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A Bookworm’s meal (Posted on 2002-04-19) Difficulty: 3 of 5
A bookworm can chew through a millimiter (mm) of paper or cardboard in half an hour. One day it encounters a particularly tasty treat: a two-volume edition of a large book standing on a shelf as shown.

The volumes are identical in size, each has a front and a back cover that is a millimeter thick on each side, and the pages of each are a 10mm thick stack of paper from the first page to the last.

If a bookworm starts its meal on the first page of the first volume (already inside the front cover), how long will it take to eat his way through to the last page of the second volume (inside the second volume’s back cover)?

See The Solution Submitted by levik    
Rating: 3.2857 (7 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Answer | Comment 11 of 12 |

It take the worm precisely 1 hour to eat his way through to the last page of the second volume.

Edited on July 2, 2008, 12:46 pm
  Posted by K Sengupta on 2008-07-01 06:24:48

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