SOLUTION: When my daughter was born I was 30 years old. At what age of mine, my age will be 3 times of that of my daughter?

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Question 1078176: When my daughter was born I was 30 years old. At what age of mine, my age will be 3 times of that of my daughter?
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!


The father will always be 30 years older than 
his daughter, so

x = daughter's age
x+30 = father's age

x+30 = 3x
  30 = 2x
  15 = x

When she is 15, he will be 30 years older or 45,
and 45 is indeed 3 times 15.

Edwin