Answer: 
 
Explanation:
The volume of box with dimensions l by w by h is given by :-
, where l is length , w is width and h is height of the box.
 Given: The volume of Box A is 48 cubic meters.
 i.e.
 , where l is length , w is width and h is height of the box.
If the to create Box B, Box A's dimensions were doubled, then the dimensions of Box A will be 2l by 2w by 2h.
Bow, the volume of Box B will be:-
 
Hence, the volume of Box B =