3ij˾\Dȯÿֵ1000ԪÿDȯD۸40ԪÿȯܹDƱĹ
A.40
B.15
C.30
D.25
SD
ÿȯܹDƱĹDʣD۸=ȯֵ/DʣD=ȯֵ/D۸=1000/40=25
3.Dȯȱ
Z?BR>1ɽsϢ֧
2ȶƱмP
J˾ĚM?5ԪDȯD۸30ԪIQ?000ʽ
÷ͨɵķʽҪ1000/25=40Ʊ
\DȯDĹ1000/30С40
3ԡ
ȱ?BR>1Թ
2՟۷գ
3ɼ۴P?BR>
1.\弰?BR>ʽ
ֱޣֱҪʲ֧z쳧Ҏ?/P>
ۺأf飬ҵijʲˣٽgáȹ?BR>ܸޣ漰ˡ˺ʽˡӛǽˣͬʱӔʲȨȡҪ?BR>2.^
豸ۿ䓧?BR>ϢʳѣIIúһӯ
3.ļ
ҹIļ㷽һõȶ?BR>ԭʽrֵмAԭ
1ļ㣺A=P/P/A,i,n
[3-10]ļ
ijIʽ200411մij˾һ_豸ۿ40000Ԫ8ݏIУ˱C ˾ȫֲʳصѲһӯp̶18%ʣsIÿĩ֧ĵȶ𡣡
P=A×P/A,i,n
A=40000/P/A,18%,8
=40000/4.07769809.69Ԫ
2ȸļ㣺A=P/ [P/Ai,n-1+1]
3-11]ȸļ
ȸȶʽÿ֧ɼn