1 A:y1=20x+25(200-x)=5000-5x,B:y2=15(240-x)+18(60+x)=4680+3x2 y1-y2=320-8x 当0x>40时 A村的运费较少3 y2<=4830 则x<=50 y1+y2=9680-2x>=9680-100=9580元袭橡
(1)A村y1=5000-5x,B村y2=4680+3x(2)A村5000为最大值,B村不扮培绝低于4680(3)y2=4830,x=50当x=0时,运费为9468元,即A村厅姿货中锋物全部运往D库。
200