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
- - - - -

Pouring water I.


  • This topic is locked This topic is locked
48 replies to this topic

#21 Andy pyro

Andy pyro

    Newbie

  • Members
  • Pip
  • 2 posts

Posted 18 December 2007 - 04:19 PM

Well, I see a small thing with this puzzle... It isn't possible to have exactly 3/4/5 liters in a bowl, because sometime during the solution, you would spill some water. So, if you are extremely careful, or you've put a lid or something over the top of the bowl, the water should not spill out, but mostly, even one drop of water would spill out, making it almost 3/4/5 liters. Ok, I'm starting to confuse myself.
  • 0

#22 hawaiidave

hawaiidave

    Newbie

  • Members
  • Pip
  • 2 posts

Posted 23 December 2007 - 07:05 PM

Just curious. Why would you not just spill the 5 into the 3 catching the overspill both times? Seems the easiest to me.
  • 0

#23 mfhelen

mfhelen

    Newbie

  • Members
  • Pip
  • 2 posts

Posted 26 December 2007 - 07:44 PM

You fill the 3 liter ones
Then pour the water from the 3 liter in the 5 liter. you now have 2 liter of water space left in the 5 liter jar.
You fill the 3 liter with water again
Then you pour water from the 3 liter container into the 5 liter comtainer
when the 5 liter is full you know you have ONE liter left in the 3 liter container.

  • 0

#24 Martini

Martini

    Senior Member

  • Members
  • PipPipPipPip
  • 770 posts

Posted 26 December 2007 - 08:58 PM

Just curious. Why would you not just spill the 5 into the 3 catching the overspill both times? Seems the easiest to me.


Because what makes the riddle challenging is you don't have anything besides the 3 litre and 5 litre bowls to hold water in.
  • 0

#25 laks

laks

    Newbie

  • Members
  • Pip
  • 1 posts

Posted 02 January 2008 - 05:35 PM

First fill the water in 3litres bowl
Then pour the water in bowl to 5litres bowl
Then fill the 3ltrs bowl again and pour the water in 5ltr bowl
they left 1ltr of water in 3ltr bowl.
Empty the 5ltr bowl and then pour the 1ltr in that bowl.Again fill the 3ltr bowl full of water.
Then pour the entire water in the 5ltr bowl.it will contain exact 4ltrs of water.
  • 0

#26 grottylittlewanker

grottylittlewanker

    Junior Member

  • Members
  • PipPip
  • 21 posts

Posted 18 January 2008 - 04:18 AM

I like that with a 3 liter container and a 5 liter container you can effectively measure out any (non-fractional) number of liters... only up to 8 liters if you can only use the two containers
  • 0

#27 Evil.Mustard

Evil.Mustard

    Newbie

  • Members
  • Pip
  • 5 posts

Posted 18 January 2008 - 04:28 AM

If you had a way to measure how much you were filling and pouring out, why wouldn't you just go ahead and put four liters into the five liter bowl. Or just fill it up and pour out a liter. Why waste water? I see no point in the three liter bowl.
  • 0

#28 yarelm

yarelm

    Newbie

  • Members
  • Pip
  • 8 posts

Posted 21 January 2008 - 10:19 PM

It's more difficult to read the responses than come up with a solution yourself. That's because it is difficult to write an answer that is easy to read. I don't think I've made it any easier but I've given it a shot.

Fill the 5L bowl, then fill the 3L bowl with water out of the 5L bowl to leave 2L in the 5L bowl.
Dump the 3L bowl and pour the 2L of water from the 5L bowl into the 3L bowl. You now have 2L of water in the 3L bowl (room for 1 more)
Fill the 5L bowl again and then fill the 3L bowl with water out of the 5L bowl. Tadah!!! 5 - 1 = 4.
  • 0

#29 eric11

eric11

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 05 February 2008 - 08:07 PM

Pouring water I. - Back to the Water and Weighing Puzzles
If you had a 5-litre and a 3-litre bowl and access to water. How would you measure exactly 4 litres?


Spoiler for Solution


That's a good answer but try measuring four liters without wasting any water. Assume there is a drought. The solution is possible.
  • 0

#30 eric11

eric11

    Newbie

  • Members
  • Pip
  • 3 posts

Posted 05 February 2008 - 11:07 PM

That's a good answer but try measuring four liters without wasting any water. Assume there is a drought. The solution is possible.

I forgot to mention that you must assume that the bowls are the same sizea although not same in volume.
  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users