第二章
答案:1.F=P(1?i)n = P (F/P,i,n)
=10 000(F/P,8%,9) =10 000×1.999 =19 990
2.根据F=P(1?i)n= P (F/P,i,n) 则:20 000=10 000(F/P,7.18%,n) 求得:n=10年 3.P?F(1?i)?n
=F?P/F,i,n?
?P/F,14%,5? =100000=100 000×0.519
=51 900 4.
FA?A?F/A,i,n?
则:A=FA/?F/A,i,n?=FA?A/F,i,n? =100 000/5.416 =18 463.81
A i40000 =
8%5.PA? =500 000 6.方法一:
PA?A?P/A,i,(n?m)???P/F,i,m?
=5000?P/A,10%,(20?10)???P/F,10%,10? =5 000×6.145×0.386 =11 859.85 方法二:
PA?A(P/A,i,n)?A(P/A,i,m)
=5000(P/A,10%,20)?5000(P/A,10%,10) =5 000×8.514—5 000×6.145 =11 845 7. 方法一:
PA?A?P/A,i,(n?m)???P/F,i,m?
=10000?P/A,3%,(12?4)???P/F,3%,4?
=10 000×7.020×0.888 =62 337.6 方法二:
PA?A(P/A,i,n)?A(P/A,i,m)
=10000(P/A,3%,12)?10000(P/A,3%,4) =10 000×9.954—10 000×3.717 =62 370
8.(1)PA?A?P/A,i,n?
则: 106 700=20 000×?P/A,10%,n?
?P/A,10%,n?=5.335
查表求得:n=8 年
(2)PA?A?P/A,i,n? A=PA/?P/A,i,n? =106 700/?P/A,10%,8? =106 700/5.335 =20 000 9.PA?A?P/A,i,n?
1 000 000=200 000(P/A,i,8) 则 (P/A,i,8)=5
查表得(P/A,11%,8)=5.146 (P/A,12%,8)=4.968 利用插值法: 解得i=11.82% 10.(1)投产前求的是预付年金终值,投产后求的是复利终值,有两种求法:
F?100??F,10%,3?1??1???AFP,10%,3??484.6(万元)
或F?100?FA,10%,4??100?FA,10%,5??100?FA,10%,6??484.(万元)61
(2) 根据题意:
100F??A,10%,3?1??1??1?10%??A?P,10%,3?AA?161(万元)11.
已知:n?6、FA?480、i?5%、求A。
n ?1?i??1根据FA?A i FAi480?5%则:A???70.57(万元)n6 ?1?i??1?1?5%? 12.
正常销售:PA?200?0.1P,10%,5?75.82(万元)A
打折销售:P?1000?0.1?85%??1?10%??77.265(万元) 由于77.265?75.82,因此85折销售有利。13.
1 1?7??1?10% PA?100?486.8(万元)10%
由于486.8?500,因此分期付款有利。 14.
1)期望值、标准差、标准差率 (K?120?0.2?100?0.5?60?0.3?92(万元) ???120?92?2?0.2??100?92?2?0.5??60?92?2?0.3 ?22.27(万元)
22.27V??100%?24.21%
92
(2)风险报酬率期望值
RR?10%?24.21%?2.42%
(3)风险报酬率预测值
92 RR??12%?6.4P0
因为6.4%?2.42%所以方案可行。
?? 第三章 答案:
1.销售额÷年末存货=15 (1)