Mensuration · Question 13 · Hard
A solid metal sphere of radius 6 cm is melted and recast into a cylinder of radius 4 cm. What is the height of the cylinder?
- 24 cm
- 13.5 cm
- 12 cm
- 18 cm
Answer and explanation
Answer: D. 18 cm
Explanation: Volumes are equal: (4/3)π × 6³ = π × 4² × h. So 288 = 16h and h = 18 cm.
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