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chevalier913 · 2019年04月03日

问一道题：NO.PZ2015120604000170 [ CFA I ]

  1. CFA I
  2. Quantitative

我的理解是，连续交了教育基金15年，每年年末交教育基金，然后从第15年末也就是16年初开始交学费。

题目最大的歧义就是没有说清楚教育基金交了多少年

问题如下图：

选项：

A.

B.

C.

解释：

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2 个答案

Vera · 2019年04月22日

交学费既然是先付年金的形式，难道不应该用BGN来算学费折线到T=14的PV吗？

如果用BGN算学费的折线，答案是C

菲菲_品职助教 · 2019年04月04日

同学你好，这个是需要自己画图进行判断的哈。

AJ从现在开始每年存一笔钱一直到第十五年开始交他孩子的学费，相当于T=15时开始有PMT的支出，持续四年，到T=18时全部付完学费。Step1算出来的PV其实是将T=15、16、17、18时的这四笔PMT折现到T=14这个时间点，所以这个PV=PV14。导致Step2里面的N=14而不是15。这道题目画个图会更加清晰一点，也便于你的理解。

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NO.PZ2015120604000170问题如下 A.J. plans to phis chils tuition fee for four years starting 15 years from now. He estimates the fees is $22,000 per year. If the saving account interest rate is 5.5% annually, anhow mupayment A.J. shoulmake the enof eayefrom now? A.$3,441.23B.$3,800.07C.$4,009.08B is correct.Step 1: N = 4, FV = 0, I/Y = 5.5, PMT = 22,000, CPT PV = -77,113.30Step 2: PV =0, N = 14, I/Y = 5.5, FV = 77,113.30, CPT PMT =-$3,800.07老师，我发现我做类似的题最容易做错的部分就是前面一个时间段短年份数，就像这道题，我就会按照15年来计算。

2023-07-21 11:57 1 · 回答

NO.PZ2015120604000170问题如下 A.J. plans to phis chils tuition fee for four years starting 15 years from now. He estimates the fees is $22,000 per year. If the saving account interest rate is 5.5% annually, anhow mupayment A.J. shoulmake the enof eayefrom now? A.$3,441.23B.$3,800.07C.$4,009.08B is correct.Step 1: N = 4, FV = 0, I/Y = 5.5, PMT = 22,000, CPT PV = -77,113.30Step 2: PV =0, N = 14, I/Y = 5.5, FV = 77,113.30, CPT PMT =-$3,800.07为什么N是14题目不是说从现在开始的15年吗

2023-06-08 19:57 1 · 回答

NO.PZ2015120604000170 问题如下 A.J. plans to phis chils tuition fee for four years starting 15 years from now. He estimates the fees is $22,000 per year. If the saving account interest rate is 5.5% annually, anhow mupayment A.J. shoulmake the enof eayefrom now? A.$3,441.23 B.$3,800.07 C.$4,009.08 B is correct.Step 1: N = 4, FV = 0, I/Y = 5.5, PMT = 22,000, CPT PV = -77,113.30Step 2: PV =0, N = 14, I/Y = 5.5, FV = 77,113.30, CPT PMT =-$3,800.07 除非北美那边学费是年末付的。 这个显然不符合常理吧。是不是算4年学费现值应该选年初支付呢。因为这个是有差异的呀。

2023-04-22 10:01 1 · 回答

NO.PZ2015120604000170 问题如下 A.J. plans to phis chils tuition fee for four years starting 15 years from now. He estimates the fees is $22,000 per year. If the saving account interest rate is 5.5% annually, anhow mupayment A.J. shoulmake the enof eayefrom now? A.$3,441.23 B.$3,800.07 C.$4,009.08 B is correct.Step 1: N = 4, FV = 0, I/Y = 5.5, PMT = 22,000, CPT PV = -77,113.30Step 2: PV =0, N = 14, I/Y = 5.5, FV = 77,113.30, CPT PMT =-$3,800.07 15、16、17、18年需要交学费，那应该是年初交，所以计算机要调整成BGN，N=4,I/Y=5.5,PMT=22000,FV=0,得出折现到15年时候得PV=81354；从现在0时刻开始，每年年末存一笔钱，到14年，一共存了14笔，计算机调整成ENN=14,I/Y=5.5,PV=0,FV=-81354,

2023-02-03 14:57 2 · 回答

NO.PZ2015120604000170 问题如下 A.J. plans to phis chils tuition fee for four years starting 15 years from now. He estimates the fees is $22,000 per year. If the saving account interest rate is 5.5% annually, anhow mupayment A.J. shoulmake the enof eayefrom now? A.$3,441.23 B.$3,800.07 C.$4,009.08 B is correct.Step 1: N = 4, FV = 0, I/Y = 5.5, PMT = 22,000, CPT PV = -77,113.30Step 2: PV =0, N = 14, I/Y = 5.5, FV = 77,113.30, CPT PMT =-$3,800.07 这道题可以翻译下吗 我理解的是用15年每年定期存入的钱支付4年的学费，那么N就是等于15呀

2022-12-19 14:01 3 · 回答