Wazon 1:
[tex]16 + 20 = 36[/tex]
[tex]36 - 100\% \\ 20 - x \\ \\ x = \frac{20 \times 100}{36} = \frac{5 \times 100}{9} = \frac{500}{9} = 55 \frac{5}{9} \%[/tex]
Około 56%
Wazon 2:
[tex]12 + 12 = 24[/tex]
[tex]24 - 100\% \\ 12 - x \\ \\ x = \frac{12 \times 100}{24} = \frac{1 \times 100}{2} = 50\%[/tex]
Wyniesie 50%
Wazon 3:
[tex]16 + 4 = 20[/tex]
[tex]20 - 100\% \\ 4 - x \\ \\x = \frac{4 \times 100}{20} = \frac{1 \times 100}{5} = \frac{100}{5} = 20[/tex]
Wyniesie 20%