298 PS: Which of the followings does not have the same value as 5(4+(3+(2+1)))?
A. 5(4+(3+2))+1
B. 5(4+(3+2)+1)
C. 5((4+3)+(2+1))
D. 5(((4+3)+2)+1)
E. 5((4+3)+2+1)
后面的四个选项不是特别确定，但形式基本是这样的，题目和正确答案的选项很确定，这道比较简单，我选的是A。
302 S n被5除余3，问n=？
1 n能被7整除
2 n的个位数是八 选e 1和2合起来看的话 n可能等于28或者98，不充分
303 某种植物，感染真菌并且死掉的有15% （infested fungus and die平行的。。。我看得很清楚)， 染上fungus但是没有死的有40%，问感染真菌的植物有多少？ 我选 55%
V2 原文大概是：15 percent of a kind of plant infested fungus and die. 40% percent of the plants that infested fungus do not die. What percentage of the plants infested?对！没错儿！是说感染了蘑菇的有40%没死
所以应该设总共是x，于是100%*x*(1-40%)=15%, x=25%
、
304 DS 公司只有S，P两种工，人工人S拿工资是x，工人P拿工资是y，问整个公司的平均工资是不是小于（x+y）的一半呢？
1 S人数大于P人数
2 x的数值比y大4000多（4300？） 我选了E
305 PS the fee of tax collection is 0.47 dollar for each 100 dollars tax collected, collection fee 是tax的百分之几？ 又是让我欲哭无泪的一道题 选0.47%作者: 果儿 时间: 2010-8-18 09:40
306 PS: 2/(x+2)+3/(x+3)>1,what is the possible value of x^2?
I.1
II.4
III.9
A.I only
B.II only
C.I&II only
D.I&III only
E.I, II, & III
选项可能没那么准确，但是题目应该是没错的。我选的是C。
307 PS: In a research, 15% of the plants developed fungus and died, 40% of the plants who developed fungus but not died, what is the percentage of the plants developed fungus?
A. 25%
B. 27%
C. 35%
D. 40%
E. 55%
这道题目我很确定题目是这么写的，具体的语言可能不一样，但是题目和选项的数字一定是这样，我数学很渣，尤其是这种题目，ZenZen无能，这道题算了好久，答案我就不说了，怕误导大家，大家做了跟我说说算了==
308 DS: What is the area of the isosceles triangle PQR?
1). the perimeter of PQR is 55.
2). one of its three sides is 15.
我选的好像是E。
309 DS: Vickie and Carmen drive the same distance separately, what are the times of Vickie’s driving hours over Carmen’s?
1). Vickie drives 50 miles per hour while Carmen drives 60 miles per hour.
2). The whole distance is 150 miles and Vickie drives 50 miles per hour.
这道第二个条件数字不是特别的确定了，但是内容是没错的，推不出来，我选的是A。
317 store purchase n clocks with a total cost of t and sell them for d per clock. If the store need to buy 100 more clocks with the cost per clock unchanged and also sell them for d per clock, what is the profit the store made from the additional 100 clocks?
A.100d-100t/n B. 100d/n-100t C 100(d-t) D.100d-t E. d-100t 我选A
318 是说工资是每小时给多少钱，然后搬运一件东西好像在给多少钱~
james is payed $7.5 per hour and $ 1.5 perDILIVERY 之类的 in the first 8 hours, and is payed $9 per hour and $3 per unit in the following hours。 if he works for 10 hours and 25 unit, in which 7 units are finished in the last two hours, what is his pay?
这里UNIT是指搬运几件东西！
8*7.5+18*1.5+2*9+7*3=126比较确定！！！
319 The concil has 9 male members and 7 female members, if a meeting must select at least one male member and one female member, how many permutations are possible?
A. 81 B.221 C.441 D. 不记得了 E882 选C
320 The meeting must supply 420 cups of coffee.both the cups and pots are cylinder.A cup is with a diameter of 7 and a height of ***(不记得了) inner side，and a coffee pot is with a diameter of 18. what is the height of the pot?
I. one pot could fill in 30 cups.
II. the meeting need 14 pots.
我选D作者: 果儿 时间: 2010-8-18 09:42
321 Rectangular floor in a certain room has a area of 108 and perimeter of 42, 求dimension of the floor
327 一个表格题目，一个MIXTURE需要 C A B三种配料，然后说 2C=A 3B=A 表格中 C A B 分别需要花费3.544.5问这个MIXTURE需要花费多少
我的倒数第二道题，当时没时间了，我大概扫了一遍，我发现 3.5*2+4+4.5*3=24.5 答案有这个选项，我就选了
328 100*（1.003^4-1） 好麻烦B
332 有一个表格，给了每种坚果（c,a,w）的质量和单价（按pound来计算），把这些东西混合成一个mixture，其中c是twice as many as a, and 3 times w as many as a（好像是这样表达吧。。。）, 问mixture的价格是多少（用a的价格来表达，选项中有4a, 6a，其他三个不记得了，都是十几a，二十几a的，貌似我选的是6a）？（注意，不是单价！总价格）
296 关于Jupiter，Mars，Earth在宇宙里怎么转圈的题，数字都挺简单的说J是E的3又二分之一倍，问M是E的多少倍，之前还给了一个条件，是J和M的倍数比，关键是我没读懂是JM谁比谁，那词对我来说有点专业，是形容天体的，答案在7和四分之7之间徘徊。
