"But, what age are you?"
Translation:Ach, cén aois sibh?
You posted two years ago and probs don't need this now, but in case body else does this thread is helpful https://forum.duolingo.com/comment/16323229/A-99-Fool-Proof-Way-To-Determine-The-Gender-Of-Irish-Nouns
So, I tried Cén aois atá tú on the previous exercise and it said cén aois sibh was the correct answer. on this exercise I tried Ach, cén aois tú. and it still says it's incorrect. Since I'm using the singular you, is there something I'm forgetting to do - like possibly thú instead? if so, why?