A metallic sphere of radius 105cm is melted and then recast into smaller cones each of radius 35cm a...

Question

A metallic sphere of radius 105cm is melted and then recast into smaller cones each of radius 35cm and height 3cm How many cones are obtained

Accepted Answer

ANSWER It is given that Radius of the sphere 105cm Radius of smaller cone 35cm Height 3cm We know that Number of cones Volume of the sphere Volume of one small cone So we get Number of cones 43 227 1053 13 227 352 3 On further calculation Number of cones 4851 385 126 Therefore 126 cones are obtained from the metallic sphere

RS Aggarwal Solutions Class 9 Mathematics Solutions for Volume And Surface Area Of Solids Exercise 15D in Chapter 15 - Volume And Surface Area Of Solids