1.共有(7.95-6.03)/0.03+1=65个
因此总和=(6.03+7.95)*65/2=454.35
2.原式=412*0.81+412*0.19+1.25*19+11*9.25
=412+1.25*19+11*1.25+11*8
=412+37.5+88
=537.5
1.共有(7.95-6.03)/0.03+1=65个
因此总和=(6.03+7.95)*65/2=454.35
2.原式=412*0.81+412*0.19+1.25*19+11*9.25
=412+1.25*19+11*1.25+11*8
=412+37.5+88
=537.5