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Can Conundrum is a puzzle in Professor Layton and the Diabolical Box.

Puzzle

A number of identical cans are hanging from a tree. While all the cans here may look empty, one is actually filled with water. See if you can find it.

When deducing your answer, ignore the weight of each string and stick.

Hints




Click a Tab to reveal the Hint.

US Version

Study each can, one at a time, and observe how they're balanced relative to each other.

UK Version

Study each can one at a time and observe how they're balanced, relative to each other.

US Version

Notice how the biggest stick is level even though it's connected to the tree at a point left of the stick's center.

This shows that the water must be in one of the four cans hanging from the left side of the big stick.

UK Version

Notice how the biggest stick is level even though it's connected to the tree at a point left of the stick's centre.

This shows that the water must be in one of the four cans hanging from the left side of the big stick.

We know that the water is in one of the four cans on the left, so finding the can in question should be a breeze.

Just look at the position of the four cans on the left relative to the string attacking all four cans to the big stick above. Which can looks heavier than the others?


Solution

Incorrect

Too bad!

US Version

Think hard about the clues you've been given and try again.

UK Version

Think hard about this puzzle and try again.

Correct

Nicely done!

US Version

The answer is A. The biggest stick connects to the branch at a point left of the center on the stick. Four cans hand from each side of the big stick. However, because the string connecting the stick to the tree is left of the center, the set of four cans on the left must be heavier than the four cans on the right. A, B, C, and D all hang from the left side of the big stick. However, judging by their distance from the string attaching them to the large stick, A must be the heaviest.

UK Version

The answer is A. The biggest stick connects to the branch at a point left of the centre of the stick. Four cans hang from each side of this big stick, but because the string holding it to the tree is left of centre, the set of four cans on the left must be heavier than the ones on the right. A, B, C and D all hang from the left side of the big stick. However, judging by the number of cans and the position of the strings, it's easy to see that A is the heaviest.

DB073S

A big thanks to http://professorlayton2walkthrough.blogspot.com

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