|←||130 - Too Many Queens 5||131 - Heavier or Lighter?||132 - Princess in a Box 2||→|
Below are 12 weights that are visually identical to one another. Among these is a single weight that has a different weight from the others. The problem is that you don't know whether this weight is heavier or lighter than the others.
Use the scales exactly three times to determine which weight is different from the others.
The irregular weight changes each time you try the problem. Think about what you need to do and try again.
This challenging problem is well known to many puzzle aficionados. If you're lucky, it's possible to find the answer without too much work.
Think of how you could do this if you could use the scale as many times as you wanted.
|Professor Layton and the Curious VillagePuzzles in|
See here for weekly puzzles
|Puzzle Index: CV · DB · UF · LS · MM · AL · VS|
A big thanks to http://professorlaytonwalkthrough.blogspot.com