1. a number (such as XYZ) product of these three units X*Y*Z=96, what is the value of this hundreds number
a) number is odd
b) hundreds unit is 8
答案：A
The number can be 483 or 843. So, why the answer is A.
2. 学生证有10个数字，其中有几个3
a, range 是1
b, average is 3.8 我答：d
答案：C
What is the means of “range”?
3. 某组数方差为D，问D＝？
A.这组数中至少两个数不同；
B.D^2=3D
My answer is “c”. Right?
4. 一等奖得$125, 二等奖得$40, 三等奖得$15, 问如果共计给出$1735奖金, 问拿到这些奖金的最少可能人数是多少?
1:12 2:13 3: 14 4: 17 5: 18
答案：D
why?
5.某物每30分DOUBLE一次, 问4小时以后的数比2小时以后的数大几倍? 2, 8, 17,27, 81,
答案: 15=(2^ /(2^4)-1
Is it right?
6.小明走了X里路用了6小时,又走了Y里路用了4 小时, 问平均速度.
(1) 3X+2Y=120
(2) X=20
我选A
问求（x+y）/10=?,答案不是“c”吗。
7．六，七，八月的总降雨量通常是12， 问去年的三个月的总降雨量是normal的几分之几
（1）去年六月的降雨量是normal六月降雨量的12%
（2） 去年七 八月的降雨量是这两个月normal的50%
答案： C。（？？？？）作者: himba 时间: 2004-11-21 20:26
1. anwser should be C
2. range means the largest number minus the smallest number, so there are only 2 kinds of number: "4" ans "3". (the numbers of "3" are 2) ......
Therefore, the answer should be C.
3. u r right.
4. In order to get least number, the number winning $125 should be most, therefore: 13 people win $125, 2 people win $40 and 2 win $15, so the answer is 13+2+2=17
5. I thinkn it is right
6. I agree your answer, C.
7. I think the answer should be D
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