Ben and Arthur were friends who grew up together. They both knew that they needed to start thinking about the future. At age 19, Ben decided to invest $2,000 every year for eight years. He picked investment funds that averaged a 12% interest rate. Then, at age 26, Ben stopped putting money into his investments. So he put a total of $16,000 into his investment funds.
Now Arthur didn’t start investing until age 27. Just like Ben, he put $2,000 into his investment funds every year until he turned 65. He got the same 12% interest rate as Ben, but he invested 23 more years than Ben did. So Arthur invested a total of $78,000 over 39 years.