Radha got married six years ago. Her present age is $\frac{5}{4}$ times of her age at the time of marriage. Her daughter's age is $\frac{1}{10}$ of her age. What is the present age of her daughter?

3 years

Let's assume present age of Radha = X yrs.

so, the age of Radha at the time of marriage = (X - 6)yrs.

=> X = 5/4 (X - 6)

=> X/4 = 15/2

=> X = 30

therefore, the present age of Radha is 30yrs

and, the present age of Radha's daughter is 30/10 = 3yrs.