If my Neice is 9 and I'm 25 how old will I be when she turns 30

Question

My Neice want to know how old will I be when she turns 30 she is 9 & I'm 25

Answer 1

If your niece is 9, then she will turn 30 in 21 years.

21 years from now, a 25 year old will be 46.