Teaching NVS Junior Secretariat Assistant (JSA) Mock Test 2024 Quantitative Aptitude Mixture Problems To Make a Mixture from Two or More Things
A vessel contains a mixture of two liquids A and B in the ratio 7 ∶ 5. When 9 liters of mixture are drawn off and the vessel is filled with B, the ratio of A and B become 7 ∶ 9. How many liters of liquid A was there in the vessel initially?
1
10 liters
2
20 liters
3
21 liters
4
25 liters