184. X,Y两忙挣钱，问 In June，the rate X 挣的钱 to Y挣的钱？
A) X In June挣的钱比Y In May挣的钱多50%
B) Y In June挣的钱比In May挣的钱增长了25%

185. a square 面积为16，T为square 内一点，与底边形成三角形，TA 为高，A 为底边上一点，问TA长？
A) 三角形面积为square 的 1/3
B) 三角形面积与square内剩余面积之比为 1/2 （本题记不确切了）

186． 80 billion Fax 那一题，选 10

187. x,y,z 为consecutive integers, 且x< y< z，问z^2 - x^2 -y^2 不可能为的值
-12
-6
0
3
4

188. given the formula,ask 從50加到100的和？

189. lottery² $16 billion, separate as gifts, government payment, and expense, give the relation of payment and gift & the relation of payment and presentation, ask the payment in $ amount

190 . r>1, r * = 1-(1/r) what’s the value of : r * - (r-1)* = 1/r(r-1)

191. 一个三角形x,y,z，分别为三个外角，确定x的度数？
A. x=y
B. x=z Susan’s answer is C

192. 99到301间的偶数的和
答案：20200
方法：99到301间的偶数的和=100到300间的偶数的和，等差数列求和=(A1+An)*N/2=(100+300) * 101/2=20200

193.DS: 两个数列S,T，S 由偶数组成，T由奇数组成，两个数列个数相同，问S的MEDIAN 和T的算術平均值谁大？
(1) S,T 為連續的数
(2) S的算數平均值大于T的

194.a rectangular has area of 15000 square feet, the length is 50 feets than the width, what is the length? A:150
8.abcdefg seven medicine, how many different discriptions that the doctor can give if any three of them are chosen and a and b cannot be taken at the same time together?
A:30

195.a 表小時快6 秒那題 my answer was 4 mins

196. which one has least value:

a: 1/100, b: 0.1/10, c: 1/600, d: 0.01/10 e: ? my key: c

197.1/1000=？

198.k=0.1-0.1^2, x>0.05?(x positive)( I am not sure)
a: K>0.0009/x
b: k<0.009x

199. ask the volume of a cube
a: k, k+2, k-1 is its three side
b: one of its greatest surfcae is 120
(I am not sure : one of its two greatest side is 120)

200.p,q,r,s依次排开，ps=10,ask qr=?
a:qs=9
b:pr=3

201.(图表）求一个表达式。两组数字，a有4，象对应b有4个，其中一个是x,
my choice is x=a^2/1-b, sorry, 记的不清楚， anyway, it is easy.

202.n<11的质数，求n=?
A: 2^-n>2^-6
B: 4^-n>2^-6

203. 1. x<0, 根号下(|x|x)=? 答案:-x

204. 一个数,不是prime,那么一定是 ? 选E
a) 一个even prime加一个odd prime
e) multiple of primes

205. 看X报的有60%,看Y报的有75%.问至少有多少人两种报都看? 答案:35%

206. x+y=17,问y a) y<17/2
b) x>9.8

207. 一个连续数列,以3开头,问有多少个数?
a) 平均值为6
b) range为7

208. 3 男5女中选3人，问至少有1男的选法。

209. 有11 个人做A, 10 人做B, 14 人做 C, 三个都做的3人， 只做1件事的20人， 问有多少人只做两件事。

210 x^2y>0?
1) x=y
2)xy>0