A pot contains two liquid A and B in the ratio 4 1 10 litre mixture was drained and 10 litre of liqu...........

Quantitative Aptitude (CDS) Mixture and Alligation

A pot contains two liquid A and B in the ratio 4:1. 10-litre mixture was drained and 10 litre of liquid B is mixed, then the mixture's ratio become 2:3. Find the amount of liquid A in the new mixture?

8 litre

12 litre

11 litre

10 litre

Explanation:

The ratio of the mixture is 4: 1
=4x+x=5x
10-litre mixture is drained
=5x-10 is remaining
In 10-litre amount A and B is 8 and 2 litre
After mixing of 10 litre B amount ratio is 2: 3
4x-8 amount A and x-2+10 amount B
4x-8/x+8 =2/3
12x-24=2x+16
10x=40
X=4
4×4-8= 8 litre