6 litres of milk and water mixture has 75% milk in it. How much milk should be added to the mixture to make it 90% pure ?

6 litres of milk and water mixture has 75% milk in it. How much milk s

1.	6 litres of milk and water mixture has 75% milk in it. How much milk should be added to the mixture to make it 90% pure ?
A.	10 litres
B.	8 litres
C.	9 litres
D.	12 litres
Answer» D. 12 litres

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6 litres of milk and water mixture has 75% milk in it. How much milk should be added to the mixture to make it 90% pure ?

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6 litres of milk and water mixture has 75% milk in it. How much milk should be added to the mixture to
make it 90% pure ?