丙数是甲乙两数和的8分子3,
则甲乙丙三数的比
=10:6:[(10+6)*(3/8)]
=10:6:6
=5:3:3
所以
甲数=748*5/(5+3+3)=3740/11=340
乙数=748*3/(5+3+3)=2244/11=204
丙数=乙数=204