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'There and Back Again' printed from http://nrich.maths.org/
Bilbo decides to leave his hobbit-hole and go on an adventure. He
walks 100 miles South, then 100 miles East, then finally 100 miles
North, at which point he is surprised to find that he has arrived
Many people would think that because of this Bilbo must live at the
However, Bilbo doesn't live at the North Pole!
Can you describe where you think his home might be?
Have you found all the possible locations?