问题如下图：
这道题看了好几个讲解但还是没有明白
“假设现在1，那么五年后就变成2，相当于就是求1*(1+r)^5=2其中的这个r; net income 也是这样，假设现在的net income为1，那么五年后就变成3，相当于就是求1*(1+r)^5=3其中的这个r。”看到有解释是这么写的，所以意思是这两个r的值是不一样的对吗，然后需要把r的值给计算出来吗？感谢各位老师同学，这题真的太迷糊了！
选项：
A. 
B. 
C. 
解释：
Olive_品职助教 · 2019年07月23日
同学你好，这道题题干说：一个分析师预期公司的sales将在接下来的五年翻倍，这个公司的net income将在接下来的五年内变成3倍，基于这个分析师的预期，计算一下sales和net income的年增长率（复利计息）。
如果没法理解sales和net income的区别，先不用纠结，学完财务这门课就会清晰。我们就简单的把sales和net income当成两个变量，这两个变量在五年内如何变化题目信息也有。你看的解答是把sales和net income都假设成1，然后一个在五年后变成2，一个在五年后变成3，分别计算二者的增长率。增长率的计算跟咱们在银行存钱复利利息是一样的。以sales为例，一开始1块，五年后变成2块，期间的复利过程就是1*(1+r)^5=2，然后解出r是15%，net income也一样。 加油！
NO.PZ2015120601000001 问题如下 analyst expects tha company’s net sales will uble anthe company’s net income will triple over the next five-yeperiostarting now. Baseon the analyst’s expectations, whiof the following best scribes the expectecompounannugrowth? A.Net sales will grow 15% annually annet income will grow 25% annually. B.Net sales will grow 20% annually annet income will grow 40% annually. C.Net sales will grow 25% annually annet income will grow 50% annually. A is correct.Using the genertime value of money formulfor sales, solve for r in the equation 2 = 1 × (1+r)5. For income, solve 3 = 1 × (1+r)5. Alternatively, using a financicalculator, for sales, enter N = 5, PV = 1, PMT = 0, FV = −2 ancompute I/Y. For income, change the FV to −3 anagain solve for I/Y. The solution for sales is 14.87%; anfor income is 24.57%. fv为什么用-的？
NO.PZ2015120601000001问题如下analyst expects tha company’s net sales will uble anthe company’s net income will triple over the next five-yeperiostarting now. Baseon the analyst’s expectations, whiof the following best scribes the expectecompounannugrowth?A.Net sales will grow 15% annually annet income will grow 25% annually.B.Net sales will grow 20% annually annet income will grow 40% annually.C.Net sales will grow 25% annually annet income will grow 50% annually.A is correct.Using the genertime value of money formulfor sales, solve for r in the equation 2 = 1 × (1+r)5. For income, solve 3 = 1 × (1+r)5. Alternatively, using a financicalculator, for sales, enter N = 5, PV = 1, PMT = 0, FV = −2 ancompute I/Y. For income, change the FV to −3 anagain solve for I/Y. The solution for sales is 14.87%; anfor income is 24.57%.老师，能不能一下这道题的具体知识点和做法，不太理解为什么会和计算机这样联系到一起，没有看到求任何rate呀，pmt呀这种
NO.PZ2015120601000001问题如下 analyst expects tha company’s net sales will uble anthe company’s net income will triple over the next five-yeperiostarting now. Baseon the analyst’s expectations, whiof the following best scribes the expectecompounannugrowth?A.Net sales will grow 15% annually annet income will grow 25% annually.B.Net sales will grow 20% annually annet income will grow 40% annually.C.Net sales will grow 25% annually annet income will grow 50% annually.A is correct.Using the genertime value of money formulfor sales, solve for r in the equation 2 = 1 × (1+r)5. For income, solve 3 = 1 × (1+r)5. Alternatively, using a financicalculator, for sales, enter N = 5, PV = 1, PMT = 0, FV = −2 ancompute I/Y. For income, change the FV to −3 anagain solve for I/Y. The solution for sales is 14.87%; anfor income is 24.57%.测试
NO.PZ2015120601000001问题如下analyst expects tha company’s net sales will uble anthe company’s net income will triple over the next five-yeperiostarting now. Baseon the analyst’s expectations, whiof the following best scribes the expectecompounannugrowth? A.Net sales will grow 15% annually annet income will grow 25% annually. B.Net sales will grow 20% annually annet income will grow 40% annually. C.Net sales will grow 25% annually annet income will grow 50% annually. A is correct.Using the genertime value of money formulfor sales, solve for r in the equation 2 = 1 × (1+r)5. For income, solve 3 = 1 × (1+r)5. Alternatively, using a financicalculator, for sales, enter N = 5, PV = 1, PMT = 0, FV = −2 ancompute I/Y. For income, change the FV to −3 anagain solve for I/Y. The solution for sales is 14.87%; anfor income is 24.57%.看不懂答案
NO.PZ2015120601000001 Net sales will grow 20% annually annet income will grow 40% annually. Net sales will grow 25% annually annet income will grow 50% annually. A is correct. Using the genertime value of money formulfor sales, solve for r in the equation 2 = 1 × (1+r)5. For income, solve 3 = 1 × (1+r)5. Alternatively, using a financicalculator, for sales, enter N = 5, PV = 1, PMT = 0, FV = −2 ancompute I/Y. For income, change the FV to −3 anagain solve for I/Y. The solution for sales is 14.87%; anfor income is 24.57%. 对于这样的题，只会用财务计算器行不行？
