王秋宇 · 2022年04月25日
NO.PZ2018062016000011
问题如下：
To increase current investment value of $25,000 to $35,000 in 5 years, which will be the most appropriate below?
选项：
A.deposit in the account that stated annual rate of 6.55% and compounded continuously
B.deposit in the account that stated annual rate of 7% and compounded monthly
C.deposit in the account that stated annual rate of 6.79% and compounded quarterly
解释：
C is correct. $25,000(1+r/4)4*5=$35,000, r=6.79%.
如果复利连续计算，用对数算的话，是不是这么算呢？
35/25=e的R次方，R=ln(35/25)。
NO.PZ2018062016000011 问题如下 To increase current investment value of $25,000 to $35,000 in 5 years, whiwill the most appropriate below? A.posit in the account thstateannurate of 6.55% ancompouncontinuously B.posit in the account thstateannurate of 7% ancompounmonthly C.posit in the account thstateannurate of 6.79% ancompounquarterly C is correct. $25,000(1+r/4)4*5=$35,000, r=6.79%. 选B，FV为35440.63 35000，收益更高，所以为什么不选B呢，问题问的是最合适的方式。
NO.PZ2018062016000011 month=(1+6.96%/12)12次方-1=7.2% quarter=(1+6.96%/4)4次方-1=7.14%
NO.PZ2018062016000011 posit in the account thstateannurate of 7% ancompounmonthly posit in the account thstateannurate of 6.79% ancompounquarterly C is correct. $25,000(1+r/4)4*5=$35,000, r=6.79%.为什么要算成季度？不是年么？
NO.PZ2018062016000011 posit in the account thstateannurate of 7% ancompounmonthly posit in the account thstateannurate of 6.79% ancompounquarterly C is correct. $25,000(1+r/4)4*5=$35,000, r=6.79%.怎么理解这道题用的这个公式呢 谢谢
