GRE考试

【单选题】

If the total number of commuters toCounty W is twice the number toCounty Z, and if the average number of vehicles that transport commuters daily toCounty W is 30,000, what is the approximate average number of vehicles that transport commuters daily toCounty Z
A、12,000
B、15,000C、18,000
D、27,000
E、36,000
网考网参考答案：A
网考网解析：
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