The ratio of water and milk in a 30 liter mixture is 7 : 3. Find the quantity of water to be added to the mixture in order to make this ratio 6 : 1.

The ratio of water and milk in a 30 liter mixture is 7 : 3. Find the q

1.	The ratio of water and milk in a 30 liter mixture is 7 : 3. Find the quantity of water to be added to the mixture in order to make this ratio 6 : 1.
A.	0
B.	2
C.	3
D.	5
Answer» D. 5