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

It is currently 29 Jun 2015, 15:16

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

A watch which gians uniformly is 5 minutes slow at 8:00 am

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Manager
Manager
avatar
Joined: 28 Jun 2004
Posts: 90
Followers: 1

Kudos [?]: 10 [0], given: 0

A watch which gians uniformly is 5 minutes slow at 8:00 am [#permalink] New post 18 Aug 2004, 15:26
A watch which gians uniformly is 5 minutes slow at 8:00 am on Sunday and is 5 min 48 seconds fast at 8:00 pm on the following Sunday. When did it show the correct time?
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jul 2004
Posts: 5068
Location: Singapore
Followers: 23

Kudos [?]: 192 [0], given: 0

 [#permalink] New post 18 Aug 2004, 18:20
in 12 hours, it gained 10mins48seconds = 648 seconds
so each hour, it gains 54 seconds = 9/10 of a minute

So at 8am it is 300 seconds slower
9am, it will be 246seconds slower
10am, 192 seconds slower... etc. It will show the correct time when this difference reduces to 0.
For that to happens, it need to be 300/54 = 5 5/9 hours later. Which is about 1:30pm
CIO
CIO
User avatar
Joined: 09 Mar 2003
Posts: 463
Followers: 2

Kudos [?]: 35 [0], given: 0

 [#permalink] New post 19 Aug 2004, 09:04
The clock gains 10 min 48 sec by 8 pm the FOLLOWING Sunday. That's 180 hours, or 10,800 minutes. That works out perfectly, since 10 min 48 sec is really 10.8 min, so when we divide, we see that the clock gets faster by 1 minute every 1000 minutes. Since it starts out 5 minutes slow, it'll be right on when it's gained 5 minutes, which is 1000x5=5000 minutes later.

5000 minutes is 3 days, 11 hours, and 20 minutes, which is Wed at 7:20PM.
  [#permalink] 19 Aug 2004, 09:04
    Similar topics Author Replies Last post
Similar
Topics:
3 Between 3:00 am. and 3:00 p.m. of the same day, the minute sportypk 2 30 May 2008, 09:28
Peter leaves Riverdale at 10:00 a.m. and starts pedaling his Hermione 4 07 Dec 2006, 08:07
Ana traveled at a constant rate r and at 12.00 am she passed getzgetzu 3 21 Apr 2006, 02:35
A person who runs at 80 mph starts at 8.00, after half an getzgetzu 2 21 Apr 2006, 02:28
A boat with a speed of 80mph started racing at 8:00. After joemama142000 7 20 Feb 2006, 17:13
Display posts from previous: Sort by

A watch which gians uniformly is 5 minutes slow at 8:00 am

  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®.