条件不全
297 一个dimension为10*20的桌子上面放了一块小圆布， 小圆布的半径是4，问小圆布占桌面的百分之几
圆的面积大概是50.24，所以应该是25%
298 PS: Which of the followings does not have the same value as 5(4+(3+(2+1)))?
A. 5(4+(3+2))+1
B. 5(4+(3+2)+1)
C. 5((4+3)+(2+1))
D. 5(((4+3)+2)+1)
E. 5((4+3)+2+1)
后面的四个选项不是特别确定，但形式基本是这样的，题目和正确答案的选项很确定，这道比较简单，我选的是A。
同意选A。很明显，不多说。作者: 果儿 时间: 2010-8-18 09:49
303 某种植物，感染真菌并且死掉的有15% （infested fungus and die平行的。。。我看得很清楚)， 染上fungus但是没有死的有40%，问感染真菌的植物有多少？ 我选 55%
应该是55%
304 DS 公司只有S，P两种工人，工人S拿工资是x，工人P拿工资是y，问整个公司的平均工资是不是小于（x+y）的一半呢？
1 S人数大于P人数
2 x的数值比y大4000多（4300？） 我选了E
选C 设S，P分别为两周工人数量，题目要求(s*x+p*y)/(s+p)-(x+y)/2是否大于零，把这个式子化简最后变为一个乘式，把连个条件代入看最后是否大于零就可以了
305 PS the fee of tax collection is 0.47 dollar for each 100 dollars tax collected, collection fee 是tax的百分之几？ 又是让我欲哭无泪的一道题 选0.47%
同意 0.47/100作者: 果儿 时间: 2010-8-18 09:54
306 PS: 2/(x+2)+3/(x+3)>1,what is the possible value of x^2?
I.1
II.4
III.9
A.I only
B.II only
C.I&II only
D.I&III only
E.I, II, & III
选项可能没那么准确，但是题目应该是没错的。我选的是C。
开方之后代入挨个试试。
307 PS: In a research, 15% of the plants developed fungus and died, 40% of the plants who developed fungus but not died, what is the percentage of the plants developed fungus?
A. 25%
B. 27%
C. 35%
D. 40%
E. 55%
这道题目我很确定题目是这么写的，具体的语言可能不一样，但是题目和选项的数字一定是这样，我数学很渣，尤其是这种题目，ZenZen无能，这道题算了好久，答案我就不说了，怕误导大家，大家做了跟我说说算了==
应该是简单的加减55%
308 DS: What is the area of the isosceles triangle PQR?
1). the perimeter of PQR is 55.
2). one of its three sides is 15.
我选的好像是E。
重题。作者: 果儿 时间: 2010-8-18 09:54
309 DS: Vickie and Carmen drive the same distance separately, what are the times of Vickie’s driving hours over Carmen’s?
1). Vickie drives 50 miles per hour while Carmen drives 60 miles per hour.
2). The whole distance is 150 miles and Vickie drives 50 miles per hour.
这道第二个条件数字不是特别的确定了，但是内容是没错的，推不出来，我选的是A。
重题。选A。条件(2)不能知道Carmen的速度，所以不能求时间。
317 store purchase n clocks with a total cost of t and sell them for d per clock. If the store need to buy 100 more clocks with the cost per clock unchanged and also sell them for d per clock, what is the profit the store made from the additional 100 clocks?
A.100d-100t/n B. 100d/n-100t C 100(d-t) D.100d-t E. d-100t 我选A
同意选A。列式(nd-t)/n*100 化简一下
318 james is payed $7.5 per hour and $ 1.5 per in the first 8 hours, and is payed $9 per hour and $（这个数字不记得了）in the following hours。 if he works for 10 hours and 25 unit, in which 7 units are finished in the last two hours, what is his pay?
选项的数字也不记得了，最后好像是一百三十多
这题的unit 哪里来的 还有7.5的作用是啥~ NN们快来补充作者: 果儿 时间: 2010-8-18 09:55
319 The concil has 9 male members and 7 female members, if a meeting must select at least one male member and one female member, how many permutations are possible?
A. 81 B.221 C.441 D. 不记得了 E882 选C
如果狗主人的答案正确，那么这题少条件，应该是一共选3个人出来。
C(1,9)*C(2,7)+C(2,9)*C(1,7)=441
320 The meeting must supply 420 cups of coffee.both the cups and pots are cylinder.A cup is with a diameter of 7 and a height of ***(不记得了) inner side，and a coffee pot is with a diameter of 18. what is the height of the pot?
I. one pot could fill in 30 cups.
II. the meeting need 14 pots.
我选D
同意选D。条件一，cup体积可求， 因而pot体积可求， 高可求 条件二， 必修提供420 cup, 则14 pot=420cup, cup可求，pot 体积可求作者: 果儿 时间: 2010-8-18 09:55
321 Rectangular floor in a certain room has a area of 108 and perimeter of 42, 求dimension of the floor
长和宽分别为12和9
332 有一个表格，给了每种坚果（c,a,w）的质量和单价（按pound来计算），把这些东西混合成一个mixture，其中c是twice as many as a, and 3 times w as many as a（好像是这样表达吧。。。）, 问mixture的价格是多少（用a的价格来表达，选项中有4a, 6a，其他三个不记得了，都是十几a，二十几a的，貌似我选的是6a）？（注意，不是单价！总价格）
把各种坚果都用a表示出来再分别乘他们的单价
