Question 1176646
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Since   44   liters comprise   4/5    of the volume,    1/5  of the volume is   {{{44/4}}} = 11  liters.


Hence,  the full bucket is   11*5 = 55  liters.


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This problem can be solved by many ways:  for example,  using proportions.


I showed you how to solve it  MENTALLY.