atieno is now four times as old as her daughter and six times as old as her son. twelve years from now the sum of the ages of her daughter and son will differ from her age by 9 years. what is Atieno's present age

Atieno is 36 years old now.

Now: In 12 years:

Atieno x years x + 12 years

Son x/6 years (x/6 + 12) years

Daughter x/4 years (x/4 + 12) years

(x/6 + 12) + (x/4 + 12) = (x+12) - 9

21 = x - x/6 - x/4

21 = 7x/12

7x = 252

x = 36