MathJJ onion 2003

MathJJ
onion 2003-08-25 22:29:23
1. x-2, x-3, 1.5, X. X+1.5, If the median is 1, what is the X.
A.0 , B.1, C.-1, D.-2 E.1.5
B

2. If x>y
(1). 2^x>3^y
(2) 5^x>4^y
I'm not sure if there are some other conditions.
At least 2 or 3 thid DS questions about comparison.

3. 4 teams debate to other 6teams. one team can debate at most once, the order is irrelevant, total detates between these teams
4*6=24

4. s @ T = T@S , @ indicates the mathematical operations. which of the following can be expressed
I. S@T= S+T-ST
II. S@T= (S-T)(T-S)
III. S@T=S/T+ T/S
I don't know how to solve it, I choose I and II

5.100 people, 48, 45 and 57 read book a,b,c, 20 people read both of three, 10 people tead nothing, what is the number of the people only read two books.
A.20,B.30 C40 D50 E70
My answer is 40

6. a rectangular solid, Height:length:width is 3:2:2, the volume is X, what is the length expressed by x.
answer is \\"Gen1 Hao4 (2X/3) de3 San3 Chi4 Fang1\\"

7. in a college, Faculties : students=1:13 last year, when the number os faculty add 55 and the number of students add 74 this year, the ratio is 1:12, what is the students now?
not sure 55 and 74 is correct.

8. Be sure to review the chapter of standard deviation, know more details about it. It's my loss in my review, I almost totally ignore it (-:

9. a hundred digit number, if each number is a prime number and the product of the three number is 144, what is the tens number of the least small hundred digit number.
My answer is 8; 2*8*9=144

The questions will be more difficult after the 10th, so be careful to keep the good mood and the pace. I almost finish the questions at the final minutes. In the test, I thought I got a bad score, but the final score was better than I expected due to the difficult coefficient. Don't give up in the test no matter what diificulty you face to.

　

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