Odpowiedź :
[tex]1120 - 70\% \\ x - 100\% \\ \\ x = \frac{1120 \times 100}{70} = \frac{112000}{70} = 1600[/tex]
[tex]1600 - 80\% \\ x - 100\% \\ \\ x = \frac{1600 \times 100 }{80} = \frac{160000}{80} = \boxed{2000zl}[/tex]
[tex]1120 - 70\% \\ x - 100\% \\ \\ x = \frac{1120 \times 100}{70} = \frac{112000}{70} = 1600[/tex]
[tex]1600 - 80\% \\ x - 100\% \\ \\ x = \frac{1600 \times 100 }{80} = \frac{160000}{80} = \boxed{2000zl}[/tex]