A worm can gnaw through 1 mm of paper for a single day. On a bookshelf there are two volumes, each 4 cm thick. Each of the covers is 2 mm thick. How long will it take the warm to gnaw from the first page of the first volume to the last page of the second volume?
- 60 days
- 80 days
- 14 days
- 4 days
Answer
The correct answer is D) 4 days.
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