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Old 03-17-2010, 08:42 PM   #3
yekim54
What the Dog Saw
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Join Date: Jul 2008
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Quote:
Originally Posted by Kris777 View Post
How many trees were killed to print 250 million books?
Assuming each tree yields 2 tons of wood that can be used for producing paper for books, and assuming each book contains 200 pages, it will require about 531,000 trees to print 250 million books.
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