问题如下图：
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解释：
HPR1难道不是（35/30）-1？我理解HPR2是（5/70）-1，然后HPR3是80/70,对应t0-t1, t1-t2, t2-t3, 怎么d答案HPR1就直接把两年的HPR算了，HPR2zhi只对应了1年？
NO.PZ2015120604000033问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%.B.15.00%.C.23.13%.is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13%你好，问一下。 这个题是用在课程中学过的公式是〈（P1—P0）+I 〉/ P0 算对吧 ？ 〈 35—30+5〉/ 30 = 0.333333
NO.PZ2015120604000033问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%.B.15.00%.C.23.13%.is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13%0.5是什么………？。？。
NO.PZ2015120604000033 问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%. B.15.00%. C.23.13%. is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13% ring the year2, the hong return is 80 / 70 - 1 = 14.29%这里面第二年的本金部分用的是70，这个70一部分是第二年初买的35，这个理解。那另一半35到底是看成初始购买成本30+分红的5还是说是最初购买的升值部分35计算（不算分红）呢？
NO.PZ2015120604000033 问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%. B.15.00%. C.23.13%. is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13% 老师，想问一下，第一年为什么不是35除以30而是加了个吴用四十除以三十呀？
NO.PZ2015120604000033问题如下 Tom bought one share of sto$30 time 0. the enof ye1, the stopai$5 vinper share anthen Tom bought one more share $35.the enof ye2, Tom sol2 shares for $40 each.Calculate the time-weighterate of return on this investment. A.9.88%.B.15.00%.C.23.13%.is correct.ring the year1, the hong return is (35 + 5) / 30 - 1= 33.33%,ring the year2, the hong return is 80 / 70 - 1 = 14.29%Time-weightereturn = [(1.33)(1.14)]0.5 - 1 = 23.13%T0是-30，T1是-35+5，T2是80，请问错在哪里。T1价值上升但并没有变现。
