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Three years ago, the average age of a family of 5 members was 17 years. A baby having been born the average age of the family is the same today. The present age of the baby (in years) is
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- 2
- 2.4
- 3
- 1.5
- 2
Correct Option: A
Here , Three years ago, the average age of 5 members = 17 years
Three years ago, Total age of the family = 17 × 5 = 85 years
Total age of 5 member family today = 85 + 15 = 100 years
Born on baby , the average age of 6 members = 17 years
Total age of the family with child today = 17 × 6 = 102 years
Age of baby = 102 – 100 = 2 years
