7. The volumes of three vessels are in the ratio 1:2:4. The volume of the second vessel is 40 L. The first vessel is empty, the second is filled with milk and the third is filled with water. 50% of the volume from the second vessel is transferred to the first and that is replaced with the liquid from the third vessel. The contents of the first vessel is now emptied into the third vessel. This operation is done once more. What fraction of the third container comprises milk finally?
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. The volumes of three vessels are in the ratio 1:2:4. The volume of the second vessel is 40 L. The first vessel is empty, the second is filled with milk and the third is filled with water. 50% of the volume from the second vessel is transferred to the first and that is replaced with the liquid from the third vessel. The contents of the first vessel is now emptied into the third vessel. This operation is done once more. What fraction of the third container comprises milk finally?
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