text: # I was 8 years old when my father was 31 . Now he is twice as old as I am. How old am I?
  
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  posted Sep 13
  
  ## 1 Solution
  
  23 years
  after 15 years ,
  I=8+15=23;
  and father =31+15=46
  that is twice the age of I
  so, I is 23 years then his father age is 31+15=46
  
  solution Sep 13
  
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