设甲乙含糖率分别为芦纯州a,b;倒出的橙汁裤衫为x[(150-x)a+bx]/(150-x+y)=[(200-x)b+ax]/(200-x+x) 等式两边是含糖率..根据题目说两瓶含糖率相等4[(150-x)a+bx]=3[(200-x)b+ax]600a-4ax+4bx=600b-3bx+3ax600a-600b=x(7a-7b)x=[600(a-b)]/[7(a-b)]x=600/7所陪蔽以倒出的橙汁为600/7克