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mihai rezolva in 5 zile 45 de probleme.cate probleme va rezolva mihai in 8 zile? dar in 10 zile?

Răspuns :

Z=45:5 z=9 probleme pe zi 8*9=72 probleme in 8 zile. 9*10=90 probleme in 10 zile coroana?
5 zile..........45 probleme
8 zile...........xprobleme
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x=8x45pe 5=72 probleme

5 zile...............45 probleme
10 zile .............xprobleme
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x=10 x 45 pe 5=90