以下数学问题出自新东方补充材料
我解出不同答案，但实在想不明白。费费的答案稍后公布，大家帮忙解解看
507
Three stacks containing equal numbers of chips are to be made from 9 red chips, 7 blue chips, and 5 green chips. If all of thes chips are used and each stack contains at least 1 chip of each color, what is the maximum number of red chips in any one stack?
A.7 B.6 C.5 D.4 E.3
509
The figure（就是一个正方形，每边外面加一个半圆的图形，看上去像个四瓣的花） shows the shape of a sign to be placed in front of a flower store. The sign has a semicirle on each side of the square, if the sign is 3 centimeters thick and if each side of the square is 50 centimeters long, what is the volume, in cubic centimenters. of the sign?
A.1250pi+2500 B.3750pi C.3750pi+7500 D.5000pi+7500 E.11250pi
510
What is the 1st term in sequence S?
(1)The 3rd term in S is 2
(2)The 2nd term in S is twice the 1st, and the 3rd term is three times the 2nd
541
A computer is programmed to generate a list of multiples of prime numbers 2, 3, and 5, as shown below:
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Program 1-List multiples of 2
Program 2-List multiples of 3
Program 3-List multiples of 5
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How many integers less than 100 will appear on all of the lists of programs produced above?
A.None B.1 C.3 D.5 E.An infinite number of integers
[此贴子已经被作者于2002-9-15 12:48:49编辑过] | 
