Xavier Aptitude Test 2018 Paper

A: B = 5:3 (Water →

1

3

, a & B →

2

3

)
A : B → W : A : B

5

3

×

2

3

3

8

×

2

3

→ 4 : 5 : 3
... (i)
The porous medium absorbs all the water and a part of A. There is no change in B. The ration : B is now 7 : 9.....(ii)
As B remain unchanged we represent ratio = 12:15:9.
= (4: 5 : 3) x 3 = 12:15 :9
(12 + 8) = 20 units is 200 ml, 12 unit water =120 ml.