正确答案:B 2\T\p<_2
0
答案解析:甲、乙、丙三种产品的边际贡献率分别为: Z`ww[Tbv~
甲:[(30-20)/30] ×100%=33.33% YB2gxZ
乙:[(25-15)/25] ×100%=40% CHD.b%_|
丙:[(22-11)/22] ×100%=50% _G25$%/LU
各产品的销售比重为: Jo~fri([%Q
甲:[30×1000/(30×1000+25×5000+22×300)] ×100%=19% Sw5-^2x0'
乙:[25×5000/(30×1000+25×5000+22×300)] ×100%=77% ?k;htJcGv
丙:[22×300/(30×1000+25×5000+22×300)] ×100%=4% (vchZn#
加权平均边际贡献率=33.33%×19%+40%×77%+50%×4%=39.13%。