GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 15 Nov 2018, 02:33

ISB R1 results on Nov 15:

Join Chat Room for Live Updates


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 in November
PrevNext
SuMoTuWeThFrSa
28293031123
45678910
11121314151617
18192021222324
2526272829301
Open Detailed Calendar
  • Free GMAT Strategy Webinar

     November 17, 2018

     November 17, 2018

     07:00 AM PST

     09:00 AM PST

    Nov. 17, 7 AM PST. Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.
  • GMATbuster's Weekly GMAT Quant Quiz # 9

     November 17, 2018

     November 17, 2018

     09:00 AM PST

     11:00 AM PST

    Join the Quiz Saturday November 17th, 9 AM PST. The Quiz will last approximately 2 hours. Make sure you are on time or you will be at a disadvantage.

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

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

Hide Tags

Manager
Manager
avatar
Joined: 08 Oct 2010
Posts: 201
Location: Uzbekistan
Schools: Johnson, Fuqua, Simon, Mendoza
WE 3: 10
Three bells chime at intervals of 18 min., 24 min. and 32 mi  [#permalink]

Show Tags

New post 25 Oct 2010, 01:17
7
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

75% (02:16) correct 25% (02:08) wrong based on 244 sessions

HideShow timer Statistics

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.
Manager
Manager
avatar
Joined: 16 Oct 2010
Posts: 81
Location: United States
Concentration: Finance, Entrepreneurship
GMAT 1: 700 Q49 V35
WE: Information Technology (Investment Banking)
Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi  [#permalink]

Show Tags

New post 25 Oct 2010, 02:06
1
1
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.
Intern
Intern
avatar
Joined: 10 Oct 2010
Posts: 22
Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi  [#permalink]

Show Tags

New post 25 Oct 2010, 08:55
1
Agree 4 hours 48 mins solved it the same exact way
SVP
SVP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1827
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi  [#permalink]

Show Tags

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
Three bells chime at intervals of 18 min., 24 min. and 32 mi  [#permalink]

Show Tags

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
Board of Directors
User avatar
P
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4209
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
GMAT ToolKit User Premium Member
Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi  [#permalink]

Show Tags

New post 16 Jul 2018, 07:47
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.

LCM of 32, 24 & 18 = 288

Now, 288 = 60*4 + 48

Thus, The bells will chime together again after 4 Hours 48 Minutes, Answer must be (B)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

GMAT Club Bot
Re: Three bells chime at intervals of 18 min., 24 min. and 32 mi &nbs [#permalink] 16 Jul 2018, 07:47
Display posts from previous: Sort by

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

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


Copyright

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