The average of 5 members of a family is 24 years. If the youngest member is 8 years old, then what was the average age (in years) of the family at the time of the birth of the youngest member?
A) 16 B) 20 C) 24 D) 30
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The average age of a family of 5 members is 24 years old. If the ... Total age = 5 x 24 = 120. Eight years ago the total would have been 120 - (5x8) = 80. Immediately after the youngest was born the family's average age would have been 16.
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