Mathematics · Mensuration
The radii of the external and internal surfaces of a hollow spherical shell are 6 cm and 3 cm respectively. If it is melted and recast into a solid cylinder of height 7 cm, then the diameter of the cylinder is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 114 cm
- 29 cm
- 312 cm✓
- 48 cm
Correct answer
12 cm
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