Răspuns:
Explicație pas cu pas:
2 butoaie.................4 damigene.....................300 litri ( : 2)
3 butoaie..................2 damigene.....................350 litri
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1 butoi......................2 damigene........................150 litri
3 butoaie.................2 damigene........................350 litri
3 - 1 = 2 butoaie...........................................350 - 150 = 200 litri
1 butoi.............................................................200 : 2 = 100 litri
2 damigene...............150 - 100 = 50 litri
1 damigeana................50 : 2 = 25 litri