设A村运甲x吨,运费为y
y=20x+(240-x)*15+(300-x)*25+[200-(240-x)]*24
=20x+(240-x)*15+(300-x)*25+(x-40)*24
40≦x≦240
y=4x+10140
当x=50时 y最小值为10340
设A村运甲x吨,运费为y
y=20x+(240-x)*15+(300-x)*25+[200-(240-x)]*24
=20x+(240-x)*15+(300-x)*25+(x-40)*24
40≦x≦240
y=4x+10140
当x=50时 y最小值为10340