Age of Aarti = 6 years Age of Aarti's father = 6 years + 19 years = 25 years Age of Aarti's mother = 25 years + 6 years = 31 years Age, at which the mother got married = 31 years - 6 years - 3 years 31 years - 9 years = 22 years. Hence, 22 years is correct.