Future Value At age 20 soul invest 52.900 that earns 11.75 percent each year. At age 30 you invest $2, 900 that earns 14.75 percent per year. In which case, would you have more money at age 60? At age 30 invest $2, 900 at 14.75 percent. Both yield the same amount at age 60. At age 20 invest S2.900 at 11.75 percent. There is not enough information to determine which case cams the most money at age 60