1. | A can contains a mixture of two liquids A and B is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially? |
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Answer: Option C Explanation: Suppose the can initially contains 7
252 112 So, the can contained 21 litres of A. |

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