A spherical shell of lead, whose external diameter is 18 cm, is melted and recast into a right circular cylinder, whose height is 8 cm and diameter 12 cm. The internal diameter of the shell is:

619 cm

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6(19)^1/4 cm

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6(19)^1/2 cm

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6(19)^1/3 cm

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Solution

The correct option is D
6(19)^1/3 cm

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Q. A metallic spherical shell, of internal and external diameters 4 cm and 8 cm, is melted and recast as a cone of base diameter 8 cm. The height of the cone is
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Question 9
A metallic spherical shell of internal and external diameters 4 cm and 8 cm, respectively is melted and recast into the form of a cone of base diameter 8cm. Find the height of the cone.
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(B) 14 cm
(C) 15 cm
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A spherical shell of lead, whose external diameter is 18 cm, is melted and recast into a right circular cylinder, whose height is 8 cm and diameter 12 cm. The internal diameter of the shell is:

The correct option is D 6(19)1/3 cm

The correct option is D
6(19)^1/3 cm