NO.PZ2015120604000009
问题如下：
An investor purchased an annuity many years ago, he will receive $1,200 per year at the end of each of the next 40 years from this annuity. If the interest rate is supposed to be 7%, the present value of the cashflows the investor will receive is closest to:
选项：
A.
$15,998.
B.
$17,193.
C.
$239,662.
解释：
A is correct.
N = 40; I/Y = 7; PMT = -1,200; FV = 0; CPT PV = $15,998.05
pmt用正的算出pv是17117 正负号不同结果不一样呢 为啥pmt是流出呢
