The ages of Tanvy and Divya are in the ratio 5 : 7. Five years hence, their ages will be in the ratio 3 : 4. Find their present ages.

One year ago, the ratio of Amit’s and Arun’s ages was 6 : 7 respectively. Four years hence, their ages will be in the ratio 7 : 8. How old is Amit?

68 kg of a mixture contains milk and water in the ratio 27 : 7. How much more water is to be added to this mixture to get a new mixture containing milk and water in the ratio 3 : 1?

A mixture contains milk and water in the ratio 5 : 1. On adding 5 litres of water, the ratio of milk to water becomes 5 : 2. Find the quantity of milk in the original mixture.