正确答案:B Tm:#"h\F
答案解析:甲、乙、丙三种产品的边际贡献率分别为: y~A7pzBZ=
甲:[(30-20)/30] ×100%=33.33% E_'n4@}Cx
乙:[(25-15)/25] ×100%=40% );uZ4PNK/?
丙:[(22-11)/22] ×100%=50% %oCjZ"ke
各产品的销售比重为: :UhFou_D4l
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% :{xN33@6\X
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% 76i
rb!-
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4% H+#wj|,+\
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。