Question

12 robinete pot umple un bazin in 4 ore. In cate ore pot umple bazinul 3 robinete cu acelasi debit. Am nevoie urgent de raspuns !

Answer 1

12robinete⇒4h;
3robinete⇒y[h]
⇒y=12·4h/3
⇒y=4·4h
⇒y=16h[pot umple bazinul];