Selma and Patty Bouvier are twins who work at the DMV and want to save for retirement 35 years in the future. Selma invests $1,900 per year for 10 years, totaling $19,000, earning an annual 8% return. Patty waits 10 years to start investing $1,900 annually for 25 years, totaling $47,500. The summary asks how much each will have saved at retirement.