It's a quiet (Sun)day, after a busy and anxious week for everyone. The weather is easing. It will take a few days to collect data on what really happened this week.
Let us take a break and think about some neutral and perhaps useless puzzle. Nevertheless, conecting more neurons in our brain is said to be good ;-)
Have a go!
3 irregular shaped (19L, 13L and 7L) water jugs with no markings , The 19L jug is empty, other jugs are full; we want 2 jugs of water 10L each. How can we do it by pouring water from one jug to another (a few times) only? -- no other tools (except our head) are allowed.
I know for fact that this puzzle can be solved. (There many more similar puzzles too.)
But getting a solution by ourselves is much more fun and sometimes transcendental.
no other tools ==> except our head .... ขอบคุณค่ะ
good jun thinking...tick tok tick tok...
Dear Dr. Ple
: I should confess, I did use paper and pencil in the beginning to get the essence of the problem. Once I had symbolism for the objects and 'moves' (or methods) clear, paper and pencil was used to track progress.
Thanks โอ๋-อโณ
: for giving me a (grand father) clock (by the sound of it ;-) For the time being there is no time limit for solving this puzzle. So, we can use as much time as we like ;-) but I am sure we have a lot of things to do ;-)
It was a response for an old blog on มวล that reminded of this puzzle I had left waiting for solutions for a good while. Well I have a solution (to prove that this puzzle can be solved).
Here is my solution:
One solution to
3 water jugs (19L, 13L and 7L), 19L is empty, others are full;
Target: wanted 2 jugs of water 10L each.
19L 13L 7L
=== === ===
0 13 7 initial ???
13 0 7 pour water in 13L jug into 19L jug empty jug to get
19 0 1 pour water in 7L jug into 19L jug until the 10L jug is full
19 1 0 pour rest of water in 7L jug into 13L jug
12 1 7 19L--> 7L
12 8 0 7L --> 13L
5 8 7 19L-->7L leaves 5 in 19L
5 13 2 7L-->13L leaves 2 in 7L
18 0 2
18 2 0
11 2 7 19L-->7L leaves 11 in 19L
11 9 0
4 9 7 19L-->7L leaves 4 in 19L
4 13 3 7L-->13L leaves 3 in 7L
17 0 3
17 3 0
10 3 7 19L-->7L leaves 10 in 19L
10 10 0 final and solved ;-)
There are more than 1 solution pathways. Please share yours.