Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.
Let sons age = x years. Then fathers age = (45 - x)years.
(x - 5)(45 - x - 5) = 4(45 - x - 5) hence (x - 5) = 4 so x = 9
Their ages are 36 years and 9 years.