A square shaped hole of side   l =   a 2 is carved out at a distance d = a 2 from the centre '…

A square shaped hole of side$l= \frac{\mathrm{a}}{2}$ is carved out at a distance  $\mathrm{d}=\frac{\mathrm{a}}{2}$ from the centre '$\mathrm{O}$' of a uniform circular disk of radius a. If the distance of the centre of mass of the remaining portion from $\mathrm{O}$ is $-\frac{\mathrm{a}}{\mathrm{x}}$, value of $\mathrm{X}$ (to the nearest integer) is :