Mathematics · Mensuration
Nine solid metallic spheres of radius 2.5 cm each are melted and recast into a solid cylinder of height 7.5 cm. The curved surface area (in cm2) of the cylinder is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1125 π
- 2150 π✓
- 3120 π
- 475 π
Correct answer
150 π
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