Age Relation Problem

## Questions Asked from this Chapter:

### Question Type 1: Based on Ratio

**Example:**

The ratio of the present ages of Puneet and Appu is 2:3. After 3 years the ratio of their ages will be 3:4. The Present age of Puneet is?

a) 3 years

b) 6 years

c) 9 years

d) 4 years

**Solution:**

### Question Type 2: Based on Determining the Average Age

**Example:**

The average age of 40 students of a class is 15 years. When 10 new students are admitted, the average is increased by 0.2 years. The average of the new students is:

a) 15.2 years

b) 16 years

c) 16.2 years

d) 16.4 years

**Solution:**

### Question Type 3: Based on Determining the Present/ After "x" years/ before "y" years age of a Person

**Example:**

The Present age of a father is 3 years more than three times the age of his son. Three year hence father's age will be 10 years more than twice the age of the son. The father's present age is:

a) 33 years

b) 39 years

c) 45 years

d) 40 years

**Solution:**

### Question Type 4: Based on Determining the Number of Students

**Example:**

In a school with 600 students, the average of the boys is 12 years and that of the girls is 11 years. If the average age of the school is 11 years and 9 months, then the number of girls in the school is:

a) 450

b) 150

c) 250

d) 350

**Solution:**

### Question Type 5: Based on Determining the Sum/ Difference of their Ages

**Example:**

The average of A and B is 30 years and that of B and C is 26 years. The difference of the age of A and B is:

a) 2 years

b) 4 years

c) 6 years

d) 8 years

**Solution:**