Thx to your attention ^^
some of the Question is beyond my ability , sorry lar hope tongxun will provide the ans...
for convenience , here is those questions for further discusion
16, 一个人存钱原来就有800元了,第一星期存1元,第而个星期存2元,以后每个星期比前一个星期多一元,问50个月后工有多少前。
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An: 179900
17, JUNE 1999,M场的X销售员和Y销售员的业绩是X,Y PECENT OF THE ANNUAL YEAR 问全年多少?
1)X销售员比Y在前一个月多了百分之五十。
2)Y比自己前一个月多了百分之二十五
An :C
n is an integer, n is not a prime number, and n must be
a.the total of three prime numbers
b.the difference between two even numbers =>even number
c.the difference between one even number and one odd number => odd number
d.the product of...
e.the product of prime numbers.
应该选e
for E
every integer grater than 1 is either prime or can be uniquely expressed as a product of prime factors.
原题或许有x>1的条件, 即使有这条件E还是错
n如是prime number只能表为1与自身的product, 不能表为the product of prime numbers
大家考场上看清了