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
3 replies to this topic

#1 quake

quake

    Newbie

  • Members
  • Pip
  • 4 posts

Posted 08 March 2008 - 08:24 PM

Water lilies growing on a pond double their surface area coverage each day. It took 40 days for the water lilies to cover half of the pond. How long will it take for the lilies to cover the entire pond?
  • 0

#2 brhan

brhan

    Advanced Member

  • Members
  • PipPipPip
  • 466 posts

Posted 08 March 2008 - 08:58 PM

Water lilies growing on a pond double their surface area coverage each day. It took 40 days for the water lilies to cover half of the pond. How long will it take for the lilies to cover the entire pond?

Spoiler for my solution

  • 0

#3 new guest

new guest

    Junior Member

  • Members
  • PipPip
  • 51 posts

Posted 09 March 2008 - 12:12 AM

um...duh? 40 days, half, and one day to double. 41 days. (so close to 42!)
  • 0

#4 rookie1ja

rookie1ja

    Senior Member

  • Site Admin
  • PipPipPipPip
  • 1338 posts
  • Gender:Male
  • Location:Slovakia

Posted 09 March 2008 - 12:36 AM

another variation on an already posted puzzle ... check the one entitled biology

thread locked
  • 0

rookie1ja (site admin)
Optical Illusions
Support BrainDen

"To start: Press any key... Where's the 'any' key?" - Homer Simpson





0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users