[tex]a,b,c-nr.[/tex]
[tex]a + b + c = 52.52[/tex]
[tex]a = 0.2 \times b = \frac{2}{10} \times b = \frac{b}{5} [/tex]
[tex]b = \frac{1}{4} \times c[/tex]
[tex]b = \frac{c}{4} \: = > c = 4b[/tex]
[tex] \frac{b}{5} + b + 4b = 52.52[/tex]
[tex] \frac{b}{5} + b + 4b = \frac{5252}{100} \: | \times 100[/tex]
[tex]20b + 100b + 400b = 5252[/tex]
[tex]520b = 5252[/tex]
[tex]b = \frac{5252}{520} [/tex]
[tex]b = 10.1[/tex]
[tex]a = \frac{b}{5} = \frac{10.1}{5} = \frac{101}{10} \times \frac{1}{5} = \frac{101}{50} = 2.02[/tex]
[tex]c = 4b = 4 \times 10.1 = 40.4[/tex]
