开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

雷雷12322 · 2023年02月11日

还是没看明白答案解释

NO.PZ2018062016000014

问题如下:

Tom has twin daughters Lucy and Lily at 12 years old. Six years later, both will study in a famous university in California for four years with a tuition fee of $6,000 paid at the beginning of each year per person. Assume the annual discount rate is 5%, today Tom should prepare:

选项:

A.

$16,670

B.

$33,340

C.

$31,753

解释:

B is correct. Six years later, Tom will pay tuition fee of $12,000 each year and last for 4 years, as he has two daughters. The payment is paid in the front, therefore set the calculator at BGN mode and input: N=4, I/Y=5%, PMT=12,000, FV=0, then PV=44678.98. The value of tuition fund at year 6 is $44,678.98, so the present value is $44,678.98/(1+5%)6=$33,340.

6年后为什么不是19那个点开始第一笔现金流到22节点呢?这种题目一直分不清这中间的节点和具体N是怎么算出来的,一次都没做对过,有没有容易理解的方法

1 个答案

星星_品职助教 · 2023年02月12日

同学你好,

本题的时间点没有固定的描述规律。但题目很直白,相当于目前是0时点,6年后就是6时点付首笔现金流(也可以理解为现在是12时点,6年后是18时点,不影响解题)

CFA题目的时点都很简单,不需要很复杂的分析,简单加减就可以。几乎不会涉及年初或年末等数字游戏。

------

确定首笔付款在6时点后,有两种解题思路:

1)按照题干说的BGN模式,将四笔学费现金流折现到6时点,再往前折6期,得到现值;

2)不需要去管是什么年金,反正首笔现金流在6时点,四笔现金流已经确定为了6、7、8、9四个时点。直接将这四笔现金流折现到5时点就可以,然后再往前折现5期。

可以两种方式都尝试一下,结果一定是一样的。大部分人会因为题干的描述而选择做法一,但实际上做法二更为简单和常用。

-------

如前所述,本题的时间点没有固定的描述规律。但很多题目有如下的规律可记忆:

1)....make the first payment in six years。这个描述指得就是首笔现金流在6时点发生;

2)....starting from 6 years.这个描述同样也是指首笔现金流在6时点发生


  • 1

    回答
  • 1

    关注
  • 299

    浏览
相关问题

NO.PZ2018062016000014问题如下Tom htwin ughters LuanLily 12 years ol Six years later, both will stu in a famous university in California for four years with a tuition fee of $6,000 paithe beginning of eayeper person. Assume the annuscount rate is 5%, toy Tom shoulprepare:A.$16,670B.$33,340C.$31,753B is correct. Six years later, Tom will ptuition fee of $12,000 eayeanlast for 4 years, he htwo ughters. The payment is paiin the front, therefore set the calculator BGN mo aninput: N=4, I/Y=5%, PMT=12,000, FV=0, then PV=44678.98. The value of tuition funye6 is $44,678.98, so the present value is $44,678.98/(1+5%)6=$33,340.为什么前六年不用利率除以6加一‘而是直接加上百分之五什么情况下用EAR、 什么时候括号外是每年次数乘以年数 、什么时候不用除以次数直接相加利滚利

2023-06-24 16:32 1 · 回答

NO.PZ2018062016000014 问题如下 Tom htwin ughters LuanLily 12 years ol Six years later, both will stu in a famous university in California for four years with a tuition fee of $6,000 paithe beginning of eayeper person. Assume the annuscount rate is 5%, toy Tom shoulprepare: A.$16,670 B.$33,340 C.$31,753 B is correct. Six years later, Tom will ptuition fee of $12,000 eayeanlast for 4 years, he htwo ughters. The payment is paiin the front, therefore set the calculator BGN mo aninput: N=4, I/Y=5%, PMT=12,000, FV=0, then PV=44678.98. The value of tuition funye6 is $44,678.98, so the present value is $44,678.98/(1+5%)6=$33,340. 按照答案写的计算顺序,第一步计算N=4, I/Y=5%, PMT=12,000, FV=0, then PV是44678.98,这里为什么用先付年金的公式呢,交学费的类似题目,比如讲义P17页的例题中第一步计算器也是用后付年金的公式,按照例题思路第二步用计算器n应该是5啊,为啥是6

2023-01-15 15:19 1 · 回答

NO.PZ2018062016000014问题如下Tom htwin ughters LuanLily 12 years ol Six years later, both will stu in a famous university in California for four years with a tuition fee of $6,000 paithe beginning of eayeper person. Assume the annuscount rate is 5%, toy Tom shoulprepare:A.$16,670B.$33,340C.$31,753B is correct. Six years later, Tom will ptuition fee of $12,000 eayeanlast for 4 years, he htwo ughters. The payment is paiin the front, therefore set the calculator BGN mo aninput: N=4, I/Y=5%, PMT=12,000, FV=0, then PV=44678.98. The value of tuition funye6 is $44,678.98, so the present value is $44,678.98/(1+5%)6=$33,340.一个孩子如果第六年初(第五年末)交6000,那后付计算器算出来的PV不是第四年末的PV21275.7吗?为什么是第五年末呢?

2022-09-01 16:31 1 · 回答

NO.PZ2018062016000014 问题如下 Tom htwin ughters LuanLily 12 years ol Six years later, both will stu in a famous university in California for four years with a tuition fee of $6,000 paithe beginning of eayeper person. Assume the annuscount rate is 5%, toy Tom shoulprepare: A.$16,670 B.$33,340 C.$31,753 B is correct. Six years later, Tom will ptuition fee of $12,000 eayeanlast for 4 years, he htwo ughters. The payment is paiin the front, therefore set the calculator BGN mo aninput: N=4, I/Y=5%, PMT=12,000, FV=0, then PV=44678.98. The value of tuition funye6 is $44,678.98, so the present value is $44,678.98/(1+5%)6=$33,340. 6年后的年初需要交资金,那么在时间轴上体现为17岁末18岁初? 折算到12岁(toy)是指12岁初还是末呢 这个题意现金流怎么把控,(此外延伸问一下其他CFA考试中涉及的现金流末尾一般是)

2022-08-22 15:47 1 · 回答