
In steady state, both the capacitors are at the same potential, i.e., $\frac{ Q _1}{ C _1}=\frac{ Q _2}{ C _2}$ or $\frac{ Q _1}{ C }=\frac{ Q _2}{2 C }$ or $Q _2=2 Q _1$
Also $Q _1+ Q _2= Q$
$\therefore Q _1=\frac{ Q }{3}, Q _2=\frac{2 Q }{3}$


(Dielectric constant of the material $=3.2$ ) and (Round off to the Nearest Integer)
Reason : In a hollow spherical shield, the electric field inside it is zero at every point.