题目信息
The entire contents of a full sack of flour can be used to make 15 cupcakes and 8 pizzas. The same full sack of flour can be used to make 7 cupcakes and 14 pizzas. If a full sack of flour is used to make only pizzas, how many pizzas can be made?
A:$$18\frac{1}{4}$$
B:$$18\frac{1}{2}$$
C:$$18\frac{3}{4}$$
D:18
E:$$19\frac{1}{4}$$
参考答案及共享解析

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正确答案:
E:$$19\frac{1}{4}$$
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题目来源
Magoosh