2根*100副/(3M/1.5M)=100根;
3根*100副/(3M/1.2M)=3根*100副/(1.2M*2根+0.6M*1根)=150根*1.2M+150根*0.6M;
4根*100副/(3M/1M)=134根+1根*2M;
(6根*100副)-(150根)/(3M/0.6M)=90根
所以共计3M的角钢100根+150根+134根+90根=474根
假设3M的为A,1.5M的为B,1.2为C,1为D,0.6为E。
现在题目是有B数量200,C数量300,D数量400,E数量600,问你可以组成多少A,你还不会吗?