If `1 1/2` years is added to `3/7th` of the age of ravi it will be half of his present age .what is his present age ?

Fifteen years from now Ravis age will be four xx his present age.What is Ravis present age?

Five years ago, the age of a person was half of his present age. How old is he now ?

Thirty years ago, the age of a man was three-fifth of his present age. Find the present age (in years)

Nihar's present age is two-fifth of the age of his mother. After 8 yr, he will be one-half of the age of his mother. Find his present age.

The present age of a father is equal to the sum of the ages of his 5 children. 12 years hence, the sum of the ages of his children will be twice the ages of their father. Find the present age of the father.

The ratio of the present ages of a son and his father is 1:5 and that of his mother and father is 4:5 After 2 years the ratio of the age of the son to that of his mother becomes 3:10 . What is the present age of the father ?