Question

The average age of 5 children is 8 years. If the age of the father is included to the children average becomes 13, then the age of the father is

• A. 38
• B. 37
• C. 34
• D. 30

Hint:

To find the total age of all individuals, multiply the average by the total number of individuals.

Answer 1

The Correct Option is A

The total age of the 5 children is \( 5 \times 8 = 40 \) years. When the father's age is included, the average age becomes 13 years for 6 people: \[ \text{Total age of 6 people} = 6 \times 13 = 78 \text{ years}. \] Thus, the father's age is: \[ \text{Father's age} = 78 - 40 = 38 \text{ years}. \]