设没千克硬糖x 则软糖是1-x5.1x+8.9(1-x)=5.45.1x+8.9-8.9x=5.48.9x-5.1x=8.9-5.43.8x=3.5x=35/38 软糖 1-35/38=3/38所以比例是 35/38:3/38=35:3
