Problem on Ages

A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?

• 32 years

• 36 years

• 40 years

• 48 years

Answer explanation

The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years).

• 8,20,28

• 16,28,36

• 20,35,45

• None of these

Answer explanation

The present age of a father is 3 times that of his son. Five years ago, the father was 4 times the age of the son. What is the present age of the son?

• 10 years

• 15 years

• 20 years

• 25 years

Answer explanation

The average age of a family of 6 people is 22 years. If the youngest member (aged 7) is excluded, what is the new average age of the family?

• 23.8

• 24.8

• 25

• 26

Answer explanation

The ages of A and B are in the ratio 6:5. If 5 years are added to each, the ratio becomes 7:6. What is A's present age?

• 30

• 35

• 40

• 45

Answer explanation

Five years ago, a man was 7 times as old as his son. Five years hence, he will be 3 times as old. What is the present age of the son?

• 5

• 10

• 15

• 20

Answer explanation

The ages of A and B are in the ratio 3:4. After 5 years, the ratio becomes 4:5. What is B’s present age?

• 20

• 24

• 28

• 32

Answer explanation

The average age of 4 people is 36 years. A fifth person joins and the average becomes 34. What is the age of the new person?

• 24

• 26

• 28

• 30

Answer explanation

At present, the ratio between the ages of Arun and Deepak is 4 : 3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present ?

• 12 years

• 15 years

• 19 years

• 21 years

Answer explanation

The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

• 4 years

• 8 years

• 10 years

• None of these

Answer explanation