Same topic3 marksDifficulty: Medium
The volume of a right circular cone is 1232 cm3 and its height is 24 cm. Find the radius of its base. (Take π = 22/7)
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4 marksDifficulty: Hard
A solid metallic sphere of radius 6 cm is melted and recast into small cones, each of radius 2 cm and height 3 cm. Find the number of cones formed.
Original Khojo Papers practice question — not from a past board paper.
Answer
72 cones
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Volume of the sphere = 4/3 π(6)3 = 288π cm3. Volume of one cone = 1/3 π(2)2(3) = 4π cm3. Number of cones = 288π ÷ 4π = 72.
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