Question

求问一道公司理财的题目，拜托大家了

1. Today, you turn 21. Your birthday wish is that you will be a millionaire by your 40th birthday. In an attempt to reach this goal, you decide to save $25 a day, every day until you turn 40. You open an investment account and deposit your first $25 today. What rate of return must you earn to achieve your goal?
A. 15.07%
B. 15.13%
C. 15.17%
D. 15.20%
E. 15.24%
希望有详尽讲解过程

Answer 1

是根据这个公式去计算的：a表示本金,r表示利息
n年后本金和=a(1+r) ^n，但是这道题是按天计算的，你换一下！这里的意思是21岁的人希望自己40岁时成为百万富翁，于是每天投资25美元，需要的投资回报率是多少！你算算吧哥们！方法告诉你了，这道题很有意思！