Expert

Let the present age of father be x and the son be y. Now, x = 4y ---------- (1) After 16 years, age of father will be x+ 16 age of son will be y +16 Therefore, x + 16 = 2( y + 16) x + 16 = 2y + 32 x = 2y + 16 or 4y = 2y + 16 {Using equation (a)} 2y = 16 y...