A mixture of 30 litres contains milk and water in the ratio of 7 ∶ 3. How much water should be added to it so that the ratio of milk and water becomes 3 ∶ 7?

A mixture of 30 litres contains milk and water in the ratio of 7 ∶

1.	A mixture of 30 litres contains milk and water in the ratio of 7 ∶ 3. How much water should be added to it so that the ratio of milk and water becomes 3 ∶ 7?
A.	49 litres
B.	40 litres
C.	63 litres
D.	56 litres
Answer» C. 63 litres

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A mixture of 30 litres contains milk and water in the ratio of 7 ∶ 3. How much water should be added to it so that the ratio of milk and water becomes 3 ∶ 7?

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