将20000元存入银行,年利息率为10%,按复利计算,3年后的终值应为多少钱?若打算4年以后得到50000万元,年利率为8%,现在应存入银行多少钱?
(F/P,10%,3)=1.331(P/F,8%,4)=0.763(P/F,10%,10)=0.3855
(P/A,10%,10)=6.1446(P/F,12%,10)=0.3220(P/A,12%,10)=5.6502
(P/F,15%,10)=0.2472(P/A,15%,10)=5.0188
【正确答案】:(1)三年后的终值=P×(F/P,10%,3)
=20000×1.331
=26620元
(2)现在存入金额=P×(P/F,8%,4)
=50000×0.763
=38150元