某商店用每千克19.8元的奶糖14千克,每千克7.4元的水果糖12千克和每千克9元的酥糖2千克混合成什锦糖,这种
什锦糖每千克的价格是多少元?
人气：255 ℃ 时间：2020-05-04 14:18:33
解答
总价=19.8×14+7.4×12+9×2=384元
单价=384÷(14+12+2)=96/7元/千克
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