Question 731087: a mother is 21 years older than her new born daughter how will the daughter be when her age is 1/4 that of her mother's? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! The difference in their ages will always be years
So the mother's age is always
Let = daughter's age when her age is 1/4 that of her mother's
The daughter will be 7 when her age is 1/4 that of her mother's
check:
Mother will be
and
OK