Q:

A rectangular prism measures 2 2/5 inches by 3 1/5 inches by 2 inch. Priya said, it takes more cubes with edge length 2/5 inch cubes than cubes with edge length 1/5 to pack the prism. Do you agree?

Accepted Solution

A:
I don't agree.
Cubes with the edge length of 2/5 have a volume of 0.064 while 1/5 edge length had a volume of 0.008 it will take 8 times more cubes to fill it with the 1/5 edge length squares than the 2/5 edge length squares.