正确答案:B lLDZ#'&An
答案解析:甲、乙、丙三种产品的边际贡献率分别为: 7[w<v(Rc
甲:[(30-20)/30] ×100%=33.33% [q_+s
乙:[(25-15)/25] ×100%=40% 15hqoo9!
丙:[(22-11)/22] ×100%=50% 4M|uT
9-
各产品的销售比重为: pQK SPr
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% > (9\ c
F{
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% bMxK @$G~
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4% +D:8r|evH
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。