August 2018 1 13 Report
1.rafal wykonuje pewna prace w ciagu 14 dni,a wspolnie z kasia w ciagu 10 dni. w ciagu ilu dni wykona te prace sama kasia ?

2.jaka jest cyfra jednosci liczby a , jesli
a= 2(do potegi 122) : 5(do potegi 15) : 9(do potegi 11)

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