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The average age of a family of five members is 24. If the present age of the youngest member is 8 yr, what was the average age of the family at a time of the birth of the youngest member ? |
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Answer: Option A Explanation: Total age of five members of a family = 24 x 5 = 120
= 120 - 8 x 5 = 120 - 40 = 80 yr Hence, required average age = 80/4 = 20 yr |
Total age of four members at the time of birth of youngest Post your comments here:
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