甲的工效为x,乙的为y,丙的为z,则有:
6x+6y=1/3
2y+2z=1/4(1-1/3)
5x+5y+5z=1-1/3-1/4(1-1/3)
解得:
x=3/180
y=7/180
z=8/180
甲应得:1800x(6+5)3/180=330
乙应得:1800x(6+5+2)7/180=910
丙应得:1800x(2+5)8/180=560
甲的工效为x,乙的为y,丙的为z,则有:
6x+6y=1/3
2y+2z=1/4(1-1/3)
5x+5y+5z=1-1/3-1/4(1-1/3)
解得:
x=3/180
y=7/180
z=8/180
甲应得:1800x(6+5)3/180=330
乙应得:1800x(6+5+2)7/180=910
丙应得:1800x(2+5)8/180=560