Present age of daughter= y
7yrs ago,
Age of Aftab= x-7
Age of daughter =y-7
A.T.1st.C,
(x-7)= 7(y-7)
x-7 = 7y -49
x-7y = -49 7
x -7y = -42------(1)
If we put x= -7 then y become 5
If we put x=0 then y become 6
3yrs later,
Age of Aftab (x 3)yrs
Age of daughter=(y 3)
A.T.2nd.C
x 3=3(y 3)
x 3 = 3y 9
x-3y = 9-3
x-3y = 6-----(2)
If we put x= 0 then y become-2
If we put x=6 then y become=0
Written on April 5, 2019, 6:12 p.m.