3 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 is

3 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 is Correct Answer 2 years

ধরি, বাচ্চাটির বর্তমান বয়স x বছর 17 = 5 × ( 17 + 3) + x /6 102 = 100 + x x = 102 - 100 x = 2
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