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Multiple Choice Questions

3 years ago the average of a family of 5 members was 17 years A baby having been born the average ag...........

Quantitative Aptitude (CPO) Average

3 years ago, the average 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:

5 years

2 years

1 year

4 years

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Explanation:

Total age of 5 members, 3 years ago = (17 x 5) years = 85 years
Total age of 5 members now = (85 + 3 x 5) years = 100 years
Total age of 6 members now = (17 x 6) years = 102 years
Age of the baby = (102 – 100) years = 2 years

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