1.

A tin contains a mixture of two liquids A and B in the ratio 7:5. When 9 litres of mixture are drawn off and the tin is filled with B, the ratio of A and B becomes 7:9. How many litres of liquid A was contained by the tin initially?

Answer»

A tin contains a mixture of two liquids A and B in the ratio 7:5. When 9 litres of mixture are drawn off and the tin is filled with B, the ratio of A and B becomes 7:9. How many litres of liquid A was contained by the tin initially?



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