At present Christa's age (in years) is \(2\) more than the square of her cousin Jona's age.

When Jona grows to her cousin's present age, Christa's age would be \(4\) less than \(10\) times the present age of Jona.

Find the present ages of both Christa and Jona.

[NOTE: Use only the higher value]
 
Answer:
 
The present age of Jona is years.
 
The present age of Christa is years.