\textbf{169-} We want to make a sphere from a metal with density $\dfrac{g}{\text{cm}^3} \times 6$, with a radius of $5\,\text{cm}$. How many kilograms will this sphere be?
\hfill $1.57$ (1) \hfill $2.36$ (2) \hfill $3.14$ (3) \hfill $4.71$ (4) \hfill