What is the conductivity of a semiconductor sample having electron concentration of 5 × 10^18 m^-3, hole concentration of 5 × 10^19 m^-3, electron…

What is the conductivity of a semiconductor sample having electron concentration of $\displaystyle 5 \times 10^{18} \mathrm{~m}^{-3}$, hole concentration of $\displaystyle 5 \times 10^{19} \mathrm{~m}^{-3}$, electron mobility of $\displaystyle 2.0 \mathrm{~m}^2 \mathrm{~V}^{-1} \mathrm{~s}^{-1}$ and hole mobility of $\displaystyle 0.01 \mathrm{~m}^2 \mathrm{~V}^{-1} \mathrm{~s}^{-1}$ ? (Take charge of electron as $\displaystyle 1.6 \times 10^{-19} \mathrm{C}$ )