41.圆柱体CAN, 半径=R,高=H, 若另一个圆柱体积相同，r=2/3 R, 那样高h为多少？
9/4h
42.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的算术平均值哪个大？
S,T 为连续的数
S的算术平均值大于T的
43. 452*36*17
7 个数字中，什么数字增加1，乘积增加小于1000？
A. 1
B. 2
C. 5
D. 7
E. 4
44. N 有几个不一样的质数？
A. N 是7200的因子
B. 180 是N的因子
45． M, P, T 是positive integer, m
A. T-P=P-M
B. Forgot
46. 一个序列，从第三位数起，每一个数都与它前面连续的两个数的和有关，the number is the sum of the 2 numbers in the sum is odd or if the sum of the 2 numbers are even, the forth1 number is 7 and the fifth number is 5, what is the first number?
47. Give the English definition of standard deviation2, 2 or 3 lines, there are 4 numbers, 9, 8, 7, 4, ask the standard deviation of these 4 numbers?
48. X, Y 是正整数，X 是3的倍数吗？
A. X-Y 是3的倍数
B. X-2Y是3的倍数
49. N除以3的余数是多少？
A. N除以2 余1
B. N+1除以3 余2
50. 正方体内有以内切球，直径为6，求正方体内最长的一条对角线长度
51．一正方形，10 长 20, 5宽9, 求周长范围
52．
A. S, T 关系
B. t 1
题目记不清，但通过A, 求出T 有两值1，2，依据B，可确定T=2, 则答案选C
53. 卖门票 on Monday Tuesday, childrens ticket $7 each, adult $10 each, childrens number on Tues is twice the number on Monday, adults number on Tues is the number on Monday, the total revenue on Monday is $2700, revenue on Tuesday is $2400, whats the childrens number on Monday?
54. 2
55．3个不一样的旗子排列视为一个信号，有四面不一样的旗子，可排成几个信号？
56．从50加到100的和？
57．孩子们拿笔，either 3 pens , 2 pencils, or 1 pen, 3 pencils, the average pen number is 1.6, whats the average pencils number?
58. lottery $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
59. 7 red tomatoes, 5 green tomatoes, ask the probability of all 3 tomatoes are red .
60. 某数的80%是多少?
61. Is xy x^2y^2
A. 14X^2=3
B. Y^2=1
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