7.ij˾2003й£
(1)˰Ϣǰ800Ԫ
(2)˰40%
(3)ܸծ2000ԪΪծȯƽϢΪ10%
(4)Ԥͨɱ15%
(5)ͨɹ600000(ÿֵ1Ԫ),ȹɣ
ù˾Ʒг൱ȶԤӯȫڷŹٶƱ۸ڼֵȡ
Ҫ
(1)ù˾ÿӯࡢÿɼ۸
(2)ù˾оʺͼȨƽʱɱ
(3)ù˾400ԪĸծʹծܶΪ2400ԪԱм۸¹عƱ(عƱȡ)ٶٴ뽫ʹծƽϢ12%ͨȨɱ15%ߵ16%˰Ϣǰֲ䡣ʸù˾Ӧıʱṹ(ʾԹƱ۸ߵб)?
(4)ù˾ʱṹıǰѻϢ
𰸼
1˰Ϣǰ800
Ϣ200010%200
˰ǰ600
˰40%240
˰360Ԫ
ÿӯ=360/60=6Ԫ
ÿɼ۸=6/0.15=40(Ԫ)
2ÿӯ=ÿɾʲʲ(ͨɱ)
, ÿɾʲ=ÿӯ/ͨɱ
=6/15%=40(Ԫ)
о=ÿɼ۸/ÿɾʲ=40/40=1
Ȩ=ÿɾʲ=40600000=2400Ԫ
Ȩƽʱɱ=10%2000/(2400+2000)(1-40%)+15%2400/(2400+2000)=10.9%
3˰Ϣǰ800
Ϣ240012%288
˰ǰ512
˰307.2Ԫ
ع=4000000/40=100000ɣ
·ɷ=600000-100000=500000ɣ
µÿӯ=3072000/500000=6.14Ԫ
µĹƱ۸=6.14/0.16=38.38Ԫ
ˣù˾Ӧıʱṹ
(4)ԭѻϢ=800/200=4
ѻϢ800/(240012%)=2.78
Ľؼע⡰ӯȫڷŹζÿӯ=ÿɹԣÿӯ=360/60=6ԪÿɹҲΪ6Ԫͬʱù˾Ʒг൱ȶԤζŸù˾ƱΪ̶ƱԣƱ۸=
