three years ago the average age of a family of six members was 19 years. a boy

Question

three years ago the average age of a family of six members was 19 years. a boy have been born, the average age of the family is the same today. what is the age of the boy?

Options:

A . 1 year

B . 1.5 years

C . 2 years

D . 2.5 years

Answer: Option A
Explanation :

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