Răspuns :
[------] [------]------]-----] [------]------]------]--27--] 1000-27=973 973:7=139 litri in primul butoi 139x3=417 litri in al doilea butoi 417+27=444 litri in al treilea butoi
a+b+c=1000l
al-------l
bl-------l-------l--------l....-27}1000l
cl-------l....+27
1000:5=200 l motorina
a=200 l motorina
b= 3a-27=3*200-27=600-27=573 l motorina
c=200 +27= 227 l motorina proba
200 l+573 l+227 l=1000 l motorina
al-------l
bl-------l-------l--------l....-27}1000l
cl-------l....+27
1000:5=200 l motorina
a=200 l motorina
b= 3a-27=3*200-27=600-27=573 l motorina
c=200 +27= 227 l motorina proba
200 l+573 l+227 l=1000 l motorina