The present age of a woman is 30years older than her daughter. 15years ago she was twice as old as her daughter. How old is her daughter at present. How old would the woman be 12years from now.

Answer 1

W-30=D
w-15=2(D-15)

subtract the equations:
-30+15=D-2D+30
D=30+15=45
W=75

Answer 2

since w=75 then then the daughter will be: D=75-30
=45

and the women will be 75-12=63