Let the present ages of A, B and C be a, b and c years, respectively ∴a+b+c=24×3=72...(1) Sum of ages of A and B four years ago=(a−4)+(b−4) =18×2 =36 ∴a+b=36+8=44....(2) From (1) and (2), we have c=72−44=28 Present age of C = 28 years Therefore, after 8 years, age of C=28+8 = 36 years