The ratio of the present ages of Swati and Trupti is $4:5.$ $6 \text{ years}$ hence the ratio of their ages will be $6:7.$ What is the difference between their ages? (in $\text{years}$)

Radha's present age is $3 \text{ years}$ less than twice her age $12 \text{ years}$ ago. Also,the ratio of Raj's present age to Radha's present age is $4:9$. What will be Raj's age after $5 \text{ years}$? (in $\text{years}$)

The ratio of the present ages of $A$ and $B$ is $7:9$. $6$ years ago,the ratio of $\frac{1}{3}$ of $A$'s age at that time and $\frac{1}{3}$ of $B$'s age at that time was $1:2$. What will be the ratio of $A$'s to $B$'s age $6$ years from now?

$A$ man's age is $125 \%$ of what it was $10 \, \text{years}$ ago, but $83 \frac{1}{3} \%$ of what it will be after $10 \, \text{years}$. What is his present age? (in $\text{years}$)

Ratio of Ashok's age to Pradeep's age is $4:3$. Ashok will be $26$ years old after $6$ years. How old is Pradeep now? (in years)

$A$ father is aged three times more than his son Ronit. After $8 \, \text{years}$,he would be two and a half times of Ronit's age. After further $8 \, \text{years}$,how many times would he be of Ronit's age?