Average - Data Intensity 2 :: Discussion


20.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?
A.1 year
B.1.5 years
C.2 years
D.2.5 years
Answer:  Option  A
Explanation:

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Published by:Michael Daani

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