Question

A cube block of edge 22 cm is melted into small spherical balls of radius 1 cm. Calculate the number of balls that can br made grom it. (Ans.2541)

Answer 1

yes it's correct answer

Answer 2

Edge of the cube= 22 cm
So, volume of the cubical block=(22 cm)³= 10648 cm³
Now, radius of each spherical ball= 1cm
So, volume of each spherical ball= 4/3πr³
                                                     = 4/3×22/7×1³= 4.19 cm³

So, number of balls that can be made= Volume of cubical block/ Volume of each spherical ball
                                                            = 10648/4.19 
                                                            = 2541.28≈2541
Therefore, their area 2541 small spherical balls that can be made after melting the cubical block.

Hope this helps you!! :)