NO.PZ2018062016000029
问题如下：
Michael manges a fund, the return of year1,2,3 shows below:
The time-weighted rate of return will be:
选项：
A.5.7%
B.4.3%
C.5.5%
解释：
C is correct.
TWRR = [ (1.13) (1.05) (0.99)]1/3- 1 = 5.5%
老师上课时有提到并不是每次算Time-weighted rate of return都是有次方的，这题计算TWRR用了三次方。题目该怎么问，才会让TWRR是一次方？
