← | 035 - Candy Counter | 036 - How Many Ones? | 037 - Seven Coins | → |
How Many Ones? is a puzzle in Professor Layton and the Last Specter. The puzzle must be solved in order to progress the story.
Puzzle
- US Version
One day, a little boy who was very curious about numbers thought to himself: "If I were to write out all the numbers from 1 to 120, how many times would I write the numeral 1?"
Can you work out the answer?
- UK Version
One day, a little boy who was very curious about numbers thought to himself: "If I were to write out all the numbers from 1 to 120, how many times would the number 1 appear?"
Can you work out the answer?
Hints
Solution
Incorrect
- US Version
Too bad!
Are there any 1s that you missed?
- UK Version
Too bad.
Did you maybe forget to count some 1s?
Correct
- US Version
Precisely!
The numeral 1 comes up 53 times.
You have to remember to count it twice in 11 and three times in 111. If you keep this in mind, the problem is simple.
- UK Version
One-derful!
The number 1 comes up 53 times.
You have to remember to count it twice in 11 and three times in 111. Keep this in mind and the problem is simple.
Professor Layton and the Last Specter | Puzzles in||
---|---|---|
Normal |
| |
Weekly | See here for weekly puzzles. | |
Puzzle Index: CV · DB · UF · LS · MM · AL · VS |