A box with lid is made of 2 cm thick wood. Its external length, breadth and height are 25 cm, 18 cm and 15 cm respectively. How much cubic cm of a liquid can be placed in it? Also, find the volume of the wood used in it.
Given external dimensions of cuboid are
∴External volume =`lxxbxxh`
Internal dimension of cuboid.
internal volume = l x b x h
∴Volume of liquid that can be placed =`3234cm^3`
Now, volume of wood = external volume – Internal volume