Răspuns :
cisterna 1 =2020 litri
cisterna 2= cisterna 1+205 litri⇒
cisterna 2=2020+205=2225 litri
2020+2225=4245 litri in total
cisterna 2= cisterna 1+205 litri⇒
cisterna 2=2020+205=2225 litri
2020+2225=4245 litri in total