Problem: a larger cube has 8 cubic inch as a volume and in the cube there are 8 smaller cubes such that their volume is 1 cubic inch . what is the difference between the surface areas ’ sum of the 8 smaller cubes and the surface area of the larger cube , in square inch ? 
Options: ['a ) 24', 'b ) 64', 'c ) 81', 'd ) 108', 'e ) 120']
a