Odpowiedź:
razem
[tex]6 \frac{5}{8} kg[/tex]
pierwszy
[tex]6 \frac{5}{8} - 1.75 = \frac{53}{8} - \frac{175}{100} = \frac{6625}{1000} - \frac{1750}{1000} = \frac{4875}{1000} = 4.875 \: kg[/tex]
drugi
[tex]4.875 - 2 \frac{3}{20} = \frac{4875}{1000} - \frac{43}{20} = \frac{4875}{1000} - \frac{2150}{1000} = \frac{2725}{1000} = 2.725 \: kg[/tex]
czyli ostatni wziął 2,725 kg
