Brain Teasers
Brain Teasers Trivia Mentalrobics Games Community
Personal Links
Submit a Teaser
Your Favorites
Your Watchlist
Browse Teasers


Daily Teasers
Search Teasers

Advanced Search
More ways to get Braingle...

Water Juggling

Logic puzzles require you to think. You will have to be logical in your reasoning.


Puzzle ID:#8500
Fun:*** (2.64)
Difficulty:*** (2.95)
Submitted By:sakirski***
Corrected By:firefox99




Here's what you have:

-Two 8-liter jugs, filled with water
-One 3-liter jug, empty
-Four infinite size, empty pools

Here's what your objective is:
Fill each of the four pools with exactly 4 liters of water.

Here are your constraints:

-You have nothing else at your disposal.
-There is no other water aside from the two 8-liter water filled jugs.
-Once water is poured into any of the 4 pools it cannot be removed from there.
-The jugs are not symmetric so you cannot measure amount by eye or judge based on shape.


It's not short but it's right - use a piece of paper and follow the steps using A, B, C and pools. Change the quantities in each as you complete each step - it is worth it to see it come out right.

Lets label the jugs.

Jug A - first 8-liter
Jug B - second 8-liter
Jug C - 3-liter.

The four infinites are pool 1, pool 2, pool 3, and pool 4.

1. Jug A to Jug C
2. Jug C to pool 1
3. Jug A to Jug C
4. Jug A to pool 2
5. Jug C to Jug A
6. Jug B to Jug C
7. Jug C to Jug A
8. Jug B to Jug C
9. Jug C to Jug A

At this point, we have:

Jug A - 8
Jug B - 2
Jug C - 1
Pool 1 - 3
Pool 2 - 2
Pools 3&4 - empty

10. Jug C to pool 3
11. Jug B to Jug C
12. Jug A to Jug C
13. Jug C to Jug B
14. Jug A to Jug C
15. Jug C to Jug B
16. Jug A to Jug C
17. Jug A to pool 4

At this point, we have:

Jug A - 0
Jug B - 6
Jug C - 3
Pool 1 - 3
Pool 2 - 2
Pool 3 - 1
Pool 4 - 1.

18. Jug C to Jug B
19. Jug C to pool 1
20. Jug B to Jug C
21. Jug C to pool 3
22. Jug B to Jug C
23. Jug C to pool 4
24. Jug B to pool 2

... And we end up with the desired result:

Jug A - 0
Jug B - 0
Jug C - 0
Pool 1 - 4
Pool 2 - 4
Pool 3 - 4
Pool 4 - 4

Tough, but workable.


What Next?


See another brain teaser just like this one...

Or, just get a random brain teaser

If you become a registered user you can vote on this brain teaser, keep track of
which ones you have seen, and even make your own.


Back to Top

Users in Chat : None 

Online Now: 12 users and 834 guests

Copyright © 1999-2016 | Updates | FAQ | RSS | Widgets | Links | Green | Subscribe | Contact | Privacy | Conditions | Advertise

Custom Search

Sign In A Create a free account