309.
DS一个town的房子的均价是否more than50000?
条件一,a quarter of the houses are less than 35000
条件二,a quarter of the houses are more than 65000
参考答案:E
思路:
条件一不充分;
条件二不充分;
条件一+条件二,也不知道
310.
有一个什么gold, sliver的题。给了从同一种矿中,挖出的gold和sliver的cost分别是y 和y/2(单位好像是dollar/g).如果金、银分别sale了x?和nx? dollar,问总profit是多少。我本来觉得求利润就是找个已知条件里面的sale-cost就ok了,算完了发现答案里不单没有,还有个字母s,又回头找s到底是什么东东。。。
题目不清楚,待定
思路:Sales – Cost作者: jeanyy426 时间: 2011-1-17 17:19
311.
Before being simplified, the instructions for computing income tax in Country R were to add 2 percent of one’s annual income to the average of 100 units of Country R’s currency and 1percent of one’s annual income. Which of the following represents the simplified formula for computing the income tax, in country R’s currency, for a person in that country whose annual income is I?
A.50+I/100。B.50+3I/100。C.50+I/40。D.100+I/50。E.100+3I/100
参考答案:C
思路:
2% of one's income= 2I/100
1% of one's income= I/100
Average of currency=100
average of 100 units of Country R’s currency and 1percent of one’s annual income.:(100+I/100)/2=50+I/200
321. 一个工厂里面有两种工资的工人,分别是:temporary worker 和 permanent worker。说TW的median 工资是12刀,PW的median工资18刀. 然后问,整个工厂的平均工资有没有比TW这个工群里工资最高的人高. (题目太搞了....)
(1) the wage range of TW is 6 dollars.
(2) the wage range of PW is 6 dollars.
参考答案:E
思路:没有讲明两种工人的数量作者: myice 时间: 2011-2-16 17:35
支持楼主了作者: supermanlee 时间: 2011-2-21 06:31
O(∩_∩)O谢谢
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