There are 81 liters pure milk in a container. One-third of milk is replaced by water in the container. Again one-third of mixture is extracted and equal amount of water is added. What is the ratio of milk to water in the new mixture?
1 : 2
1 : 1
2 : 1
4 : 5
None of these
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IBPS PO Prelims 2016Attempt
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