Please help with physics problem!!!?

Question

A solid cylinder (radius = 0.150 m, height = 0.120 m) has a mass of 6.50 kg. This cylinder is floating in water. Then oil ( = 725 kg/m3) is poured on top of the water until the situation shown in the drawing results. How much of the height of the cylinder is in the oil?

Answer 1

What drawing?

In general Fb=g p V
Fb- buoyant force
g- acceleration due to gravity
p - density of liquid
V - volume of the liquid displaced by the object.

We have
Fb= Fb(oil) + Fb(water)
Fb(oil) = g p(oil) V(oil displaced)
Fb(water) = g p(water) V(water displaced)

Let me know when additional information comes to light.

Have fun