初 11700+入 42300 = 出 45000+4500(1,0,0.35)+3000(1,0,0.75)+1500(1,1,0.9);
單位成本: DM a (128700+465300)/49500=12;DMb=(0+232500)/46500=5;CC (45630+456120)/50175=10
---> 回答: DMA約當產量 = 45000+3000+1500=49500