正确答案:B 4C01=,6ye
答案解析:甲、乙、丙三种产品的边际贡献率分别为: bHS2;K~
甲:[(30-20)/30] ×100%=33.33% @dCu]0oNI
乙:[(25-15)/25] ×100%=40% \U
!<-
丙:[(22-11)/22] ×100%=50% q3NS?t!
各产品的销售比重为: J@Zm8r<
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% CM5A-R90
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% s
7xRry
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4% ;S?1E:\av
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。