What will be the Age of Baby Today? If

Three years ago the average age of 5 family members was 17 years. A baby having been born. the average age of the family remains the same today. The age of the baby today

  1. 3 year
  2. 2 year
  3. 1 year
  4. 1.5 year
Manish Listener Asked on 17th July 2015 in Maths.
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1 Answer(s)

Answer: (2) 2 years
Explanation:-
Let be the age of new born baby= X years.
Three years ago the average age of 5 family member = 17 years
Then, the present age of 5 family member = 17 x 5 + 3 x 5 = 85 + 15 = = 100 years
According to the question,
The present age of new born baby = (100 + X)/6 = 17
(100 + X )/6 = 17
100 + X = 17 x 6
100  + X = 102
X = 102 – 100
X = 2 years
Hence, the answer is (2) 2 years.

Anurag Mishra Professor Answered on 18th July 2015.
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