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The ratio of milk and water in the container is 3: 2 and when 10 litres of the mixture is taken out and is replaced by water the ratio becomes 2: 3. The total quantity of the mixture in the container is.


Options:
A .   15 ltr
B .   10 ltr
C .   12 ltr
D .   30 ltr
E .   18 ltr
Answer: Option D
:
D

Suppose the total quantity is x litres.


So, the required ratio 2: 3


3x62x+6=23x=103x=30


So, the quantity of the mixture was 30 ltr. 



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