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A Solid Cone of Height 8 Cm and Base Radius 6 Cm is Melted and Recast into Identical Cones Each Of Height 2 Cm and Diameter 1 Cm. Find the Number of Cones Formed. - ICSE Class 10 - Mathematics

ConceptArea and Volume of Solids - Cone

Question

A solid cone of height 8 cm and base radius 6 cm is melted and recast into identical cones each of height 2 cm and diameter 1 cm. Find the number of cones formed.

Solution

Height of solid cone (h) = 8 cm
Volume of solid cone =1/3pir^2h

=1/3xxpixx6xx6xx8

=96picm^3

Height of smaller cone = 2 cm

Volume of smaller cone =1/3xxpixx1/2xx1/2xx2

= 1/6pi cm^3

Number of cones so formed

(96pi)/(1/6)pi

=96pixx6/pi

=576

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Selina Solution for Selina ICSE Concise Mathematics for Class 10 (2020 to Current)
Chapter 20: Cylinder, Cone and Sphere
Exercise 20(B) | Q: 10 | Page no. 303
Solution A Solid Cone of Height 8 Cm and Base Radius 6 Cm is Melted and Recast into Identical Cones Each Of Height 2 Cm and Diameter 1 Cm. Find the Number of Cones Formed. Concept: Area and Volume of Solids - Cone.
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