Two point charges 8 μ C and -2 μ C are located at x=2 cm and x=4 cm, respectively on the x -axis. The ratio of electric flux due to these charges…

Two point charges $\displaystyle 8 \mu \mathrm{C}$ and $\displaystyle -2 \mu \mathrm{C}$ are located at $\displaystyle x=2 \mathrm{~cm}$ and $\displaystyle x=4 \mathrm{~cm}$, respectively on the $\displaystyle x$-axis. The ratio of electric flux due to these charges through two spheres of radii $\displaystyle 3$ cm and $\displaystyle 5$ cm with their centers at the origin is $\displaystyle \_\_\_\_$.