Water puzzle

Denis

Senior Member
Joined
Feb 17, 2004
Messages
1,688
You have 3 empty containers: 15, 10 and 6 ounces.
You need to end up with 1 ounce of water in 2 of the containers.
Containers can be filled from your kitchen water tap!
How you do that?

If not familiar with water pouring puzzles, havva looksee:
https://www.scientificpsychic.com/mind/aqua1.html
 

Harry_the_cat

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Mar 16, 2016
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1,250
  1. Fill up the 6oz container from the tap.
  2. Pour it into the 10oz container.
  3. Fill up the 15oz container from the tap.
  4. Pour from the 15oz container into the 10oz container until it is full. (That will leave 11oz in the 15oz container.)
  5. Empty the full 10oz container down the sink. (I'm assuming there is a plughole near the kitchen water tap.)
  6. Fill up the 10oz container from the 11oz left in the 15oz container.
  7. There will be 1oz left in the 15oz container!! Da Dah!
EDIT: Oh no, that's not right. Just reread the question - you need 2 lots of 1oz. Woopsie!
 

Jomo

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Dec 30, 2014
Messages
3,526
Fill up both the 6oz and 10oz container.
Pour the water from the 10oz in to 15oz container.
Then pour 5oz from the 6oz container into the 15oz container filling it up.
This leaves 1oz in the 6oz container.
Good luck getting the 2nd 1oz container.
 

Denis

Senior Member
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Feb 17, 2004
Messages
1,688
Good try Harry!

Try again!!
 

Denis

Senior Member
Joined
Feb 17, 2004
Messages
1,688
Fill up both the 6oz and 10oz container.
Pour the water from the 10oz in to 15oz container.
Then pour 5oz from the 6oz container into the 15oz container filling it up.
This leaves 1oz in the 6oz container.
Good luck getting the 2nd 1oz container.
Good start....5 more moves and you got it!!
 

Jomo

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Dec 30, 2014
Messages
3,526
Fill up both the 6oz and 10oz container.
Pour the water from the 10oz container into 15oz container.
Then pour 5oz from the 6oz container into the 15oz container filling it up.
This leaves 1oz in the 6oz container.

Fill up the 10oz container.
Pour the water from the 10oz container into 15oz container.
Now pour the 1oz into the 10oz container
Fill up the 6oz container.
Then pour 5oz from the 6oz container (thus leaving 1 oz) into the 15oz container filling it up.
There you go!
 

Denis

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Feb 17, 2004
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Ya get a 15oz container of Canadian Club Whiskey !!
 

Jomo

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Dec 30, 2014
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topsquark

Full Member
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Aug 27, 2012
Messages
340
With my kitchen water? Fill up one of the containers and wait for the water to eat the bottom of the container. When the water gets down to the right level plug the hole.

-Dan
 

Denis

Senior Member
Joined
Feb 17, 2004
Messages
1,688
Can be done in 9 moves:
(1) (0, 0, 6)
(2) (0, 10, 6)
(3) (10, 0, 6)
(4) (10, 6, 0)
(5) (10, 6, 6)
(6) (15, 6, 1)
(7) (11, 10, 1)
(8) (11, 0, 1)
(9) (1, 10, 1)
 

Jomo

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Dec 30, 2014
Messages
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Can be done in 9 moves:
(1) (0, 0, 6)
(2) (0, 10, 6)
(3) (10, 0, 6)
(4) (10, 6, 0)
(5) (10, 6, 6)
(6) (15, 6, 1)
(7) (11, 10, 1)
(8) (11, 0, 1)
(9) (1, 10, 1)
What is wrong with my 9 moves??
 

Denis

Senior Member
Joined
Feb 17, 2004
Messages
1,688
Fill up both the 6oz and 10oz container.
Pour the water from the 10oz container into 15oz container.
Then pour 5oz from the 6oz container into the 15oz container filling it up.
This leaves 1oz in the 6oz container.

Fill up the 10oz container.
Pour the water from the 10oz container into 15oz container.
Now pour the 1oz into the 10oz container
Fill up the 6oz container.
Then pour 5oz from the 6oz container (thus leaving 1 oz) into the 15oz container filling it up.
There you go!
What is wrong with my 9 moves??
That's 10 moves, not 9.
Here's what you did:
Code:
STEP   [15]  [10]   [6]
  1     0      0     6 : fill [6]
  2     0     10     6 : fill [10] 
  3    10      0     6 : dump [10] in [15]
  4    15      0     1 : fill [15] from [6]
  5    15     10     1 : fill [10] 
  6     0     10     1 : empty [15] : you don't show this step
  7    10      0     1 : dump [10] in [15]
  8    10      1     0 : dump [6] in [10]
  9    10      1     6 : fill [6]
 10    15      1     1 : fill [15] from [6]
You don't get the job of CEO, Pouring Dept, !!
 

Jomo

Elite Member
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Dec 30, 2014
Messages
3,526
Darn it. I really need a job. Anyone looking for a dedicated math instructor?
 
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