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 :
Solution
Correct Answer: Option C
Present age of 5 members = 5 x 17 + 3 x 5 = 100 years Also, present ages of 5 members + Age of the baby = 6 x 17 = 102 years Age of the baby = 102 – 100 = 2 years.
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