Question

6 robinete deschise simultan pot umple un bazin in 45 de minute.In cate minute pot umple un bazin doar 5 robinete deschise simultan​

Answer 1

6 r .......... 45 min

5 r ......... x min

_______________

x = 45 × 6 : 5 = 270 : 5 = 54 minute ( 5 robinete )

Answer 2

Explicație pas cu pas:

6 robinete.......45 min

5 robinete.......x min