Question 1026100
My age 15 years

Fathers age 45 years

difference = 30 years

let my father be twice my age after n years

my age after n years 15+n

Father's age after n years

45 +n

SO
45+n = 2(15+n)

45+n = 2n +30

n =15 

after 15 years 

15+15 = 30 

15+45 = 60