Question

Now Susan wants to make a block that looks like a solid block that is 6 small cubes
long, 5 small cubes wide and 4 small cubes high. She wants to use the smallest
number of cubes possible, by leaving the largest possible hollow space inside the
block.
What is the minimum number of cubes Susan will need to make this block?

Answer 1

Susan will require 15 blocks to build the block