[CV066] Birthday Girl

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065 - What's E?

066 - Birthday Girl

067 - The Chocolate Code

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Birthday Girl
Game	Professor Layton and the Curious Village
Number	066
Type	Write Answer
Location	Clock Tower
Given by	Lucy
Solved by	Professor Layton
Picarats	60
Mandatory	No
Reward	None
In other languages
日本語	誕生日 tanjō bi

Birthday Girl is a puzzle in the American version of Professor Layton and the Curious Village. For the puzzle in the European version of the game, go here.

Puzzle

When asked about her birthday, a young woman gives the following information:

"The day after tomorrow, I turn 22, but I was still 19 on New Year's Day last year."

When is her birthday?

Hints

• →
• Hint 1
• Hint 2
• Hint 3

Click a Tab to reveal the Hint.

The first thing you should do is determine what day this exchange is taking place.

The woman says she's turning 22 in two days, so right now she must be 21.

Hopefully these two points will give you something to go on.

The woman will turn 22 in two days, and her birthday, like all birthdays, lasts but one day.

She also mentions her age last year. A year, on the other hand, is a much larger period of time to deal with.

In order for her statement to be true, her birthday needs to fall on a particular day. Think about how the above two facts help to narrow the possibilities.

This conversation took place at the very end of the year.

If her birthday is in two days, it will have to be after New Year's Eve.

That's right, it will be a new year by the day after tomorrow.

Solution

Incorrect

Too bad.

Her explanation might seem convoluted, but it's absolutely possible.

Correct

That's right!

Her birthday is January 2nd, and your conversation with her must have taken place on December 31st.

As you can see on the chart above, the woman was 19 on New Year's Day last year, and she turned 20 the next day. This year, she turned 21, and in two days, after the new year starts, she'll turn 22.