Two identical thin rods of mass M kg and length L m are connected as shown in figure. Moment of inertia of the combined rod system about an axis…

Two identical thin rods of mass $\displaystyle M \mathrm{~kg}$ and length $\displaystyle L \mathrm{~m}$ are connected as shown in figure. Moment of inertia of the combined rod system about an axis passing through point $\displaystyle P$ and perpendicular to the plane of the rods is $\displaystyle \frac{x}{12} \mathrm{ML}^2 \mathrm{~kg} \mathrm{~m}^2$. The value of $\displaystyle x$ is $\displaystyle \_\_\_\_$.