The Youngs have been married for 31 years. Their son is 25 and their daughter is 19. In what year were they married? In what year were their daughter and son born? Solution In what year were they married? 2010-31=1979 (assuming their anniversary was before April 26, 2010) In what year was their daughter born? 2010-19= 1991 (again assuming her birthday was before April 26, 2010) In what year was their son born? 2010-25= 1985 (you subtract the age from the current year to get his current age) (now if you had more information on the actual month of marriage and birthday\'s we could then figure out the actual anniversary by months and the chronological age).