The Bookworm's Move
There are three books on a shelf standing side by side as they are normally placed on bookshelf. Each book is
10ml thick. The bookworm eats its way through the first page of the
first book to the last page of the last book.
How far did the bookworm move if it can only move in a straight horizontal line?
30 mm? It must have moved only 10mm!
How far did the bookworm move if it can only move in a straight horizontal line?
30 mm? It must have moved only 10mm!
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