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Numeric Graffiti is a weekly puzzle in Professor Layton and the Last Specter.

PuzzleEdit

A wall is covered in graffiti numbers. The numbers 0 to 9 all look like numbers when rotated 180 degrees except for 3, 4, and 7. Between 00 and 99, numbers may be grouped into those that are still readable as numbers when rotated and those that are not. What is the difference between the sizes of these two groups?

HintsEdit




Click a Tab to reveal the Hint.

Three, 4, and 7 become unreadable when rotated, so the 30 numbers 30-39, 40-49, and 70-79 are all unreadable. Add up any remaining numbers that have 3,4,or 7 for the second digit. Then it's just simple subtraction to get the answer.


SolutionEdit

IncorrectEdit

Too bad!

Try looking at the numbers again.

CorrectEdit

Unbelievab-wall!

There are 49 numbers that are still readable when rotated 180 degrees. The remaining 51 numbers are unreadable. Therefore the difference between the two groups is 2.

LSW15S

A big thanks to http://professorlayton4walkthrough.blogspot.com

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