61)mail contributes to 25% of all income, telephone contribute t percent, person contribute 225,000 less than all income. then tell you telephone=150,000, ask telephone contribute what percent of all income(注意题目给的是tele=150,000,很容易理解为mail=150,000)ans: 50%
【机委】:50%
什么意思??看不懂题
23. 某公司15个部门的头头分别管理20-30个员工,问是否能判断各部门人数平均值大于25
A. 其中有7个部门员工为20-25之间
B. 中数为25
【确认】A
什么意思???为什么??
61)mail contributes to 25% of all income, telephone contribute t percent, person contribute 225,000 less than all income. then tell you telephone=150,000, ask telephone contribute what percent of all income(注意题目给的是tele=150,000,很容易理解为mail=150,000)ans: 50%
【机委】:50%
------------------------------
mail: 25%
tele: t%
person: X (total income) – 225000
mail + tele + person = X (total income)
(1) (25% + t% )X + (X – 225000) = X => (25% + t%) X = 225000
(2) t% X = 150000
t% = 50%作者: jupiter_li 时间: 2002-11-21 22:24
谢谢了!!
我说23也不该是A 啊
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/)