2. Zadatak

Cijena 1. stana je $\frac{3}{20}\cdot2\,800\,000=420\,000$ kn,

2. stana je $\frac{1}{10}\cdot2\,800\,000=280\,000$ kn,

3. stana je $\frac{3}{7}\cdot2\,800\,000=1\,200\,000$ kn i

4. stana je $2\,800\,000-(420\,000+280\,000+1\,200\,000)$

odnosno

$$=2\,800\,000-1\,900\,000=900\,000\ \mathrm{kn}.$$