A Board That Is 20

A board that is 20.0 cm wide,5.00 cm thick,and 3.00 m long has a density .The board is floating partially submerged in water of density 1000 kg/m³.What fraction of the volume of the board is above the surface of the water?

A) 0.350
B) 0.650
C) zero
D) 0.200
E) The answer depends on which edge of the board is vertical.