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At a certain company, the average (arithmetic mean) number of years of experience is 9.8 years for the male employees and 9.1 years for the female employees. What is the ratio of the number of the company's male employees to the number of the company's female employees?
(1) There are 52 male employees at the company.
(2) The average number of years of experience for the company's male and female employees combined is 9.3 years.
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分析B选项
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我有更好的解析 
暂无雷哥网文字解析
实际上就看分别求出男女员工各自的人数
设男员工为X,女员工为Y
条件一缺少条件，求出不出y的值
条件二可得：(9.8x+9.1y)/x+y=9.3,可以得出x=0.4y,重新带入，可以分别求出x.y值
小良冠二郎
只求比例，两个未知数也可以做
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2023-03-14 00:48:29
200615pfqzk
只求比例，两个未知数也可以做
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2022-05-01 21:37:02
175821lrsw
直接总数想成1, x设成男人的百分比 9.8x+9.1（1-x）=9.3 x=2/7 男女比例2比5 美滋滋
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2022-03-06 01:12:36
Kath1230
看清题，是求ratio的 不是求数量的
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2019-01-24 01:46:31
298881dgwb回复Kath1230
解析有點問題 做到x=0.4y 就行
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2020-10-26 10:43:19
lxystar1
看清问题是算数量，算ratio，还是判断ratio相对大小。
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2017-06-26 10:47:08
parker
知道了，看错题。。
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2017-02-16 11:20:29
parker
x=0.4y,然后怎么求？
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2017-02-16 11:19:19
气旋势力强回复parker
这就是答案啊，什么怎么求。。。
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2017-08-30 18:50:08
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