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A bakery had 30 dozen rolls when it opened yesterday. By noon $$\frac{1}{3}$$ of the rolls had been sold.and between noon and closing time, $$\frac{1}{2}$$ of the remaining rolls were sold.
Quantity A
The number of rolls sold between opening time and noon
Quantity B
The number of rolls sold between noon and closing time
C显示答案
· 相关考点
2.1.1 分数的加减乘除运算
以上解析由 考满分老师提供。
