正确答案:B $!YKZ0)B'0
答案解析:甲、乙、丙三种产品的边际贡献率分别为: Em e'Gk
甲:[(30-20)/30] ×100%=33.33% jM5_8nS&d
乙:[(25-15)/25] ×100%=40%
4%g6_KB
丙:[(22-11)/22] ×100%=50% 0U82f1ei
各产品的销售比重为: k}-yOP{
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% f._l105.
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% _:35d1[
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4% =?/N5O(
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。