Nice one, took some thinking. At first I wasn't too sure of the answer and thought it could be the 29th Feb, but now I thought about the answer more and made sense of it :).
I used to love problem solving before my injury, now it is so much harder. I think if it was on the 2nd, only two years would be displaced, and 22 - 19 is 3. I'm thinking maybe leap year Feb 29, 2015, but I'm probably wrong.
For me problem solving is hard, because it requires memory. Being able to remember future theoretical events events in my mind, is what I have so much trouble doing. Although the birthday is in the past, to solve this problem w/o paper requires you to both remember her age now, your solving technique, and also the effect dates will have on the future answer. Combine that wt some my problem solving difficulty, and it gets really tricky. Thanx for the cranial exercise
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.