1. The problem statement, all variables and given/known data A piece of wood floats in water with 65% of its volume under water.Find the relative density of the wood. 2. Relevant equations Buoyancy = (Weight of object) / (Relative density of object) 3. The attempt at a solution B = W/s 1= .65/s s = .65/1 s= .65 My book says this is the right answer but I can't understand how? I guess .65 and 1 are ratios. But how did they get the one?