Odpowiedź :
2 L --- 2,8 dag
5 L --- x
-----------------------
x = (5 * 2,8) : 2 = 7 dag
6 --- 4,8 m
4 --- x
----------------------
x = (4 * 4,8) : 6 = 3,2 m
2 L --- 2,8 dag
5 L --- x
-----------------------
x = (5 * 2,8) : 2 = 7 dag
6 --- 4,8 m
4 --- x
----------------------
x = (4 * 4,8) : 6 = 3,2 m