Professor Layton and the Diabolical Box
Puzzle 024: A Strip of Paper
Two clumsy attempts to fold a strip in half leave two creases, so how far apart are they in tenths of an inch?
- Chapter
- Chapter 1
- Location
- Car 3 · Lili
- Picarats
- 10 picarats
- Type
- Write Answer
- Region
- Same in all versions
Hint 1: A gentle nudge. Tap to flip.
You don't need to know how long the strip is.
Tap to flip backHint 2: The key idea. Unlocks after the previous card is flipped.
Compare each crease with the true middle of the strip.
Tap to flip backHint 3: Almost there. Unlocks after the previous card is flipped.
Each crease is the same distance from the middle, one on either side.
Tap to flip backAnswer: See the answer. Unlocks after the previous card is flipped.
The answer is 10 (one inch).
Tap to flip backSolution, FAQ and sources
Solution
Call the strip's length *L*. The true halfway point is at *L*/2.
1. If one side is an inch longer after folding, the crease is half an inch away from the middle: at *L*/2 − 0.5. 2. The second time, the *other* side is an inch longer, so that crease is half an inch on the other side: at *L*/2 + 0.5. 3. The creases are (*L*/2 + 0.5) − (*L*/2 − 0.5) = 1 inch apart, whatever the length.
In tenths of an inch: **10**.
About this puzzle
You try to fold a strip of paper in half, but one end ends up an inch longer than the other. You try again, and this time the other end is an inch longer. How far apart are the two creases, in tenths of an inch?
Unofficial fan guide, not affiliated with LEVEL-5 or Nintendo. Puzzle description, hints and solution written by Hint by Hint.
Similar puzzles: Puzzle 020: The Shoe Store Thief, Puzzle 014: Red Caps, Puzzle 013: On Your Plate, Puzzle 027: A Dramatic Farewell
All Professor Layton and the Diabolical Box puzzles
FAQ
What is the answer to Puzzle 024, A Strip of Paper, in Professor Layton and the Diabolical Box?
The answer is 10 (one inch).
Where do you find Puzzle 024 in Diabolical Box?
Puzzle 024 appears in Chapter 1, in the Car 3 area, when you talk to Lili.
How many picarats is Diabolical Box Puzzle 024 worth?
10 picarats.
Sources
- Professor Layton Wiki (Fandom): Puzzle:A Strip of Paper
- StrategyWiki: Professor Layton and the Diabolical Box/Puzzles 1-25
- Professor Layton Wiki (Fandom): Module:PuzzleData/DB
Facts checked on November 14, 2026
Unofficial fan guide. Not affiliated with, endorsed by, or sponsored by LEVEL-5 Inc. Professor Layton, The New World of Steam, and all related names, characters, and trademarks are the property of their respective owners.