Question

daca patru robinete umplu un bazin in 24 ore aflati cate robinete au acelasi debit trebuie deschise pentru a umple acelasi bazin in 8 ore

Answer 1

$~~~~~~~~~~~~~~~~\boxed{Tema} ~ ~~~\alpha.\underline{Rezolvare} ~ ~~~~~4~robinete~...........~24~h ~~~~~x~robinete~............~8~h ~~~~~------------------- ~~~~~Sunt~marimi~invers~proportionale~(~i.p~) \dfrac{4}{x} = \dfrac{8}{24} = \ \textgreater \ x = \dfrac{4 * 24}{8} = \ \textgreater \ x = \dfrac{96}{8} = \ \textgreater \ ~ \boxed{ x = 12~robinete}$