is C
from A we know no more than the relationship between X in June and Y in May
but the question asks for that between X in June and Y in June作者: yvonnezenith 时间: 2003-1-20 00:41 标题: 再请教大家
11. the ratio of revenue of the salesperson X in June to that of the salesperson Y in June? ans:C
(1) revenue of the salesperson X in June is 25% greater than that of the salesperson Y in May
(2) revenue of the salesperson Y in May is 50% greater than that of the salesperson Y in June
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[确认]C
觉得是A啊。是不是题目有问题？
74.五个字母 D I G I T ,可以组成一个string,如 DIGIT.两个II不相临,可以组成多少string?
36
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[确认]P5-P3*2=108
请教。为什么不是P5,5-P4,4? 而且，为什么不可是P3,3*C4,2?
[此贴子已经被作者于2003-1-20 0:41:44编辑过]
作者: yvonnezenith 时间: 2003-1-20 00:42
嚯嚯，题目看错了。
谢谢。作者: isenetlab 时间: 2003-1-20 10:15
69) (M*50%+F*40%)/(M+F)=45%===>F=M, so u r rightDS題 給兩個學校學生成績的平均數和中位數
有個表 大概長這樣:
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| 人數 平均數 中位數|
| 甲校 a 85 87 |
| 乙校 b 84 82 |
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問甲校學生的中位數有沒有大於混合起來的中位數
(1) a=42 b=47
(2) a+b=89 (數字記不準 但題型是對的)
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According to thequestion , in Jia U niversity,----M N----, M+N=194,M<=87,N>=87,
in Yi Uinversity,----P-----,P=82, but the value of P+1 has a range(e.g 82<=P+1<=97,so the median after combination is not sure作者: yvonnezenith 时间: 2003-1-20 12:36
thanks!
但是五个字母 D I G I T ,可以组成一个string,如 DIGIT.两个II不相临,可以组成多少string?
36
------------------------
[确认]P5-P3*2=108
我觉得应该是P3,3*C4,2=36。大家高见呢？
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