Alligation or Mixture - General Questions

A mixture of 24 litres contains milk and water in the ratio 2 : 6. If 18 litres of water is added, what is the new ratio of milk to water?

A mixture of 64 litres contains milk and water in the ratio 5 : 3. If 19 litres of water is added, what is the new ratio of milk to water?

A mixture of 121 litres contains milk and water in the ratio 6 : 5. If 3 litres of water is added, what is the new ratio of milk to water?

A mixture of 40 litres contains milk and water in the ratio 6 : 4. If 3 litres of water is added, what is the new ratio of milk to water?

A mixture of 48 litres contains milk and water in the ratio 5 : 3. If 12 litres of water is added, what is the new ratio of milk to water?