Question

4 years ago, the average age of the family of 5 members is 23 years. A baby is born now; the average age of the family is same as before. Find the age of the baby?

• A. 7 years
• B. 3 years
• C. 9 years
• D. 5 years

Answer 1

Answer:

B. 3 years

The total present age of the family of 5 members = (23*5) + (4*5) = 135 A baby is born now; the average age of the family is same as before. The total present age of the family of 6 members (Including the baby) = > 23*6 = 138 The age of the baby = 138 – 135 = 3 years