杨嘻嘻 · 2020年10月12日
问题如下：
A.J. plans to pay his child's 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, and A.J. will make payments at the end of each year, how much would A.J. put aside?
选项：
A.$3,441.23
B.$3,800.07
C.$4,009.08
解释：
B is correct.
Step 1: N = 4, FV = 0, I/Y = 5.5, PMT = 22,000, CPT PV = -77,113.30
Step 2: PV =0, N = 14, I/Y = 5.5, FV = 77,113.30, CPT PMT =-$3,800.07
这道题求的不应该是PV吗 为什么是PMT
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。
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
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。
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,
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
