NO.PZ2018062016000010
问题如下:
Mary has a separate account for her annual savings which has a stated annual rate of 3% and compounding quarterly. At the end of each year, she transfers unequal cash flows into this account. Year 1: $500, Year 2: $800, Year 3: $0, Year 4: $300, Year 5: $500. How much will Mary save for her account at the end of year 5?
选项:
A.
$2246.81
B.
$2247.65
C.
$2281.00
解释:
B is correct.
本题的答案是每一年单独计算 最后加上总额,我想问一下为什么不是第一年算出来的金额 加上第二年又存进去的的钱作为第二年的本金,以此类推到第五年