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
- - - - -


  • Please log in to reply
5 replies to this topic

#1 Yves

Yves

    Newbie

  • Members
  • Pip
  • 11 posts

Posted 23 January 2008 - 05:14 AM

Let’s say you have a broomstick, 5 ft. long. You cut the stick randomly, anywhere, one time, into two pieces. The question is, what is the probability that you will get 1 piece which is at least 3 feet long?
  • 0

#2 Jkyle1980

Jkyle1980

    Advanced Member

  • Members
  • PipPipPip
  • 157 posts

Posted 23 January 2008 - 05:37 AM

Spoiler for Divided by infinity? Nope.

  • 0

#3 roolstar

roolstar

    Advanced Member

  • Members
  • PipPipPip
  • 250 posts
  • Gender:Male

Posted 23 January 2008 - 03:39 PM

I'm sure if you do this in reality with real people the probabily becomes a lot less than that!

We have a tendency to cut close to the middle.... And thus increase the chances of less than 3 feet.....
  • 0

#4 vegasphotog

vegasphotog

    Newbie

  • Members
  • Pip
  • 1 posts

Posted 23 January 2008 - 05:30 PM

Let’s say you have a broomstick, 5 ft. long. You cut the stick randomly, anywhere, one time, into two pieces. The question is, what is the probability that you will get 1 piece which is at least 3 feet long?


only a cut between the 2nd and 3rd foot would result in two pieces, both of which are not 3 ft in length. So I would say a 4/5 chance or 80% that one of the pieces will be at least 3 ft long
  • 0

#5 b-rat

b-rat

    Newbie

  • Members
  • Pip
  • 2 posts

Posted 23 January 2008 - 05:55 PM

What if you cut the stick from the top and split the stick in half long ways?
I am no math genius I'm just looking at some details.
  • 0

#6 bonanova

bonanova

    bonanova

  • Moderator
  • PipPipPipPip
  • 5810 posts
  • Gender:Male
  • Location:New York

Posted 23 January 2008 - 09:18 PM

Spoiler for It's

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




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users