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How Old Am I? is a puzzle in Professor Layton and the Diabolical Box.

Puzzle

US Version

"Hi there! Yeah, I know I'm all cute and stuff, but I'm ALSO really good at puzzles. What's that? You wanna know my age? Well...OK.

The difference between Mama's age and Papa's age is the same as my age. Oh, and my big sister is twice my age, which happens to be one-third my mom's age. And one more thing: in five years, I'll be my sister's age.

OK, enough hints! How old am I?"

UK Version

"The difference between Mum's age and Dad's age is the same as my age. Oh, and my big sister's twice my age, which happens to be one third my mum's age. And one more thing: In five years, I'll be my sister's age.

How old am I?"

Hints




Click a Tab to reveal the Hint.

US Version

"When you've got a puzzle like this one, what you wanna do is go over all the info you've got and find the stuff you can use. The difference between my parents' ages probably won't help you. But...my sister's age could be kinda useful."

UK Version

When you've got a puzzle like this one, what you should do is go over all the information you've got and find the stuff you can use. The difference between her parents' ages probably won't help you. But her sister's age might be more useful...

US Version

"Five years ago, my sis was the same age as I am now, and she's now twice my age."

UK Version

The girl's sister is twice her age, and in five years' time, the girl will be the age her sister is now.

US Version

"Read Hint Two REALLY CAREFULLY, OK?

"Five years ago, my sis was the same age as I am now, and she's now twice my age."

UK Version

Read Hint 2 really carefully...

Five years ago, her sister was the same age she is now, and her sister is now twice her age.


Solution

Incorrect

US Version

"Nope!"

"You know, I'd bet you're older than me. A grown-up like you should be able to figure this one out!"

UK Version

Nope!

A grown-up like you should be able to work this one out!

Correct

US Version

"Hey, not bad!

Papa's 35 and Mama's 30, meaning the difference in their ages is the same as my age, like I said.

As for my big sis, she's 10. That's twice my age and a third of Mama's. In five years, I'll be 10 and my sister will be 15. Can you believe it? I'll practically be a grown-up by then!"

UK Version

Hey, not bad!

The girl's father is 35 and her mother is 30, meaning the difference in their ages is the same as the girl's age, as she said.

As for her big sister, she's 10. That's twice the girl's age and a third of their mother's. In five years, the girl will be 10, which is her sister's age now.

Kids these days grow up so quickly!

DB093S

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

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