If there are 18 boys and 12 girls in a class what

问题补充：

If there are 18 boys and 12 girls in a class,what percent of the class is girls?

答案：

12 divided by 30

40% (40 percent)

======以下答案可供参考======

供参考答案1:

forty percent

供参考答案2:

12/30供参考答案3:

2/5

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