问一道题：NO.PZ2018062001000001 [ CFA I ]

NO.PZ2018062001000001问题如下Jaestimates ththe revenue of TheobalCo. will increase from $1000 to $2000 anprofit will increase from $400 to $1200 in the following six-yefrom now on. The expectecompounannugrowth rate of TheobalCo. is:A.Revenues:12%, profit 20%.B.Revenues: 20%, profit 12%.C.Revenues:20%, profit 25% .A is correct.For the company’s revenues, $2000=$1000 × (1+r)6, r =12.25%For the company’s profit $1200= $400 × (1+r)6 , r=20.09%.revenue 6年从1000涨到2000，所以增长率就是1000（1+r）^6=2000，如果从公式的角度可以理解为PV（1+r）^n=FV。从计算器的角度就是PV=-1000，难道不应该是正1000吗？

NO.PZ2018062001000001 或者应该去看那个章节的知识点呀？

NO.PZ2018062001000001 Revenues: 20%, profit 12%. Revenues:20%, profit 25% . A is correct. For the company’s revenues,  $2000=$1000 × (1+r)6,  r =12.25% For the company’s profit  $1200= $400 × (1+r)6 , r=20.09%.老师您好，请问题目里面from now on 里面有没有先付年金的意思，不过题目里好像也没有用到。考试时候会影响N吗

不好意思我计算器没按明白，麻烦了

这道题不理解英文意思也不会做啊，请老师讲解一下吧！