题目信息
Ben is three times as old as Ron. Ed is 8 years younger than Ben. Ron is 7 years older than Ken. If the sum of the ages of all four people is 161, how many years old is Ron?
A:15
B:19
C:22
D:24
E:27
参考答案及共享解析

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已选答案:
正确答案:
C:22
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题目来源
Magoosh