1、25-30:7,0.175; 30-35:8,0.2; 35-40:9,0.225; 40-45:10,0.25; 45-50:6,0.152、平均日产量=(27.5*7+32.5*8+37.5*9+42.5*10+47.5*6)/40=37.455 如有不懂请追问,尽早采纳哦~~~