1. ???????????????????????????????????????????????????????????????????????
  2. ?????????????????????????300????????????700????????????????????????????????????????????
  3. ?????????????????????????150????????????350????????????????????????????????????????????
  4. ?????????100%?????????100%???

?
???
????????
?
???
???3?+??2? ??10609

????????????????????????????????????????????????????

?
????????(??)
?
????????(??)
?
????????(??)
%
??????1?????????40%


??????(3???)
????????????????????????????? ????????????/100-(??????+?????+?????????)
??? ????
?1? ????=????????????????????????? (????????????????)????????? ?? (20%)
?2?
????=????????????????????????? (????????????????)????????????????? ???(30%)-[(30%-20%)???]?-????(????????????????????????????? A)
???????????20???????A?0.10
??????????20?????????20%?A?0.08
??????????30?????????30%?A?0.07
??????????40?????????40%?A?0.06
?3?
????=????????????????????????? (????????????????) ?????????? ???(40%)-[(40%-20%)???]?- ????(????????????????????????????? B)
???????????20???????B?0.30
??????????20?????????20%?B?0.24
??????????30?????????30%?B?0.21
??????????40?????????40%?B?0.18
?????????
??????? 20??? 20?~30? 30?~40? 40???
??? a x 20% a x 20% a x 20% a x 20%
??? a x 30% - b x 10% a x 28% - b x 8% a x 27% - b x 7% a x 26% - b x 6%
??? a x 40% - b x 30% a x 36% - b x 24% a x 34% - b x 21% a x 32% - b x 18%
??? a???????? b???????????????(???????????)
????????
???????????? ?? (10%)
?????????