热心网友

丙=810/(1+2/3+4/9)=9*810/(9+6+4)=7290/19,乙=2/3*丙=4860/19,甲=2/3*乙=3240/19

热心网友

设乙是x, 则甲2x/3, 丙3x/22x/3 + x + 3x/2 = 810x=4860/19, 甲3240/19, 乙4860/19, 丙7290/19