4 years ago the average age of a family of 4 members was 18 years, with the birth of a new baby, the average remains the same even today. Fi

Question

4 years ago the average age of a family of 4 members was 18 years, with the birth of a new baby, the average remains the same even today. Find the age of the baby?​

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2 months 2021-12-03T03:59:12+00:00 1 Answer 0 views 0

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  1. Ava
    0
    2021-12-03T04:00:42+00:00

    Step-by-step explanation:

    According to the question

    According to the question

    Average age of a family of 5 members 3 year ago = 17 years

    sum of ages of a family members = 5×175×17 = 85 years

    A baby having been born the average age of the family is same today.

    Sum of age of a family of 6 members = 17×617×6 = 102 years

    sum of age of a family of 5 members at present = 85+5×3=85+1585+5×3=85+15 = 100 years

    Age of Child = 102 – 100 = 2 years

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