Present age of father is 42 years and that of his son is 14 years. Find the ratio of (d) Age of father to the age of son when father was 30 years old.

Present age of father is 42 years and that of his son is 14 years. Find the ratio of (b) Age of the father to the age of son, when son was 12 years old.

Present age of father is 42 years and that of his son is 14 ears. Find the ratio of ( c) Age of father after 10 years to the age of son after 10 years.

Present age of father is 42 years and that of his son is 14 years. Find the ratio of (a) Present age of father to the present age of son.

Sum of the ages of a father and the son is 40 years. If father's age is three times that of his son, then find their respective ages.

When Rupa was born, her father was 25 years old. Form an equation and draw a graph for this data. From the graph find (i) The age of the father when Rupa is 25 years old. (ii) Rupa’s age when her father is 40 years old.

Four years ago, the age of a person was thrice that of his son. Eight years later, the age of the person will be twice that of his son. Find the present ages of the person and his son.

The present age of the father is twice the sum of the ages of his 2 children. After 20 years, his age will be equal to the sum of the ages of his children. Find the age of the father.

The age of a man is twice the square of the age of his son . After eight years , the age of the man will be 4 years more than three times the age of his son. Find their present age.

From the pair of linear equations for the following problems and find their solutions by substitution method. Five years hence the age of Jacob will be three times that of his son. Five years ago , Jacob age was seven times that of his son. What are their present ages.

Baichung's father is 26 years younger than Baichung's grandfather and 29 years older than Baichung.The sum of the ages of all the three is 135 years.What is the age of each one of them?