# A solid box is 25 cm by 20 cm by 8 cm. A new solid is formed by removing a cube 5 cm on a side from each corner of this box. What percent of the original volume is removed?

##### 1 Answer

Jun 18, 2018

#### Explanation:

The original volume is

a 5 cm cube has a volume of

On a cuboid there are 8 vertices so that you would have a cube removed at each one

But I have just realized if you remove a cube from the top and the bottom you are removing 10 cm in height but the box is only 8 cm high!

So just remove 4 of the cubes