题目信息
In a group of children, the average (arithmetic mean) weight of the boys is 60 pounds, and the average weight of the girls is 48 pounds. If the average weight of all of the children in the group is 50 pounds, what is the ratio of the number of boys to the number of girls?
A:$$\frac{1}{12}$$
B:$$\frac{1}{6}$$
C:$$\frac{1}{5}$$
D:$$\frac{1}{4}$$
E:$$\frac{1}{3}$$
参考答案及共享解析
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正确答案：
C:$$\frac{1}{5}$$
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