Sheila is 17 years younger than Gil. If Gil' s age is written after Sheila's the result is a four-digit perfect square.The same statement could be made 13 years from now find Sheila's age.
By brute force :
Gil's current age = 36
Sheila's current age = 36 - 17 = 19
Perfect square = 1936 = 44^2
In 13 years
Gil = 49
Sheila = 32
Perfect square = 3249 = 57^2
+110 
