Goi so chi tiet may to 1 va 2 lam duoc trong thang 1 la x,y(x,ythuoc n*,x:y<600,chi tiet may)
Tong so chi tiet may 2 to san xuat duoc trong thang 1 la: x+y=600 (chi tiet may) (1)
Thang 2 to 1 san xuat duoc la:x+18%x (chi tiet may)
Thang 2 to 2 san xuat duoc la:y+21%y (chi tiet may)
Tong so chi tiet may 2 to san xuat duoc trong thanh 2 la: 59/50x+121/100y=720 (chi tiet may) (2)
Tu (1) va (2) ta co hpt x+ y =600 va 59/50x+121/100y=720
Giai he phuong trinh ta duoc x=200 , y=400
Vay thang 1 to 1 va to 2 san xuat duoc la 200va 400 chi tiet may
