问题如下图：
选项：
A. 
B. 
C. 
解释：
忘记怎么计算就自己把每年的收益80+280除以1000+4220,就等于答案了。感觉自行悟出了第三种算法。
NO.PZ2017092702000028 问题如下 investor performs the following transactions on the shares of a firm.• t = 0, she purchases a share for $1,000. • t = 1, she receives a vinof $25 anthen purchases three aitionshares for $1,055 each. • t = 2, she receives a totvinof $100 anthen sells the four shares for $1,100 each. The money-weighterate of return is closest to: A.4.5%. B.6.9%. C.7.3%. B is correct.Computation of the money-weightereturn, r, requires finng the scount rate thsets the present value (outflows) equto the present value (inflows). Solving for r, 1,000+3,1651+r=251+r+4,500(1+r)21,000+\frac{3,165}{1+r}=\frac{25}{1+r}+\frac{4,500}{{(1+r)}^2}1,000+1+r3,165=1+r25+(1+r)24,500 results in a value of r = 6.91% 是输完现金流，按IRR再按CPT就行吗，为什么显示error 5
NO.PZ2017092702000028问题如下investor performs the following transactions on the shares of a firm.• t = 0, she purchases a share for $1,000. • t = 1, she receives a vinof $25 anthen purchases three aitionshares for $1,055 each. • t = 2, she receives a totvinof $100 anthen sells the four shares for $1,100 each. The money-weighterate of return is closest to:A.4.5%.B.6.9%.C.7.3%.B is correct.Computation of the money-weightereturn, r, requires finng the scount rate thsets the present value (outflows) equto the present value (inflows). Solving for r, 1,000+3,1651+r=251+r+4,500(1+r)21,000+\frac{3,165}{1+r}=\frac{25}{1+r}+\frac{4,500}{{(1+r)}^2}1,000+1+r3,165=1+r25+(1+r)24,500 results in a value of r = 6.91%经典题最后第四年的NPV也求在CF里了，这里应该是360，为什么不用？
NO.PZ2017092702000028 问题如下 investor performs the following transactions on the shares of a firm.• t = 0, she purchases a share for $1,000. • t = 1, she receives a vinof $25 anthen purchases three aitionshares for $1,055 each. • t = 2, she receives a totvinof $100 anthen sells the four shares for $1,100 each. The money-weighterate of return is closest to: A.4.5%. B.6.9%. C.7.3%. B is correct.Computation of the money-weightereturn, r, requires finng the scount rate thsets the present value (outflows) equto the present value (inflows). Solving for r, 1,000+3,1651+r=251+r+4,500(1+r)21,000+\frac{3,165}{1+r}=\frac{25}{1+r}+\frac{4,500}{{(1+r)}^2}1,000+1+r3,165=1+r25+(1+r)24,500 results in a value of r = 6.91% 求一个这题的计算器按键步骤
NO.PZ2017092702000028 问题如下 investor performs the following transactions on the shares of a firm.• t = 0, she purchases a share for $1,000. • t = 1, she receives a vinof $25 anthen purchases three aitionshares for $1,055 each. • t = 2, she receives a totvinof $100 anthen sells the four shares for $1,100 each. The money-weighterate of return is closest to: A.4.5%. B.6.9%. C.7.3%. B is correct.Computation of the money-weightereturn, r, requires finng the scount rate thsets the present value (outflows) equto the present value (inflows). Solving for r, 1,000+3,1651+r=251+r+4,500(1+r)21,000+\frac{3,165}{1+r}=\frac{25}{1+r}+\frac{4,500}{{(1+r)}^2}1,000+1+r3,165=1+r25+(1+r)24,500 results in a value of r = 6.91% 3165和4500哪里来的，能一下吗？，我按cf0=-1000，cf1=-1030.cf2=1100错在哪里呢
NO.PZ2017092702000028 问题如下 investor performs the following transactions on the shares of a firm.• t = 0, she purchases a share for $1,000. • t = 1, she receives a vinof $25 anthen purchases three aitionshares for $1,055 each. • t = 2, she receives a totvinof $100 anthen sells the four shares for $1,100 each. The money-weighterate of return is closest to: A.4.5%. B.6.9%. C.7.3%. B is correct.Computation of the money-weightereturn, r, requires finng the scount rate thsets the present value (outflows) equto the present value (inflows). Solving for r, 1,000+3,1651+r=251+r+4,500(1+r)21,000+\frac{3,165}{1+r}=\frac{25}{1+r}+\frac{4,500}{{(1+r)}^2}1,000+1+r3,165=1+r25+(1+r)24,500 results in a value of r = 6.91% 请问第一年25块钱收益没有取出来，为什么也要加在现金流里，为什么CF1不是直接用-1055*3？
