Same chapter4 marksDifficulty: Hard
A toy is in the shape of a cone of radius 3.5 cm and height 12 cm mounted on a hemisphere of the same radius. Find the total volume of the toy. Take π = 22/7.
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4 marksDifficulty: Hard
A metallic sphere of radius 3 cm is melted and recast into a cone of base radius 6 cm. Find the height of the cone.
Original Khojo Papers practice question — not from a past board paper.
Answer
3 cm
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The volume is unchanged, so (4/3)π(27) = (1/3)π(36)h, that is 36π = 12πh and h = 3 cm.
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