4.
[tex]2kg - 1kg = [/tex]
[tex]1kg = 100dag[/tex]
[tex]100dag - 20dag = 80dag = ilosc \: tortu \: jaka \: zjadly \: dzieci[/tex]
[tex] \frac{80}{200} = \frac{40}{100} = \frac{4}{10} = 40\%[/tex]
odpowiedź C
5.
Pan Znakomity:
[tex] \frac{40}{100} \times 200 = \frac{4}{10} \times 200 = \frac{4}{1} \times 20 = 80[/tex]
Pani Doskonała:
[tex] \frac{60}{100} \times 200 = \frac{6}{10} \times 200 = \frac{6}{1} \times 20 = 120[/tex]
[tex]120 - 80 = 40[/tex]
odpowiedź B
