QEWS · 2020年02月27日
问题如下：
Mr Swan has an annuity which payments occurs at the beginning of each year. The annuity has an annual interest rate of 5%, each payment is $500 and last for 10 years. The present value of the annuity is closest to:
选项：
A. $3897.99
B. $4053.91
C. $4216.07
解释：
B is correct. Put the calculator in the BGN mode, input data: N=10, I/Y=5, PMT=500, FV=0, calculate the PV=-4053.91. Therefore the present value of the annuity is $4053.91.
老师我设置BGN模式总是算不出来正确的数。我算出来总是-4907.6，为什么啊 好奇怪，好几道题都这样。NO.PZ2018062016000008 问题如下 Mr Swhannuity whipayments occurs the beginning of eayear. The annuity hannuinterest rate of 5%, eapayment is $500 anlast for 10 years. The present value of the annuity is closest to: A.$3897.99 B.$4053.91 C.$4216.07 B is correct. Put the calculator in the BGN mo, input tN=10, I/Y=5, PMT=500, FV=0, calculate the PV=-4053.91. Therefore the present value of the annuity is $4053.91. 就是我明明是年金 存钱，为啥到最后FV =0；我计算时是按照PV =0 求FV 算的但看了答案，是FV= 0 求的PV自己就不太理解，明明是存钱，为啥FV=0
NO.PZ2018062016000008 问题如下 Mr Swhannuity whipayments occurs the beginning of eayear. The annuity hannuinterest rate of 5%, eapayment is $500 anlast for 10 years. The present value of the annuity is closest to: A.$3897.99 B.$4053.91 C.$4216.07 B is correct. Put the calculator in the BGN mo, input tN=10, I/Y=5, PMT=500, FV=0, calculate the PV=-4053.91. Therefore the present value of the annuity is $4053.91. 为什么这里的FV可以按成0来算？
NO.PZ2018062016000008 $4053.91 $4216.07 B is correct. Put the calculator in the BGN mo, input tN=10, I/Y=5, PMT=500, FV=0, calculate the PV=-4053.91. Therefore the present value of the annuity is $4053.91. 这道题判断BGN的那个关键词就是the beginning of the year对吗？ 还有那些关键词可以判断其是先付年金呢？除了明确写出annuity e的
