Question

the metallic sphere of radii 6cm,8cm and 10cm respectively are melted to form a single soild sphere find the radius of the resulting sphere​

Answer 1

Let the radius of the resulting sphere be r cm. 

Then, the volume of the resulting sphere = Sum of the volumes of three sphere of radii 6cm,8cm and 10cm

⇒34πr3=34π×63+34π×83+34π×103

⇒r3=216+512+1000

⇒r3=1728

⇒r3=123

⇒r=12cm

Answer 2

Answer:

the metallic sphere of radii 6cm,8cm and 10cm respectively are melted to form a single soild sphere find the radius of the resulting sphere