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

It is currently 01 Aug 2015, 02:05
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

Three bells chime at intervals of 18 min., 24 min. and 32 mi

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 08 Oct 2010
Posts: 213
Location: Uzbekistan
Schools: Johnson, Fuqua, Simon, Mendoza
WE 3: 10
Followers: 9

Kudos [?]: 357 [0], given: 974

Three bells chime at intervals of 18 min., 24 min. and 32 mi [#permalink] New post 25 Oct 2010, 01:17
4
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

69% (02:45) correct 31% (01:35) wrong based on 149 sessions
Three bells chime at intervals of 18 min., 24 min. and 32 min. respectively. At a certain time they begin together. What length of time will elapse before they chime together again?

A. 2 hr. and 24 min.
B. 4 hr. and 48 min.
C. 1 hr. and 36 min.
D. 5 hr.
E. 2 hr.
[Reveal] Spoiler: OA
1 KUDOS received
Manager
Manager
avatar
Joined: 16 Oct 2010
Posts: 89
Location: United States
Concentration: Finance, Entrepreneurship
GMAT 1: 700 Q49 V35
WE: Information Technology (Investment Banking)
Followers: 0

Kudos [?]: 29 [1] , given: 3

Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi [#permalink] New post 25 Oct 2010, 02:06
1
This post received
KUDOS
1
This post was
BOOKMARKED
feruz77 wrote:
Three bells chime at intervals of 18 min., 24 min. and 32 min. respectively. At a certain time they begin together. What length of time will elapse before they chime together again?
a) 2 hr. and 24 min.
b) 4 hr. and 48 min.
c) 1 hr. and 36 min.
d) 5 hr.
e) 2 hr.



It should be simple. All the three bells will chime again together whenver their time intervals intersect eachother.
So the LCM of the three time intervals (18, 24,32) would be the answer.
LCM (18, 24, 32) = 288 => 4 hours 48 mins.
1 KUDOS received
Intern
Intern
avatar
Joined: 10 Oct 2010
Posts: 36
Followers: 0

Kudos [?]: 1 [1] , given: 3

Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi [#permalink] New post 25 Oct 2010, 08:55
1
This post received
KUDOS
Agree 4 hours 48 mins solved it the same exact way
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 5703
Followers: 322

Kudos [?]: 62 [0], given: 0

Premium Member
Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi [#permalink] New post 12 Aug 2014, 05:45
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

SVP
SVP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1859
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Followers: 23

Kudos [?]: 1012 [0], given: 193

Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi [#permalink] New post 12 Aug 2014, 23:02
LCM of 18, 24, 32

\(= 2^6 * 3^2 = 288\)

\(\frac{288}{60} = 4\) Hrs something

Answer = B
_________________

Kindly press "+1 Kudos" to appreciate :)

Intern
Intern
avatar
Joined: 24 Sep 2014
Posts: 4
Followers: 0

Kudos [?]: 0 [0], given: 3

Three bells chime at intervals of 18 min., 24 min. and 32 mi [#permalink] New post 08 Nov 2014, 01:01
PareshGmat wrote:
LCM of 18, 24, 32

\(= 2^6 * 3^2 = 288\)

\(\frac{288}{60} = 4\) Hrs something

Answer = B


This is wrong! It should be 2to the power of 5 and not 6
Three bells chime at intervals of 18 min., 24 min. and 32 mi   [#permalink] 08 Nov 2014, 01:01
    Similar topics Author Replies Last post
Similar
Topics:
1 Six bells commence tolling together and toll at intervals of 2, 4, 6, aimtoteach 1 27 Apr 2015, 07:52
a bus every 4 and 12 mins MBAhereIcome 1 26 Aug 2011, 12:32
Ratio, Min/max problem HelloKitty 4 17 Mar 2011, 18:38
21 Experts publish their posts in the topic Two pipes can fill a tank in 24 min and 32 min respectively. jimmy86 12 18 Oct 2010, 19:34
17 Experts publish their posts in the topic In how many ways can a teacher write an answer key for a min mww7786 14 28 Oct 2007, 16:32
Display posts from previous: Sort by

Three bells chime at intervals of 18 min., 24 min. and 32 mi

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| 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®.