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      Question

      9 years ago, the average age of a family of six persons

      was 60 years. In between these 9 years the family adopted a girl. Now at present the average age of the family is same as it was 9 years ago. Find the present age of the girl. TYPE 35
      A 5 years Correct Answer Incorrect Answer
      B 6 years Correct Answer Incorrect Answer
      C 3 years Correct Answer Incorrect Answer
      D 8 years Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Sum of the present age of the family excluding girl = 6 x (60 + 9) = 414 years Sum of the present age of the family including girl = 7 x 60 = 420 years Present age of the girl = 420 тАУ 414 = 6 years

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