Josephine filled a total of 2 x 3 = <<2*3=6>>6 liters from the three containers with two liters each.
She filled a total of 0.75 x 2 = <<0.75*2=1.5>>1.5 liters from the two containers with 0.75 liters each.
She filled a total of 0.5 x 5 = <<0.5*5=2.5>>2.5 liters from the five containers with 0.5 liters each.
Therefore, she sold a total of 6 + 1.5 + 2.5 = <<6+1.5+2.5=10>>10 liters of milk.
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