Question

Daca 6 robinete pot umple un bazin in 24 de ore, in cat timp va fi umplut bazinul de catre 8 robinete de acelasi fel

Answer 1

6 robinete umplu un bazin in 24h
8 robinete umplu un bazin in x h
(invers proportionalitate) ⇒ $6*24=8x$ ⇒ $x= \frac{6*24}{8}$ ⇒ $x=18 h$