Jump to content


Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

If you like our site, you may support us by simply clicking Google "+1" or Facebook "Like" buttons at the top.
If you have a website, we would appreciate a little link to BrainDen.

Thanks and enjoy the Den :-)
Guest Message by DevFuse
 

Photo
- - - - -

How Far


  • Please log in to reply
6 replies to this topic

#1 John Wilson

John Wilson

    Newbie

  • Members
  • Pip
  • 1 posts

Posted 25 April 2013 - 06:23 PM

A Car passes as many  Lamptposts  in 2 minutes as its speed is in miles per hour. What is the distance between the Lamposts  in feet?          

 

 


  • 0

#2 jordge

jordge

    Newbie

  • Members
  • Pip
  • 19 posts
  • Gender:Male

Posted 25 April 2013 - 06:38 PM

Spoiler for Looks like


  • 0

#3 MathewStephenKtm

MathewStephenKtm

    Newbie

  • Members
  • Pip
  • 10 posts

Posted 26 April 2013 - 04:04 AM

Spoiler for Looks like

Can you please say, how you calculated this?


  • 0

#4 bonanova

bonanova

    bonanova

  • Moderator
  • PipPipPipPip
  • 5885 posts
  • Gender:Male
  • Location:New York

Posted 26 April 2013 - 08:43 AM

Spoiler for cute problem


  • 0
The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#5 bhramarraj

bhramarraj

    Advanced Member

  • Members
  • PipPipPip
  • 254 posts

Posted 04 May 2013 - 05:22 PM

Spoiler for


  • 0

#6 bonanova

bonanova

    bonanova

  • Moderator
  • PipPipPipPip
  • 5885 posts
  • Gender:Male
  • Location:New York

Posted 06 May 2013 - 07:33 AM

bhramarraj, we differ by an interpretation of OP, which is ambiguous.

If "2 minutes" means "every 2 minutes" or "a particular 2-minute interval" the answer could be what jordge and I posted or your answer or anything in between. That is, in the second case the first pole is passed (sometime) in the first minute and the second pole is passed (sometime) during the second minute. That would permit your answer if pole 1 happened at the beginning of minute 1, and the second pole happened at the end of minute 2.

Or am I missing something?

So, is John Wilson still around to clarify?
  • 0
The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#7 bhramarraj

bhramarraj

    Advanced Member

  • Members
  • PipPipPip
  • 254 posts

Posted 06 May 2013 - 11:37 AM

bhramarraj, we differ by an interpretation of OP, which is ambiguous.

If "2 minutes" means "every 2 minutes" or "a particular 2-minute interval" the answer could be what jordge and I posted or your answer or anything in between. That is, in the second case the first pole is passed (sometime) in the first minute and the second pole is passed (sometime) during the second minute. That would permit your answer if pole 1 happened at the beginning of minute 1, and the second pole happened at the end of minute 2.

Or am I missing something?

So, is John Wilson still around to clarify?

Spoiler for


  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users