Two wires as shown in the figure below, made of steel and have breaking stress of 12 × 10^8 N / m^2. Area of cross-section of upper wire is 0.008…

Two wires as shown in the figure below, made of steel and have breaking stress of $\displaystyle 12 \times 10^8 \mathrm{~N} / \mathrm{m}^2$. Area of cross-section of upper wire is $\displaystyle 0.008 \mathrm{~cm}^2$ and of lower wire is $\displaystyle 0.004 \mathrm{~cm}^2$. The maximum mass that can be added to pan without breaking any wire is $\displaystyle \_\_\_\_$ kg. (take $\displaystyle g=10 \mathrm{~m} / \mathrm{s}^2$ )