Daca 6 robinete umplu un bazin in 2 ore aflati in cate ore vor umple acelasi bazin 4 robinete

Răspuns :

Salut !

[tex]6 \: robinete........ \: 2 \: ore[/tex]

[tex]4 \: robinete........ \: x \: ore[/tex]

[tex]6:4 = 2:x [/tex]

[tex] = > x = \frac{6}{4} \times \frac{2}{1} = \frac{6}{2} = 3[/tex]

[tex]............[/tex]