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Time Cards is a puzzle in Professor Layton and the Unwound Future.
Puzzle
- US Version
The four cards below, zero, one, two, and six, can be used to display different times of the day, as seen in the example 02:16.
If using 24-hour clock, how many different actual times can be created by rearranging the four cards?
You must use all four cards to display each time. The cards can't be overlapped.
- UK Version
These four cards, 0, 1, 2 and 6, can be used to display different times of the day, as seen in the example 02:16.
Using the 24-hour clock, how many different times can be displayed by rearranging the four cards?
You must use all four cards to display each time. The cards can't be overlapped.
Hints
Solution
Incorrect
Too bad!
- US Version
Consider all of your options carefully.
- UK Version
First look at all the conditions, then start eliminating any answers that are impossible.
Correct
That's it!
- US Version
Twenty different times of the day can be displayed using the four cards.
Did it take you long to figure out that the six can also be used as a nine?
And, of course, times like 26 o'clock and 60 minutes past the hour don't exist.
- UK Version
20 different times can be displayed using the four cards.
Did it take you a while to work out that the 6 can also be used as a 9?
And, of course, times like 26 o'clock and 60 minutes past the hour don't exist.
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