问题如下:
An investor purchased an annuity many years ago. The first payment of the annuity is to be received today. Assume the payment of the annuity is $5,000 constanly , the period the payment is 20 years. and the discount rate is 12%, calculate the today' value of the annuity:
选项:
A. $37,347.
B. $403,493.
C. $41,829.
解释:
C is correct.
Under the BGN mode.
N = 20; PMT = -5,000; I/Y =12; FV = 0; CPT PV = 41,828.89.
请问如何得知是先付?请用中文解释