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A bucket contains a mixture of two liquids Aand B in the proportion 7: 5. If 9 litres of themixture is replaced by 9 litres of liquid B, thenthe ratio of the two liquid becomes 7: 9. How much of the liquid A was there in the bucket ?

A bucket contains a mixture of two liquids Aand B in the proportion 7: 5. If 9 litres of themixture is replaced by 9 litres of liquid B, thenthe ratio of the two liquid becomes 7: 9. How much of the liquid A was there in the bucket ? Correct Answer 21 litres

Suppose the two liquids A and B are 7x litres and 5x litres respectivel Now, when 9 litres of mixture are taken out,

Now, when 9 liters of liquid B are added

 

 

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