The third proportional to $0.8$ and $0.2$ is

The salaries of $A, B$ and $C$ are in the ratio $2: 3: 5$. If increments of $15\%, 10\%$ and $20\%$ are allowed respectively in their salaries,then what will be the new ratio of their salaries?

The incomes of $A$ and $B$ are in the ratio $3:2$ and their expenditures are in the ratio $5:3$. If each saves ₹ $1000$,then $A$'s income is (in ₹):

The ratio of two numbers is $3:5$. If both numbers are increased by $8$,the ratio becomes $13:18$. What is the sum of the two numbers?

The sum of two numbers is three times their difference. What is the ratio of the two numbers?

The ratio of the present ages of $R$ and $S$ is $11:17$. $11$ years ago,the ratio of their ages was $11:20$. What is $R$'s present age (in years)?