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Hole in the Sphere
by Samuel I. Jones*

A cylindrical hole six inches long has been drilled straight through the center of a solid sphere - just as shown in the illustration.

The question is what is the volume remaining in the sphere?

 

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*Martin Gardner has found the earliest reference for this problem in Samuel I. Jones's Mathematical Nuts, self-published, Nashville, 1932.
 

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Last Update
December 7, 2003

 
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