A block of wood is floating in water. The weight of the part of the block above water is one third of the total weight of the block. What is the the part the water by the block of weight of wood, using Archimedes' principle?
The wood is
The question is not clear but I think this is likely what you are looking for.
Another way to say this is:
each unit volume of wood can be supported by
#2/3#of a unit volume of water.