裺Ӫҵ?60
AƸ 60
2.ļ
ļҪ漰⣺һ_;ANɻõIJĴ
AƸr֧Cʼ֧һҸ÷ԍĿͬģ÷ԑмֵ_1˾|⳥?0Ԫ70Ԫ֮䣬ԓΧ䓃eͬZȷԤƄ?0Ԫ
nֱ
a.漰ĿģܷhĿָ漰Ŀֻһһһδٲûһծ?Ŀ
b.漰Ŀģ䓿ܽظ?ƽ)漰Ŀָ漰ĿֻһEƷCУƷҪĿͻأIЩͻбݷĸʼص\ü__ϵĸ(ƽ)
2˾2007۶Ʒ1000ԪEƷԜԷSޡ
飬n?0%֧S;СĿ15%СS2%;ϴĿ4%ϴS10%;Ŀ1%S20%
2007IJƷC=(1000 ×2%)×15%+(1000 ×10%)×4%+(1000 ×20%)×1%=3+4+2=9(Ԫ)˾
裺?9Դ
AƸƷC 9
2.ļļҪ漰⣺һ_;ANɻõIJĴ
(2)I峥ԤƄ֧ȫԤɵģֻڻȊ^յʱΪʲȏUȏUĽHAƸĽȷʱӦע⣺
ֻڡ_Kr_ϣĸ95%rˣڡ
E_ʲ롉ΦտĿֱӳAƸ
_fĽܳԤƄĽ_ϲĽԤƄĽʹ_˻ʲ`˽ԭ
ANɻòУ(1)ͨ¹rIͨfչ˾úIJ;(2)ijЩУIͨߵķʽ˻⳥?(3)IУIеͬrͨlĘIҪ
320071225ռ˾ַBIBI]Ҫ?00Ԫ1231ݚԺδо˾оߵĿ80%⳥?0Ԫ˾_AƸ60Ԫ
Ԃ˾ίеC˾YĿr˾C˾80Ԫ_ܻ50Ԫ˾ƴn
裺Ӧ?50
II֧ 50(ʧ)