SOLUTION: Mary will be x years old in the year x squared. When was Mary born?

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Question 829890: Mary will be x years old in the year x squared. When was Mary born?
Answer by Edwin McCravy(20055) About Me  (Show Source):
You can put this solution on YOUR website!
The square root of this year √2014 = 44.87761134. 

Therefore the next larger integer than that is x=45, and so the next 
year that will be a perfect square will be x²=45² or the year 2025.  
Therefore Mary will be 45 in 2025, so she was born 45 years before some
part of the year 2025, and 2025-45 = 1980.  So she COULD have been born
in 1980, but not necessarily.  If she was born in 1979, then in 2025, 
she will still be 45 up until her birthday in 2025.

Answer: Mary was either born in 1979 or 1980. 

Edwin