问题
单项选择题
It takes 10 people 16 hours to complete a certain job. How many hours would it take 8 people, working at the same rate, to complete
of the job
答案
参考答案：C
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It takes 10 people 16 hours to complete a certain job. How many hours would it take 8 people, working at the same rate, to complete
of the job
参考答案：C