SSC CPO SI and ASI 2014 Paper

Question : 113 of 200

Marks: +1, -0

Three 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 (in years) is

Validate

Solution:

(1) Three years ago, total age of family

= 17× 5 =85

years
Total present age of family

= 85 +(5× 3)= 100

years
Total present age of family including child

=17× 6 =102

years
Present age of the baby

= 102- 100 =2

years

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