maxz=5.24x1+7.30x2+8.34x3+4.18x4 S t 1.5x +1.0x +24x <2000 +5.0 ≤8000 1.0x1 +35X3+1.0x4≤5000 XPage:3 QSC 华东理工大学 工商经济学院 生产与运作管理 max z= 5.24x1 +7.30x2 +8.34x3 +4.18x4 s.t. 1.5x1 +1.0x2 +2.4x3 +1.0x4 ≤2000 1.0x1 +5.0x2 +1.0x3 +3.5x4 ≤8000 1.0x1 +3.0x2 +3.5x3 +1.0x4 ≤5000 x1 , x2 , x3 , x4 ≥0