Question

A container contains a mixture of two liquids A and B in the ratio 7:5. when 9 litres of mixture drawn off and the remaining part of the container filled with B, the ratio becomes 7:9 .how many litres of liquid A did the can contain initially? ​

Answer 1

Explanation:

4 units=9 litres

1 unit =94 litres

12 units=94×12=27 litres

Initially solution was=27+9=36litres

Quantity of liquid 'A' initially=‘712×36=21 litres