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A lead pencil consists of a cylinder of ...

A lead pencil consists of a cylinder of wood with a solid cylinder of graphite filled in the interior. The diameter of the pencil is 7 mm and diameter of graphite is 1 mm. If the length of the pencil is 14 cm, find the volumes of the wood and that of the graphite.

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The correct Answer is:
`5 . 28 cm^(3)`
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