SOLUTION: A father said to his son, "I was your age when you were born". If the father is currently 42years old, how old is the son?

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Question 1083844: A father said to his son, "I was your age when you were born". If the father is currently 42years old, how old is the son?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Father is twice as old as his son, so son is 21 years old.
When the father was 21, his son was born.