state gov Odisha Police SI Mock Test 2025 Quantitative Aptitude Mixture Problems To Make a Mixture from Two Mixtures
A can contains a mixture of two liquids A and B in 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?
1
10
2
20
3
21
4
25