because there are 23 5's in the product of integers between 99 and 199.

E make sense..
SVP
SVP
avatar
Joined: 30 Mar 2006
Posts: 1737
Followers: 1

Kudos [?]: 68 [0], given: 0

 [#permalink]

Show Tags

New post 30 May 2006, 23:58
E for me too.

1) k = 2q +1 not suff
2) K = 3y + 2 not suff

Both togther

K can be 5, 11 etc ........
Manager
Manager
avatar
Joined: 10 May 2006
Posts: 186
Location: USA
Followers: 1

Kudos [?]: 4 [0], given: 0

Re: DS - Number Theory [#permalink]

Show Tags

New post 31 May 2006, 09:55
Professor wrote:
gmat_crack wrote:
If K is a positive integer, and 5^k is the factor of the product of the numbers from 99 to 199, what is the value of k?

1). When divided by 2, the remainder is 1
2). When divided by 3, the remainder is 2


k could be 5 or 11 or 17 or 23 [5+(6n) because there are 23 5's in the product of integers between 99 and 199.

E make sense..


Agree that answer is E.

Prof, how did you calculate 23 5's in the product of integers?
VP
VP
User avatar
Joined: 29 Dec 2005
Posts: 1348
Followers: 8

Kudos [?]: 55 [0], given: 0

Re: DS - Number Theory [#permalink]

Show Tags

New post 31 May 2006, 10:42
tl372 wrote:
Professor wrote:
gmat_crack wrote:
If K is a positive integer, and 5^k is the factor of the product of the numbers from 99 to 199, what is the value of k?
1). When divided by 2, the remainder is 1
2). When divided by 3, the remainder is 2

k could be 5 or 11 or 17 or 23 [5+(6n) because there are 23 5's in the product of integers between 99 and 199.
E make sense..

Agree that answer is E.
Prof, how did you calculate 23 5's in the product of integers?

1) 200/5 - 100/5 = 20
2) 200/25 - 100/25 = 4
3) 200/125 - 100/125 = 1

sorry about hasty generalization. actually there are 25 (not 23) 5's.
Re: DS - Number Theory   [#permalink] 31 May 2006, 10:42
Display posts from previous: Sort by

If K is a positive integer, and 5^k is the factor of the

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.