Jakim procentem liczby 215 jest:

$\text{a)}86$

$\frac{86}{{\sout{215}}^{43}}\cdot {\sout{100}}^{20}\%=\frac{86\cdot 20}{43}\%=\frac{{\sout{1720}}^{40}}{{\sout{43}}^1}\%=40\%$

$\text{b)}129$

$\frac{129}{{\sout{215}}^{43}}\cdot {\sout{100}}^{20}\%=\frac{129\cdot 20}{43}\%=\frac{{\sout{2580}}^{60}}{{\sout{43}}^1}\%=60\%$

$\text{c)}270,9$

$\frac{270,9}{{\sout{215}}^{43}}\cdot {\sout{100}}^{20}\%=\frac{270,9\cdot 20}{43}\%=\frac{{\sout{5418}}^{126}}{{\sout{43}}^1}\%=126\%$