[数学讨论稿4] 伊尔而斯起，数学讨论稿301~400题（更新时间01.21 18：00）

hyacinthnan10

占头排了？：）
lz 辛苦！ 好厉害！

hyacinthnan10

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

问题：a quarter of the hosue是啥意思？ 是一个季度的价钱是65000吗？ 不是代表1/4，对吗？

JessicaOu

Thanks a lot!

梦离ouzi

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

问题：a quarter of the hosue是啥意思？ 是一个季度的价钱是65000吗？ 不是代表1/4，对吗？

-- by 会员 hyacinthnan10 (2011/1/14 4:05:12)

是指1/4的房子卖这个价钱或以上。

梦离ouzi

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

1% of one's income= I/100
2% of one's income= 2I/100
Average of currency=100
(100+I/100)/2=50+I/200
(50+I/200)+(2% of one's income)=
(50+I/200)+(2I/100)
=50+I/40

suomiliisa

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

1% of one's income= I/100
2% of one's income= 2I/100
Average of currency=100
(100+I/100)/2=50+I/200
(50+I/200)+(2% of one's income)=
(50+I/200)+(2I/100)
=50+I/40

-- by 会员 梦离ouzi (2011/1/14 10:29:52)

谢谢！希望你昨天的考试，一切顺利！

赵雯89

请问一个月机经一般有多少道啊？？

赵雯89

就是数学机经一般有多少道呢？》

xiuxiuhyx

这道题是prep1套的一道题，考试考了原题吗？

xiuxiuhyx

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

1% of one's income= I/100
2% of one's income= 2I/100
Average of currency=100
(100+I/100)/2=50+I/200
(50+I/200)+(2% of one's income)=
(50+I/200)+(2I/100)
=50+I/40

-- by 会员 梦离ouzi (2011/1/14 10:29:52)

这道题是prep1套的一道题，考试考了原题吗？