Q4 of 35 Page 205

a metal sphere of radius 12 centimetres is melted and recast into 27 small spheres. What is the radius of each sphere?

Total volume available for melting = Volume of the sphere

=


=


= 2304π cm3


Let 'r' be the radius of one small sphere.


Then volume of one small sphere = =





But number of spheres is given as 27.


So we can write:




R = 4cm


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